Keyboard /interface error

keyboard /interface error

Some times you have seen that your desktop pc reports a keyboard error “Keyboard Interface Error” press F1 to resume during BIOS boot up. i am having the error: keyboard/interface error press f1 to resume. ps2 keyboard and mouse is not working, i have checked with known. There is a problem with either the keyboard or the keyboard controller on the motherboard. Try a keyboard that is known to be working. If the.

Keyboard /interface error - agree

How do I fix keyboard interface error?

Some times you have seen that your desktop pc reports a keyboard error “Keyboard Interface Error” press F1 to resume during BIOS boot up. This problem is related to the two PS/2 ports situated on the back of the desktop computer for mouse and keyboard.

What to do if keyboard is not working in BIOS?

Once in the BIOS, you want to be looking for and option in there that says ‘USB legacy devices’, make sure it is enabled. Save the settings in the BIOS, and exit. After that, any USB port the key board is connected to should allow you to use the keys, to access the BIOS or Windows menus when booting if pressed.

How do I disable keyboard errors in BIOS?

Press the “Left” cursor key to navigate to the “Main” menu header if not already active. Press the “Down” cursor key to scroll down to the “Halt On” or “Halt On Errors” option, then press “Enter.”

How do I fix F1 on my resume?

Fix Press F1 Key to Start Windows Issue

  1. Go to your BIOS and load default settings.
  2. If you don’t have a floppy drive then disable the Floppy Mode option in BIOS.
  3. Look for the option “Halt On” and set it to “No Error”.
  4. Save the settings and exit from BIOS.

Can’t use keyboard in Windows Boot Manager?

2 Answers

  1. Reboot pc.
  2. Enter BIOS.
  3. This step may vary in different BIOS versions. In my case the PC had a Gigabyte motherboard: Select Interface of Integrated Peripherals from the main BIOS menu and locate the USB Keyboard Support option and set it to Enabled it.

How do I enable USB keyboard in BIOS?

To enable USB in older operating systems, select “USB Legacy Support,” “USB Keyboard Support” or similar option and change the setting to “Enabled.” BIOS setup varies from motherboard to motherboard. Review the documentation that came with your computer if you have a difficult time navigating the BIOS.

How do I disable HP keyboard in BIOS?

How to temporarily disable laptop keyboard

  1. Head into your Start Menu, and type in Device Manager.
  2. Open up the Device Manager and find your way to Keyboards and hit the arrow to the left of it.
  3. Here you will be able to find your laptop’s keyboard. Right click on it and hit ‘Uninstall’

How do I bypass strike F1 key to continue?

Resolution

  1. Press the “F2” key to enter system setup.
  2. Arrow down to “F1/F2 Prompt on Error”
  3. Select “Disable”
  4. Press
  5. Select “Exit and Save Changes” and press

How do you fix F1?

How to fix F1: 5 key things the bosses need to do to make F1 great again

  1. Make the cars lighter and more ferocious.
  2. Add a sprint race to the Grand prix weekend.
  3. Distribute the money more fairly.
  4. Bring back tyres that allow drivers to push hard.
  5. Stop people talking the sport down.

Why do I get a keyboard error when I start my computer?

On start up, I get an error message “keyboard error” . This has been happening about 50 % of the time randomly since I purchased the computer in June 2017. I contacted HP customer support and they were not able to correct the problem. This does not appear to compromise the computer’s performance, but it is a nuisance.

What to do if your keyboard won’t boot?

Request you boot the computer to the desktop. Reseat the batteries on the keyboard and mouse or try a new set of batteries and check. If the issue persists, please contact our phone support for the service options available. Keep me posted.

Why is my mouse and keyboard not working?

The mouse lights up for a second but quickly goes black. I did a hard reset and “Restore Default Settings” per forum results but this didn’t help. I also tried several 2.0 and 3.0 USB ports and confirmed that the wired mouse and keyboard I’m using work on a different computer.

What is the problem with my hp keyboard?

Try the suspect HP keyboard on a different PC if possible. Try the HP keyboard or another keyboard using different USB ports on your PC. Try other USB 2.0 and USB 3.0 ports. There is either something wrong with the keyboard or something wrong with USB on the motherboard.

Keyboard interface error message

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Started by Basscarver , Jul 22 2017 09:13 AM


9 replies to this topic

#1 Basscarver

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Posted 22 July 2017 - 09:13 AM

I am using Windows 10 and I have a logitech K120 keyboard. Just recently I get a message during start up that there is a keyboard interface error, press F1 to continue. It works fine after I press F1. Could this be the USB connection ? Or is it time for a new keyboard ?



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#2 mikey11

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Posted 22 July 2017 - 09:15 AM

if it is a wireless keyboard try replacing your batteries



#3 Basscarver

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Posted 22 July 2017 - 09:21 AM

This model is wired. Thanks for your reply.



#4 britechguy

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Posted 22 July 2017 - 10:56 AM

I'd say it could be either a USB port problem, a keyboard problem, or (very unlikely) both.

It's easy enough to test out the USB port theory. Move it to another port and see if the problem persists. If it does then it is most likely some subtle thing starting to go wonky with the keyboard itself.

Brian  AKA  Bri the Tech Guy (website in my user profile) - Windows 10 Pro, 64-Bit 
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#5 malwaredpc

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#6 Basscarver

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Posted 24 July 2017 - 12:58 PM

I installed a new keyboard and pluged into a different USB port and I still get the keyboard interface error message during start up. :smash: 



#7 malwaredpc

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Posted 24 July 2017 - 01:35 PM

As I said, you can change that alarm in the BIOS settings.

 

Are you sure it says the problem is the keyboard... Maybe it is telling that your Hard Drive WILL fail, press F1 to resume.


Edited by malwaredpc, 24 July 2017 - 01:36 PM.


#8 Basscarver

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Posted 24 July 2017 - 01:46 PM

The message says keyboard interface error. Everything is working fine I don't see any problem at all with this computer.



#9 malwaredpc

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#10 robertpaegelow

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Posted 16 January 2019 - 07:30 AM

There is a setting in BIOS called Keyboard Error Reporting that you can disable. I can only confirm this on a fujitsu computer though, but it probably exists in other forms on other brands aswell.

 

BIOS > Boot > Keyboard Error Reporting[Disabled]






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  1. 27-12-2007, 06:44 PM#1

  2. 27-12-2007, 06:55 PM#2
    Computer Technician wainuitech's Avatar
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    Default Re: Keyboard/interface Error, Help?

    Try removing the Keyboard, blow out the connection / plug, just in case there is any rubbish / dust in them. Then reset the BIOS back to default settings, someplace in the BIOS settings on the main screen will be what key to press. See if that helps.

    Just to clear up - is the keyboard you are having problems with the wireless or a PS2 ?

    Also have you tried another PS2 Keyboard ?
    Last edited by wainuitech; 27-12-2007 at 06:57 PM.

  3. 27-12-2007, 07:00 PM#3

  4. 27-12-2007, 07:03 PM#4
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    Default Re: Keyboard/interface Error, Help?

    If you are able, try a standard PS2 keyboard. Usually I have found you need a PS2 to repair a wireless if they play up.

    Resetting the BIOS may also fix it, but remember to set up USB keyboard support, ususally some place like onboard Pref's Location

  5. 27-12-2007, 07:08 PM#5

  6. 27-12-2007, 07:20 PM#6

  7. 27-12-2007, 07:21 PM#7
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    Default Re: Keyboard/interface Error, Help?

    Could be out of range possibly, try moving it to where you would usually be in front of the PC, or check the batteries to make sure they have not gone / going flat.

  8. 27-12-2007, 07:24 PM#8

  9. 27-12-2007, 07:28 PM#9
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    Default Re: Keyboard/interface Error, Help?

    If they were going flat then it may but veryyyyyy slow with lots of lag, I've seen spyware take out a wireless keyboard on several occasions. Needing a wired one to repair the system.

    Personally I'd change the batteries and see if it makes any difference, if not then it may also be the wireless softwares gone "A Bit Funny", reinstalling it may fix it.
    My media center PC with wireless Keyboard/mouse has a range of around 5 mtrs, when its batteries start to go flat they drop quick, the range goes from the other side of the room on the couch ( 4 mtrs) to 1/2 mtr in a matter of 10 minutes.
    Last edited by wainuitech; 27-12-2007 at 07:31 PM.

  10. 27-12-2007, 07:33 PM#10

First post, by BurnedPinguin

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Hi vogons, I am having an issue with a "PCI486 V1-HJ3" 486 motherboard, I saw a post about it on here but it didn't help much. Every time it turns on, it gives me a keyboard Interface error, and the 3 lock lights on the keyboard flash 2 times a second, non-stop. Things I have tried so far are:
• Replace CMOS battery
• Reseat BIOS chip
• Different ram
• Remove the socketed cache
• 2 different, known working keyboards (tested on other systems)
• Resolder keyboard connector
• Remove corrosion from SMD chips
The motherboard has an AMD-X5 133adw, aka 5x86-p75. 2x8mb edo sticks (have tried 1x16 fpm stick), and 256k real, socketed cache. I have tried multiple graphics cards too. The bios string is: "41-C101-428027-00101111-101094-ALI87/89-U" A picture of the very motherboard follows. Any help is appreciated, and thank you for your time!

Last edited by BurnedPinguin on 2021-01-21, 20:33. Edited 2 times in total.

Reply 1 of 11, by majestyk

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Damaged soldering points at the keyboard connector come to mind.
The keyboard controller would be a possible culprit, too. It´s integrated in the super-io here.
I would carefully check the 5 soldering points at the kb-connector (on the downside) and around the super-io with a good magnifying glass before replacing any components.

Reply 2 of 11, by BurnedPinguin

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I resoldered the keyboard connector. Still no. The super io is what chip?

Reply 3 of 11, by majestyk

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It´s the one on the right of the middle PCI-slot

Reply 4 of 11, by BurnedPinguin

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Ok yeah that one has some visible corrosion on it after looking at it with a magnifying glass. Will clean that and report if it works, thank you!

Reply 5 of 11, by quicknick

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Can't find a datasheet, but AFAIK the LG/GoldStar Prime chip doesn't include a keyboard controller.

The M1487 southbridge does include a KBC, and while it can be configured to work with an external one I think in this case the internal one is employed. Pin 5 is KBCLK, pin 6 is KBDATA so check if you have continuity from these to the corresponding pins of the KB connector.

Reply 6 of 11, by BurnedPinguin

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Now that I look at it, all of the surface mount chips have corrosion on some pins. So I will clean that once I get hold of magic liquid (isopropyl alcohol) that does that (or I might just use vinegar or baking soda but I don't know if this works well)

Reply 7 of 11, by Zerthimon

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Does the MB have a key-lock connector ? Have you tried closing/opening it ?

Reply 8 of 11, by BurnedPinguin

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The corrosion on the SMD chips was not the issue. Also a bump. Quicknick, I have checked the keyboard connector, all pins have continuity.

Reply 9 of 11, by quicknick

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With keyboard plugged, check if you have +5V at the connector. Sometimes the fuse or an inductor fails to a high-resistance state, and voltage to the keyboard port drops below what the keyboard needs for proper operation.

Reply 10 of 11, by BurnedPinguin

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I will try that and report the results.

Reply 11 of 11, by B_Cik

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I haven't figured out the best place to ask this question.
I am trying to run a program using a special keyboard that connects through PS2. This keyboard has lights that need direction from the computer to light up. I have the program running and all keyboard functions work, but the lights do not come on when they are supposed to.
Do I need a setting to send an output through the ps2? I have also connected through USB as well with the same results.

Many a times you have seen that your desktop pc reports a keyboard error “Keyboard Interface Error”press F1 to resume during BIOS boot up.This problem is related to the two PS/2 ports situated on the back of the desktop computer for mouse and keyboard.The system delivers the “Keyboard Interface Error”because it is unable to find any PS/2 keyboard on the motherboard.However when you connect a USB keyboard then it will work but you will still see this keyboard error during bios bootup.So,in this tutorial I will show how I realized and fixed the keyboard interface error for PS/2 port.

Basic Terms Used
1.PS/2 Port
2.ATX Power Supply
3.AT/ATX/uATX/EPS are form factor specification of the motherboard.We buy power supply according to this form factor.For example I will buy uATX power supply for a motherboard having uATX form factor.
4.uATX stands for micro ATX.

How To Fix Keyboard Interface Error
The only solid reason that I found which is responsible for this problem is a low power ATX power supply which is incapable of providing sufficient power to the motherboard to function properly.I was using a 200W (W=Watts) power supply on a 400W ASUS motherboard and a 500W GIGABYTE G41-MTS2.This 200W ATX SMPS is not sufficient for my 400W ASUS P5KPL-VM/Sand 500W GIGABYTE G41-MTS2 motherboard.That’s why both the motherboards are power hungry since 4 years that’s why I am getting this keyboard error.Now I explain it in detail starting with checking power supply.

Check Computer Power Supply
A computer motherboardneeds enough power to run without any problems.For this you need to install a power supply with correct wattage.Motherboards have different form factors like ATX,micro ATX,AT,EPS etc.Mine is micro ATX which uses a 24 pin main power connector and a 12V 4 pin CPU power connector.Check the form factor of your motherboard whether it is AT,ATX,micro ATX(uATX) or EPS before buying a new power supply.Almost every motherboard today has ATX form factor.Check your motherboards’ manual for this.

24 pin atx power connector

Every motherboard manufacturer sets an optimal power limit in Watts for the motherboard which will be enough at which it can run without being power hungry and all its ports receive enough power.A motherboard has 2 dedicated power sources one is the 24 pin ATX power connector which supplies power to rest of the board except the cpu and a 4 pin 12V dedicated power connector for cpu.These two connectors supply the overall current to the motherboard to run at its full.

It is crucial that you check your desktop computer’s motherboard manual for its power requirement and check whether it matches with the power supply installed in your pc.Today desktop computers require at least 350W ATX power supply to operate without malfunctioning.I have GIGABYTE G41-MTS2 and its power requirement is 500W which means I need to install an ATX power supply which have a power output of 500W.At this power I can use all the internal ports and external ports of my pc without any problem.But this motherboard was running on a 200W ATX SMPS with a 20 pin ATX connector and 2 pins are left unused which is not sufficient power to run this motherboard at its full capacity.

Why I Was Getting Keyboard Interface Error
I was getting keyboard interface error due to low power ATX SMPS.This 200W power supply is unable to provide enough current to all the ports and expansion slots of the motherboard.Due to very low power current in the PS/2 ports the system was unable to find the keyboard because the PS/2 port was not working due to very low current in it.But when I used a USB keyboard it worked fine because all USB ports are getting enough power to operate.Voltage at USB end is 5V DC.Look at the PS/2 pinout diagram.


The pin number 4 was not getting enough power to operate due to a weak power supply.

How I Fixed The Keyboard/Interface Error
Firstly I would say if you are running a 400W motherboard on a 200W ATX power supply then you are surely going to encounter this problem.Not only this problem but other internal and external ports may malfunction due to low current.I strongly recommend to upgrade the power supply of your desktop pc according to the motherboard’s form factor and power requirements for correct operation.Check the manual for correct information about motherboard power requirements.

WARNING: Do not open the motherboard if you do not know anything about it because you can get an electric shock and never open the cabinet cover while the system is connected to AC power outlet and computer is running.It is hazardous.

After I realized that the power supply installed in my desktop is incapable for providing sufficient power to the motherboard then I removed some of the peripherals like DVD RAM drive and floppy drive because these two drives are drawing power for no use and are wasting it and I don’t use them more.So I removed their power and data connectors while the system is off and is not connected to AC power outlet.

I connected the power cord and restarted the pc,now it is running with only a mouse and a keyboard.What I see during bios bootup that the keyboard interface error vanished and the PS/2 ports came back to life and are working properly with a PS/2 keyboard because the motherboard is now getting enough power for itself to operate and the power supply is not under heavy load due to a number a devices connected to it,as I already removed the DVD drive and floppy drive.Now the keyboard error doesn’t show up in bios and PS/2 ports works fine.But I will have to upgrade the power supply to at least 400W.

If you are getting keyboard interface error then this might the case with you.However it is not necessary that you may face the same symptom as I am facing but I will strongly recommend you to check for this low power ATX/uATX/EPS power supply symptom before any other.You can follow these tips to fix this keyboard error.

  • The very first and the most important step is to check the ATX/uATX/EPS power supply.It should be at least 350W or more.check your computer’s motherboard manual for correct wattage specification.The power rating of power supply is written on their top cover.
  • If you find that your ATX/uATX/EPS power supply is incapable of providing enough power then try detaching the DVD drives,floppy drives or any other device connected to it for a short time to ensure that the motherboard doesn’t have any problem.If the motherboard is OK then this keyboard error will vanish on next boot up after you removed the two drives because now the motherboard will get enough power.Make sure to remove the power cord from AC power outlet  before opening the cabinet cover and touching the motherboard otherwise you will get an electric shock and motherboard will get a short circuit and may even catch fire.Be careful about this.
  • If possible then upgrade the power supply according to the motherboard’s power specification.A 200W power supply is too low for todays desktop computer.The minimum requirements is 350W.

Some Other Reasons And Misconceptions About Keyboard Interface Error

  • PS/2 Solder Joints Are Loose : Most experts say that the keyboard interface error can occur due to loose PS/2 port solder joints on motherboard.But this is not completely true if your motherboard is of trusted brand like ASUS,Intel or Gigabyte.I checked the solder joints of the PS/2 port and found them okay.These solder joints are created by automatic machines not by human hands and lasts till the life of the motherboard.They won’t get loose on their own.This a very rare case in which solder joints get loose.However if your pc’s power supply is okay then you can take the help of a hardware expert to check the solder joints.
  • Faulty I/O Microcontroller Chip : Most experts also say that keyboard interface error can also occur due to a failed I/O microcontroller chip on the motherboard.This chip is responsible for controlling the input from keyboard and mouse.If this chip fails or burns then your desktop pc will not accept any input even from USB mouse or keyboard.So this is also not true the I/O controller chip has failed if the USB mouse and keyboard works on your desktop pc.
  • No Keyboard Drivers Installed : You don’t need to install any keyboard driver on a windows pc.The driver will be automatically installed when you connect a PS/2 keyboard to the motherboard.

Final Resolution
The keyboard error occurs mostly due to a low power supply which can’t provide enough power to motherboard to operate properly.The PS/2 port requires exactly 5 Volts.If it gets low power then port will malfunction.I upgraded the power supply unit to 400W according to motherboard power specification and uATX form factor.Now both PS/2 portsare working. But also it is not necessary that this is them same case that applies to your motherboard, your computer's may have other hardware problems. So get it checked before buying a new power supply. Also running a computer motherboard on a low power supply will definitely cause it to malfunction.

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Keyboard /interface error - apologise

  1. 27-12-2007, 06:44 PM#1

  2. 27-12-2007, 06:55 PM#2
    Computer Technician wainuitech's Avatar
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    Default Re: Keyboard/interface Error, Help?

    Try removing the Keyboard, blow out the connection / plug, just in case there is any rubbish / dust in them. Then reset the BIOS back to default settings, someplace in the BIOS settings on the main screen will be what key to press. See if that helps.

    Just to clear up - is the keyboard you are having problems with the wireless or a PS2 ?

    Also have you tried another PS2 Keyboard ?
    Last edited by wainuitech; 27-12-2007 at 06:57 PM.

  3. 27-12-2007, 07:00 PM#3

  4. 27-12-2007, 07:03 PM#4
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    Default Re: Keyboard/interface Error, Help?

    If you are able, try a standard PS2 keyboard. Usually I have found you need a PS2 to repair a wireless if they play up.

    Resetting the BIOS may also fix it, but remember to set up USB keyboard support, ususally some place like onboard Pref's Location

  5. 27-12-2007, 07:08 PM#5

  6. 27-12-2007, 07:20 PM#6

  7. 27-12-2007, 07:21 PM#7
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    Default Re: Keyboard/interface Error, Help?

    Could be out of range possibly, try moving it to where you would usually be in front of the PC, or check the batteries to make sure they have not gone / going flat.

  8. 27-12-2007, 07:24 PM#8

  9. 27-12-2007, 07:28 PM#9
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    Default Re: Keyboard/interface Error, Help?

    If they were going flat then it may but veryyyyyy slow with lots of lag, I've seen spyware take out a wireless keyboard on several occasions. Needing a wired one to repair the system.

    Personally I'd change the batteries and see if it makes any difference, if not then it may also be the wireless softwares gone "A Bit Funny", reinstalling it may fix it.
    My media center PC with wireless Keyboard/mouse has a range of around 5 mtrs, when its batteries start to go flat they drop quick, the range goes from the other side of the room on the couch ( 4 mtrs) to 1/2 mtr in a matter of 10 minutes.
    Last edited by wainuitech; 27-12-2007 at 07:31 PM.

  10. 27-12-2007, 07:33 PM#10

Read these next...

hello,

i am having the error : keyboard/interface error press f1 to resume

ps2 keyboard and mouse is not working, i have checked with known working ps2 KB  and mouse but the error came,

i checked with other SMPS, i didn't find any error on the screen but still the ps2 KB , Mouse is not working.

then i checked with USB keyboard mouse and with old SMPS , it gave me error but it worked.

can anyone tell me how to fix this error ?

  • Bad motherboard.

    Was this post helpful?thumb_upthumb_down
  • 2nd on the bad motherboard.

    Either the keyboard controller is bad or its fuse is blown.

    This kind of thing used to be fairly common due to the fact that PS2 keyboards and mice have to be plugged in when the system is powered on and users were notorious after USB appeared on the scene for just plugging and unplugging their PS2 keyboards/mice when they had a problem.

  • USB is working so you just want to get that error to stop, right?  Check in BIOS to see if there is an option to turn off the notification of error on keyboard.  Not all of them have it, but it's worth looking.

    Was this post helpful?thumb_upthumb_down
  • i am not finding any option by which error can be removed.

  • * in BIOS

    Was this post helpful?thumb_upthumb_down
  • So from the sounds of it you may have two options; 1) replacing the motherboard like has been mentioned or 2) putting up with the error message and using a USB keyboard

  • want to ask for knowledge : how this error came ? i was running pagemaker and MSoffice files in this PC, what is cause behind it ?

  • Well, one of the most common causes is unplugging (or plugging in) a PS/2 device while power is on.  But, like anything else in this world, sometimes things just break.

  • It is not related to usage of any particular software as it is h/w issue. Mobo issues can come anytime.

    In bios search for Halt at no errors and select that ..maybe it can help u.

  • I searched for Halt option and tried with all sub-options like  halt all errors, all but keyboard and no error, still error is coming.

  • now the error is coming with USB KB also

  • You will just have to live with the error if you cannot disable the warnings in the BIOS.

  • %uFEFFWe have landed the konsburg mcu 8625master unit for repair,but the display appeared to be blank at that time.Then we connected with the local monitor in the office,we concluded the hard dick to be corrupt because the pcb above heats when the hard disk gets connected,due to which the display appears to be blank.Then furthur we tried with the data recovery but it was't possible,then we carried out with second hand unit,but the mother board of both the units were different having a flash drive of only 128mb but still we adjusted these 2units on the vessel but the result was null since the card of the master unit seem to be corrupt and with out keyboard error.On same connection we adjusted(ecr side)jar which supplied only 24V and started working on monitor conection but showed some error this error is still to be unknown (as to why)if we connect the the other unit on same connection the key board error is seen

  • We have facing problem of disk error message non system disk Disk error and replace disk ,

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    We have facing problem of disk error message non system disk Disk error and replace disk ,

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First post, by BurnedPinguin

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Hi vogons, I am having an issue with a "PCI486 V1-HJ3" 486 motherboard, I saw a post about it on here but it didn't help much. Every time it turns on, it gives me a keyboard Interface error, and the 3 lock lights on the keyboard flash 2 times a second, non-stop. Things I have tried so far are:
• Replace CMOS battery
• Reseat BIOS chip
• Different ram
• Remove the socketed cache
• 2 different, known working keyboards (tested on other systems)
• Resolder keyboard connector
• Remove corrosion from SMD chips
The motherboard has an AMD-X5 133adw, aka 5x86-p75. 2x8mb edo sticks (have tried 1x16 fpm stick), and 256k real, socketed cache. I have tried multiple graphics cards too. The bios string is: "41-C101-428027-00101111-101094-ALI87/89-U" A picture of the very motherboard follows. Any help is appreciated, and thank you for your time!

Last edited by BurnedPinguin on 2021-01-21, 20:33. Edited 2 times in total.

Reply 1 of 11, by majestyk

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Damaged soldering points at the keyboard connector come to mind.
The keyboard controller would be a possible culprit, too. It´s integrated in the super-io here.
I would carefully check the 5 soldering points at the kb-connector (on the downside) and around the super-io with a good magnifying glass before replacing any components.

Reply 2 of 11, by BurnedPinguin

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I resoldered the keyboard connector. Still no. The super io is what chip?

Reply 3 of 11, by majestyk

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It´s the one on the right of the middle PCI-slot

Reply 4 of 11, by BurnedPinguin

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Ok yeah that one has some visible corrosion on it after looking at it with a magnifying glass. Will clean that and report if it works, thank you!

Reply 5 of 11, by quicknick

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Can't find a datasheet, but AFAIK the LG/GoldStar Prime chip doesn't include a keyboard controller.

The M1487 southbridge does include a KBC, and while it can be configured to work with an external one I think in this case the internal one is employed. Pin 5 is KBCLK, pin 6 is KBDATA so check if you have continuity from these to the corresponding pins of the KB connector.

Reply 6 of 11, by BurnedPinguin

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Now that I look at it, all of the surface mount chips have corrosion on some pins. So I will clean that once I get hold of magic liquid (isopropyl alcohol) that does that (or I might just use vinegar or baking soda but I don't know if this works well)

Reply 7 of 11, by Zerthimon

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Does the MB have a key-lock connector ? Have you tried closing/opening it ?

Reply 8 of 11, by BurnedPinguin

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The corrosion on the SMD chips was not the issue. Also a bump. Quicknick, I have checked the keyboard connector, all pins have continuity.

Reply 9 of 11, by quicknick

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With keyboard plugged, check if you have +5V at the connector. Sometimes the fuse or an inductor fails to a high-resistance state, and voltage to the keyboard port drops below what the keyboard needs for proper operation.

Reply 10 of 11, by BurnedPinguin

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I will try that and report the results.

Reply 11 of 11, by B_Cik

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I haven't figured out the best place to ask this question.
I am trying to run a program using a special keyboard that connects through PS2. This keyboard has lights that need direction from the computer to light up. I have the program running and all keyboard functions work, but the lights do not come on when they are supposed to.
Do I need a setting to send an output through the ps2? I have also connected through USB as well with the same results.

How do I fix keyboard interface error?

Some times you have seen that your desktop pc reports a keyboard error “Keyboard Interface Error” press F1 to resume during BIOS boot up. This problem is related to the two PS/2 ports situated on the back of the desktop computer for mouse and keyboard.

What to do if keyboard is not working in BIOS?

Once in the BIOS, you want to be looking for and option in there that says ‘USB legacy devices’, make sure it is enabled. Save the settings in the BIOS, and exit. After that, any USB port the key board is connected to should allow you to use the keys, to access the BIOS or Windows menus when booting if pressed.

How do I disable keyboard errors in BIOS?

Press the “Left” cursor key to navigate to the “Main” menu header if not already active. Press the “Down” cursor key to scroll down to the “Halt On” or “Halt On Errors” option, then press “Enter.”

How do I fix F1 on my resume?

Fix Press F1 Key to Start Windows Issue

  1. Go to your BIOS and load default settings.
  2. If you don’t have a floppy drive then disable the Floppy Mode option in BIOS.
  3. Look for the option “Halt On” and set it to “No Error”.
  4. Save the settings and exit from BIOS.

Can’t use keyboard in Windows Boot Manager?

2 Answers

  1. Reboot pc.
  2. Enter BIOS.
  3. This step may vary in different BIOS versions. In my case the PC had a Gigabyte motherboard: Select Interface of Integrated Peripherals from the main BIOS menu and locate the USB Keyboard Support option and set it to Enabled it.

How do I enable USB keyboard in BIOS?

To enable USB in older operating systems, select “USB Legacy Support,” “USB Keyboard Support” or similar option and change the setting to “Enabled.” BIOS setup varies from motherboard to motherboard. Review the documentation that came with your computer if you have a difficult time navigating the BIOS.

How do I disable HP keyboard in BIOS?

How to temporarily disable laptop keyboard

  1. Head into your Start Menu, and type in Device Manager.
  2. Open up the Device Manager and find your way to Keyboards and hit the arrow to the left of it.
  3. Here you will be able to find your laptop’s keyboard. Right click on it and hit ‘Uninstall’

How do I bypass strike F1 key to continue?

Resolution

  1. Press the “F2” key to enter system setup.
  2. Arrow down to “F1/F2 Prompt on Error”
  3. Select “Disable”
  4. Press
  5. Select “Exit and Save Changes” and press

How do you fix F1?

How to fix F1: 5 key things the bosses need to do to make F1 great again

  1. Make the cars lighter and more ferocious.
  2. Add a sprint race to the Grand prix weekend.
  3. Distribute the money more fairly.
  4. Bring back tyres that allow drivers to push hard.
  5. Stop people talking the sport down.

Why do I get a keyboard error when I start my computer?

On start up, I get an error message “keyboard error” . This has been happening about 50 % of the time randomly since I purchased the computer in June 2017. I contacted HP customer support and they were not able to correct the problem. This does not appear to compromise the computer’s performance, but it is a nuisance.

What to do if your keyboard won’t boot?

Request you boot the computer to the desktop. Reseat the batteries on the keyboard and mouse or try a new set of batteries and check. If the issue persists, please contact our phone support for the service options available. Keep me posted.

Why is my mouse and keyboard not working?

The mouse lights up for a second but quickly goes black. I did a hard reset and “Restore Default Settings” per forum results but this didn’t help. I also tried several 2.0 and 3.0 USB ports and confirmed that the wired mouse and keyboard I’m using work on a different computer.

What is the problem with my hp keyboard?

Try the suspect HP keyboard on a different PC if possible. Try the HP keyboard or another keyboard using different USB ports on your PC. Try other USB 2.0 and USB 3.0 ports. There is either something wrong with the keyboard or something wrong with USB on the motherboard.

Keyboard interface error message

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Started by Basscarver , Jul 22 2017 09:13 AM


9 replies to this topic

#1 Basscarver

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Posted 22 July 2017 - 09:13 AM

I am using Windows 10 and I have a logitech K120 keyboard. Just recently I get a message during start up that there is a keyboard interface error, press F1 to continue. It works fine after I press F1. Could this be the USB connection ? Or is it time for a new keyboard ?



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#2 mikey11

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Posted 22 July 2017 - 09:15 AM

if it is a wireless keyboard try replacing your batteries



#3 Basscarver

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Posted 22 July 2017 - 09:21 AM

This model is wired. Thanks for your reply.



#4 britechguy

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Posted 22 July 2017 - 10:56 AM

I'd say it could be either a USB port problem, a keyboard problem, or (very unlikely) both.

It's easy enough to test out the USB port theory. Move it to another port and see if the problem persists. If it does then it is most likely some subtle thing starting to go wonky with the keyboard itself.

Brian  AKA  Bri the Tech Guy (website in my user profile) - Windows 10 Pro, 64-Bit 
    A lot of what appears to be progress is just so much technological rococo.
            ~ Bill Gray


#5 malwaredpc

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#6 Basscarver

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Posted 24 July 2017 - 12:58 PM

I installed a new keyboard and pluged into a different USB port and I still get the keyboard interface error message during start up. :smash: 



#7 malwaredpc

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Posted 24 July 2017 - 01:35 PM

As I said, you can change that alarm in the BIOS settings.

 

Are you sure it says the problem is the keyboard... Maybe it is telling that your Hard Drive WILL fail, press F1 to resume.


Edited by malwaredpc, 24 July 2017 - 01:36 PM.


#8 Basscarver

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Posted 24 July 2017 - 01:46 PM

The message says keyboard interface error. Everything is working fine I don't see any problem at all with this computer.



#9 malwaredpc

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Posted 16 January 2019 - 07:30 AM

There is a setting in BIOS called Keyboard Error Reporting that you can disable. I can only confirm this on a fujitsu computer though, but it probably exists in other forms on other brands aswell.

 

BIOS > Boot > Keyboard Error Reporting[Disabled]






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Many a times you have seen that your desktop pc reports a keyboard error “Keyboard Interface Error”press F1 to resume during BIOS boot up.This problem is related to the two PS/2 ports situated on the back of the desktop computer for mouse and keyboard.The system delivers the “Keyboard Interface Error”because it is unable to find any PS/2 keyboard on the motherboard.However when you connect a USB keyboard then it will work but you will still see this keyboard error during bios bootup.So,in this tutorial I will show how I realized and fixed the keyboard interface error for PS/2 port.

Basic Terms Used
1.PS/2 Port
2.ATX Power Supply
3.AT/ATX/uATX/EPS are form factor specification of the motherboard.We buy power supply according to this form factor.For example I will buy uATX power supply for a motherboard having uATX form factor.
4.uATX stands for micro ATX.

How To Fix Keyboard Interface Error
The only solid reason that I found which is responsible for this problem is a low power ATX power supply which is incapable of providing sufficient power to the motherboard to function properly.I was using a 200W (W=Watts) power supply on a 400W ASUS motherboard and a 500W GIGABYTE G41-MTS2.This 200W ATX SMPS is not sufficient for my 400W ASUS P5KPL-VM/Sand 500W GIGABYTE G41-MTS2 motherboard.That’s why both the motherboards are power hungry since 4 years that’s why I am getting this keyboard error.Now I explain it in detail starting with checking power supply.

Check Computer Power Supply
A computer motherboardneeds enough power to run without any problems.For this you need to install a power supply with correct wattage.Motherboards have different form factors like ATX,micro ATX,AT,EPS etc.Mine is micro ATX which uses a 24 pin main power connector and a 12V 4 pin CPU power connector.Check the form factor of your motherboard whether it is AT,ATX,micro ATX(uATX) or EPS before buying a new power supply.Almost every motherboard today has ATX form factor.Check your motherboards’ manual for this.

24 pin atx power connector

Every motherboard manufacturer sets an optimal power limit in Watts for the motherboard which will be enough at which it can run without being power hungry and all its ports receive enough power.A motherboard has 2 dedicated power sources one is the 24 pin ATX power connector which supplies power to rest of the board except the cpu and a 4 pin 12V dedicated power connector for cpu.These two connectors supply the overall current to the motherboard to run at its full.

It is crucial that you check your desktop computer’s motherboard manual for its power requirement and check whether it matches with the power supply installed in your pc.Today desktop computers require at least 350W ATX power supply to operate without malfunctioning.I have GIGABYTE G41-MTS2 and its power requirement is 500W which means I need to install an ATX power supply which have a power output of 500W.At this power I can use all the internal ports and external ports of my pc without any problem.But this motherboard was running on a 200W ATX SMPS with a 20 pin ATX connector and 2 pins are left unused which is not sufficient power to run this motherboard at its full capacity.

Why I Was Getting Keyboard Interface Error
I was getting keyboard interface error due to low power ATX SMPS.This 200W power supply is unable to provide enough current to all the ports and expansion slots of the motherboard.Due to very low power current in the PS/2 ports the system was unable to find the keyboard because the PS/2 port was not working due to very low current in it.But when I used a USB keyboard it worked fine because all USB ports are getting enough power to operate.Voltage at USB end is 5V DC.Look at the PS/2 pinout diagram.


The pin number 4 was not getting enough power to operate due to a weak power supply.

How I Fixed The Keyboard/Interface Error
Firstly I would say if you are running a 400W motherboard on a 200W ATX power supply then you are surely going to encounter this problem.Not only this problem but other internal and external ports may malfunction due to low current.I strongly recommend to upgrade the power supply of your desktop pc according to the motherboard’s form factor and power requirements for correct operation.Check the manual for correct information about motherboard power requirements.

WARNING: Do not open the motherboard if you do not know anything about it because you can get an electric shock and never open the cabinet cover while the system is connected to AC power outlet and computer is running.It is hazardous.

After I realized that the power supply installed in my desktop is incapable for providing sufficient power to the motherboard then I removed some of the peripherals like DVD RAM drive and floppy drive because these two drives are drawing power for no use and are wasting it and I don’t use them more.So I removed their power and data connectors while the system is off and is not connected to AC power outlet.

I connected the power cord and restarted the pc,now it is running with only a mouse and a keyboard.What I see during bios bootup that the keyboard interface error vanished and the PS/2 ports came back to life and are working properly with a PS/2 keyboard because the motherboard is now getting enough power for itself to operate and the power supply is not under heavy load due to a number a devices connected to it,as I already removed the DVD drive and floppy drive.Now the keyboard error doesn’t show up in bios and PS/2 ports works fine.But I will have to upgrade the power supply to at least 400W.

If you are getting keyboard interface error then this might the case with you.However it is not necessary that you may face the same symptom as I am facing but I will strongly recommend you to check for this low power ATX/uATX/EPS power supply symptom before any other.You can follow these tips to fix this keyboard error.

  • The very first and the most important step is to check the ATX/uATX/EPS power supply.It should be at least 350W or more.check your computer’s motherboard manual for correct wattage specification.The power rating of power supply is written on their top cover.
  • If you find that your ATX/uATX/EPS power supply is incapable of providing enough power then try detaching the DVD drives,floppy drives or any other device connected to it for a short time to ensure that the motherboard doesn’t have any problem.If the motherboard is OK then this keyboard error will vanish on next boot up after you removed the two drives because now the motherboard will get enough power.Make sure to remove the power cord from AC power outlet  before opening the cabinet cover and touching the motherboard otherwise you will get an electric shock and motherboard will get a short circuit and may even catch fire.Be careful about this.
  • If possible then upgrade the power supply according to the motherboard’s power specification.A 200W power supply is too low for todays desktop computer.The minimum requirements is 350W.

Some Other Reasons And Misconceptions About Keyboard Interface Error

  • PS/2 Solder Joints Are Loose : Most experts say that the keyboard interface error can occur due to loose PS/2 port solder joints on motherboard.But this is not completely true if your motherboard is of trusted brand like ASUS,Intel or Gigabyte.I checked the solder joints of the PS/2 port and found them okay.These solder joints are created by automatic machines not by human hands and lasts till the life of the motherboard.They won’t get loose on their own.This a very rare case in which solder joints get loose.However if your pc’s power supply is okay then you can take the help of a hardware expert to check the solder joints.
  • Faulty I/O Microcontroller Chip : Most experts also say that keyboard interface error can also occur due to a failed I/O microcontroller chip on the motherboard.This chip is responsible for controlling the input from keyboard and mouse.If this chip fails or burns then your desktop pc will not accept any input even from USB mouse or keyboard.So this is also not true the I/O controller chip has failed if the USB mouse and keyboard works on your desktop pc.
  • No Keyboard Drivers Installed : You don’t need to install any keyboard driver on a windows pc.The driver will be automatically installed when you connect a PS/2 keyboard to the motherboard.

Final Resolution
The keyboard error occurs mostly due to a low power supply which can’t provide enough power to motherboard to operate properly.The PS/2 port requires exactly 5 Volts.If it gets low power then port will malfunction.I upgraded the power supply unit to 400W according to motherboard power specification and uATX form factor.Now both PS/2 portsare working. But also it is not necessary that this is them same case that applies to your motherboard, your computer's may have other hardware problems. So get it checked before buying a new power supply. Also running a computer motherboard on a low power supply will definitely cause it to malfunction.

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keyboard /interface error

Apologise, but: Keyboard /interface error

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Keyboard /interface error

Keyboard interface error message

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Started by BasscarverJul 22 2017 09:13 AM


9 replies to this topic

#1 Basscarver

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Posted 22 July 2017 - 09:13 AM

I am using Windows 10 and I have a logitech K120 keyboard. Just recently I get a message during start up that there is a keyboard interface error, press F1 to continue, keyboard /interface error. It works fine after I press F1, keyboard /interface error. Could this be the USB connection ? Or is it time for a new keyboard ?



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#2 mikey11

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Posted 22 July 2017 - 09:15 AM

if it is a wireless keyboard try replacing your batteries



#3 Basscarver

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Posted 22 July 2017 - 09:21 AM

This model is wired. Thanks for your reply.



#4 britechguy

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Posted 22 July 2017 - 10:56 AM

I'd say it could be either a USB port problem, a keyboard problem, keyboard /interface error, or (very unlikely) both.

It's easy enough to test out the USB port theory. Move it to another port and see if the problem persists. If it does then it keyboard /interface error most likely some subtle thing starting to go wonky with the keyboard itself.

Brian  AKA  Bri the Tech Guy (website in my user profile) - Windows 10 Pro, 64-Bit 
    A lot of what appears to be progress is just so much technological rococo.
            ~ Bill Gray


#5 malwaredpc

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#6 Basscarver

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Posted 24 July 2017 - 12:58 PM

I installed a new keyboard and pluged into a different USB port and I still get the keyboard interface error message during start up. :smash: 



#7 malwaredpc

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Posted 24 July 2017 - 01:35 PM

As I said, you can change that alarm in the BIOS settings.

 

Are you sure it says the problem is the keyboard., keyboard /interface error. Maybe it is telling that your Hard Drive WILL fail, press F1 to resume.


Edited by malwaredpc, 24 July 2017 - 01:36 PM.


#8 Basscarver

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Posted 24 July 2017 - 01:46 PM

The message says keyboard interface error. Everything is working fine I don't see any problem at all with this computer.



#9 malwaredpc

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#10 robertpaegelow

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Posted 16 January 2019 - 07:30 AM

There is a setting in BIOS called Keyboard Error Reporting that you can disable. I can only confirm this on a fujitsu computer though, but it probably exists in other forms on other brands aswell.

 

BIOS > Boot > Keyboard Error Reporting[Disabled]






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Hi vogons, I am having an issue with a "PCI486 V1-HJ3" 486 motherboard, I saw a post about it on here but it didn't help much. Every time it turns on, it gives me a keyboard Interface error, and the 3 lock lights on the keyboard flash 2 times a second, non-stop. Things I have tried so far are:
• Replace CMOS battery
• Reseat BIOS chip
• Different ram
• Remove the socketed cache
• 2 different, known working keyboards (tested on other systems)
• Resolder keyboard connector
• Remove corrosion from SMD chips
The motherboard has an AMD-X5 133adw, aka 5x86-p75. 2x8mb edo sticks (have tried 1x16 fpm stick), and 256k real, keyboard /interface error, socketed cache. I have tried multiple graphics cards too. The bios string is: "41-C101-428027-00101111-101094-ALI87/89-U" A picture of the very motherboard follows. Any help is appreciated, and thank you for your time!

Last edited by BurnedPinguin on 2021-01-21, 20:33. Edited 2 times in total.

Reply 1 of 11, by majestyk

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Damaged soldering points at the keyboard connector come to mind.
The keyboard controller would be a possible culprit, too. It´s integrated in the super-io here.
I would carefully check the 5 soldering points at the kb-connector (on the downside) and around the super-io with a good magnifying glass before replacing any components.

Reply 2 of 11, by BurnedPinguin

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I resoldered the keyboard connector. Still no. The super io is what chip?

Reply 3 of 11, by majestyk

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It´s the one on the right of the middle PCI-slot

Reply 4 of 11, by BurnedPinguin

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Ok yeah that one has some visible corrosion on it after looking at it with a magnifying glass. Will clean that and report if it works, thank you!

Reply 5 of 11, by quicknick

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Can't find a datasheet, but AFAIK the Sharks, terrors of the deep 2 Prime chip doesn't include a keyboard controller.

The M1487 southbridge does include a KBC, and while it can be configured to work with an external one I think in this case the internal one is employed. Pin 5 is KBCLK, pin 6 is KBDATA so check if you have continuity from these to the corresponding pins of the KB connector.

Reply 6 of 11, by BurnedPinguin

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Now that I look at it, all of the surface mount chips have corrosion on some pins. So I will clean that once I get hold of magic liquid (isopropyl alcohol) that does that keyboard /interface error I might just use vinegar or baking soda but I don't know if this works well)

Reply 7 of 11, by Zerthimon

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Does the MB have a key-lock connector ? Have you tried closing/opening it ?

Reply 8 of 11, by BurnedPinguin

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The corrosion on the SMD chips was not the issue. Also a bump. Quicknick, I have checked the keyboard connector, all pins have continuity.

Reply 9 of 11, by quicknick

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With keyboard plugged, keyboard /interface error, check if you have +5V at the connector. Sometimes the fuse or an inductor fails to a high-resistance state, and voltage to the keyboard port drops below what the keyboard needs for proper operation.

Reply 10 of 11, keyboard /interface error, by BurnedPinguin

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I will try that and report the results.

Reply 11 of 11, by B_Cik

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I haven't figured out the best place to ask keyboard /interface error question.
I am trying to run a program using a special keyboard that connects through PS2, keyboard /interface error. This keyboard has lights that need direction from the computer to light up. I have the program running and all keyboard functions work, but the lights do not come on when they are supposed to.
Do I need a setting to send an output through the ps2? I have also connected through USB as well with the same results.

Many a times you have seen that your desktop pc reports a keyboard error “Keyboard Interface Error”press F1 to resume during BIOS boot up.This problem is related to the two PS/2 ports situated on the back of the desktop computer for mouse and keyboard.The system delivers the “Keyboard Interface Error”because it is unable to find any PS/2 keyboard on the motherboard.However when you connect a USB keyboard then it will work but you will still see this keyboard error during bios bootup.So,in this tutorial I will show how I realized and fixed the keyboard interface error for PS/2 port.

Basic Terms Used
1.PS/2 Port
2.ATX Power Supply
3.AT/ATX/uATX/EPS are form factor specification of the motherboard.We buy power supply according to keyboard /interface error form factor.For example I will buy uATX power supply for a motherboard having uATX form factor.
4.uATX stands for micro ATX.

How To Fix Keyboard Interface Error
The only solid reason that I found which is responsible for this problem is a low power ATX power supply which is incapable of providing sufficient power to the motherboard to function properly.I was using a 200W (W=Watts) power supply on a 400W ASUS motherboard and a 500W GIGABYTE G41-MTS2.This 200W ATX SMPS is not sufficient for my 400W ASUS P5KPL-VM/Sand 500W GIGABYTE G41-MTS2 motherboard.That’s why both the motherboards are power hungry since 4 years that’s why I am getting this keyboard error.Now I explain it in detail starting with checking power supply.

Check Computer Power Supply
A computer motherboardneeds enough power to run without any problems.For this you need to keyboard /interface error a power supply with correct wattage.Motherboards have different form factors like ATX,micro ATX,AT,EPS etc.Mine is micro ATX which uses a 24 pin main power connector and a 12V 4 pin CPU power c3212 63 imei rebuild error the form factor of your motherboard whether it is AT,ATX,micro ATX(uATX) or EPS before buying a new power supply.Almost every motherboard today has ATX form factor.Check your motherboards’ manual for this.

24 pin atx power connector

Every motherboard manufacturer sets an optimal power limit in Watts for the motherboard which will be enough at which it can run without being power hungry and all its ports receive enough power.A motherboard has 2 dedicated power sources one is the 24 pin ATX power connector which supplies power to rest of the board except the cpu and a 4 pin 12V dedicated power connector for cpu.These two connectors supply the overall current to the motherboard to run at its full.

It is crucial that you check your desktop computer’s motherboard manual for its power requirement and check whether it matches with the power supply installed in your pc.Today desktop computers require at least 350W ATX power supply to operate without malfunctioning.I have GIGABYTE G41-MTS2 and its power requirement is 500W which means I need to install an ATX power supply which have a power output of 500W.At this power I can use all the internal ports and external ports of my pc without any problem.But this motherboard was running on a 200W ATX SMPS with a 20 pin ATX connector and 2 pins are left unused which is not sufficient power to run this motherboard at its full capacity.

Why I Was Getting Keyboard Interface Error
I was getting keyboard interface error due to low power ATX SMPS.This 200W power supply is unable to provide enough current to all the ports and expansion slots of the motherboard.Due to very low power current in the PS/2 ports the system was unable to find the keyboard because the PS/2 port was not working due to very low current in it.But when I used a USB keyboard it worked fine because all USB ports are getting enough power to operate.Voltage at USB end is 5V DC.Look at the PS/2 pinout diagram.


The pin number 4 was not getting enough power to operate due to a weak power supply.

How I Fixed The Keyboard /interface error Error
Firstly I would say if you are running a 400W motherboard on a 200W ATX power supply then you are surely going to encounter this problem.Not only this problem but other internal and external ports may malfunction due to low current.I strongly recommend to upgrade the power supply of your desktop pc according to the motherboard’s form factor and power requirements for correct operation.Check the manual for correct information about motherboard power requirements.

WARNING: Do not open the motherboard if you do not know anything about it because you can get an electric shock and never open the cabinet cover while the system is connected to AC power outlet and computer is keyboard /interface error is hazardous.

After I realized that the power supply installed in my desktop is incapable for providing sufficient power to the motherboard then I removed some of the peripherals like DVD RAM drive and floppy drive because these two drives are drawing power for no use and are wasting it and I don’t use them more.So I removed their power and data connectors while the system is off and is not connected to AC power outlet.

I connected the power cord and restarted the pc,now it is running with only a mouse and a keyboard.What I see during bios bootup that the keyboard interface error vanished and the PS/2 ports came back to life and are working properly with a PS/2 keyboard because the motherboard is now getting enough power for itself to operate and the power supply is not under heavy load due to a number a devices connected to it,as I already removed the DVD drive and floppy drive.Now the keyboard error doesn’t show up in bios and PS/2 ports works fine.But I will have to upgrade the power supply to at least 400W.

If you are getting keyboard interface error then this might the case with you.However it is not necessary that you may face the same symptom as I am facing but I will strongly recommend you to check for this low power ATX/uATX/EPS power supply symptom before any other.You can follow these tips to fix this keyboard error.

  • The very first and the most important step is to check the ATX/uATX/EPS power supply.It should be at least 350W or more.check your computer’s motherboard manual for correct wattage specification.The power rating of power supply is written on their top cover.
  • If you find that your ATX/uATX/EPS power supply is incapable of providing enough power then try detaching the DVD drives,floppy drives or any other device connected to it for a short time to ensure that the motherboard doesn’t have any problem.If the motherboard is OK then this keyboard error will vanish on next boot up after you removed the two drives because now the motherboard will get enough power.Make sure to remove the power cord from AC power outlet  before opening the cabinet cover and touching the motherboard otherwise you will get an electric shock and motherboard will get a short circuit and may even catch fire.Be careful about this.
  • If possible then upgrade the power supply according to the motherboard’s power specification.A 200W power supply is too low for todays desktop computer.The minimum requirements is 350W.

Some Other Reasons And Misconceptions About Keyboard Interface Error

  • PS/2 Solder Joints Are Loose : Most experts say that the keyboard interface error can occur due to loose PS/2 port solder joints on motherboard.But this is not completely true if your motherboard is of trusted brand like ASUS,Intel or Gigabyte.I checked the solder joints of the PS/2 port and found them okay.These solder joints are created by automatic machines not by human hands and lasts till the life of the motherboard.They won’t get loose on their own.This a very rare case in which solder joints get loose.However if your pc’s power supply is okay then you can take the help of a hardware expert to check the solder joints.
  • Faulty I/O Microcontroller Chip : Most experts also say that keyboard interface error can also occur due to a failed I/O microcontroller chip on the motherboard.This chip is responsible for controlling the input from keyboard and mouse.If this chip fails or burns then your desktop pc will not accept any input even from USB mouse or keyboard.So this is also not true the I/O controller chip has failed if the USB mouse and keyboard works on your desktop pc.
  • No Keyboard Drivers Installed : You don’t need to install any keyboard driver on a windows pc.The driver will be automatically installed when you connect a PS/2 keyboard to the motherboard.

Final Resolution
The keyboard error occurs mostly due to a low power supply which can’t provide enough power to motherboard to operate properly.The PS/2 port requires exactly 5 Volts.If it gets low power then port will malfunction.I upgraded the power supply unit to 400W according keyboard /interface error motherboard power specification and uATX form factor.Now both PS/2 portsare working. But also it is not necessary that this is them same case that applies to your motherboard, your computer's may have other hardware problems. So get it checked before buying a new power keyboard /interface error. Also running a computer motherboard on a low power supply will definitely cause it to malfunction.

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hello,

i am having the error : keyboard/interface error press f1 to resume

ps2 keyboard and mouse is not working, keyboard /interface error, i have checked with known working ps2 KB  and mouse but the error came,

i checked with other SMPS, i didn't find any error on the screen but still the ps2 KBMouse is not working.

then i checked with USB keyboard mouse and with old SMPSit gave me error but it worked.

can anyone tell me how to fix this error ?

  • Bad motherboard.

    Was this post helpful?thumb_upthumb_down
  • 2nd on the bad motherboard.

    Either the keyboard controller is bad or its fuse is blown.

    This kind of thing used to be fairly common due to the fact that PS2 keyboards and mice have to be plugged in when the system is powered on and users were notorious after USB appeared on the scene for just plugging and unplugging their PS2 keyboards/mice when they had a problem.

  • USB is working so you just want to get that 5.1.1 error 1600 to stop, right?  Check in BIOS to see if there is an option to turn off the notification of error on keyboard.  Not all of them have it, but it's worth looking.

    Was this post helpful?thumb_upthumb_down
  • i am not finding any option by which error keyboard /interface error be removed.

  • * keyboard /interface error BIOS

    Was this post helpful?thumb_upthumb_down
  • So from the sounds of it you may have two options; 1) replacing the motherboard like has been mentioned or 2) putting up with the error message and using a USB keyboard

  • want to ask for knowledge : how this error came ? i was running pagemaker and MSoffice files in this PC, what is cause behind it ?

  • Well, one of the most common causes is unplugging (or plugging in) a PS/2 device while power is on.  But, like anything else in this world, sometimes things just break.

  • It is not related to usage of any particular software as it is h/w issue. Mobo issues can come anytime.

    In bios search for Halt at no errors and select that .maybe it can help u.

  • I searched for Halt option and tried with all sub-options like  halt all errors, keyboard /interface error, all but keyboard and no error, still error is coming.

  • now the error is coming with USB KB also

  • You will just have to live with the error if you cannot disable the warnings in the BIOS.

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  1. 27-12-2007, 06:44 PM#1

  2. 27-12-2007, 06:55 PM#2
    Computer Technician wainuitech's Avatar
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    Default Re: Keyboard/interface Error, Help?

    Try removing the Keyboard, blow out the connection / plug, just in case there is any rubbish / dust in them. Then reset the BIOS back to default settings, someplace in the BIOS settings on the main screen will be what key to press. See if that helps.

    Just to clear up - is the keyboard you are having problems with the wireless or a PS2 ?

    Also have you tried another PS2 Keyboard ?
    Last edited by wainuitech; 27-12-2007 at 06:57 PM.

  3. 27-12-2007, 07:00 PM#3

  4. 27-12-2007, 07:03 PM#4
    Computer Technician wainuitech's Avatar
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    Default Re: Keyboard/interface Error, Help?

    If you are able, try a standard PS2 keyboard, keyboard /interface error. Usually Keyboard /interface error have found you need a Keyboard /interface error to repair a wireless if they play up.

    Resetting the BIOS may also fix it, but remember to set up USB keyboard support, keyboard /interface error, ususally some place like onboard Pref's Location

  5. 27-12-2007, 07:08 PM#5

  6. 27-12-2007, 07:20 PM#6

  7. 27-12-2007, 07:21 PM#7
    Computer Technician wainuitech's Avatar
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    Default Re: Keyboard/interface Error, Help?

    Could be out keyboard /interface error range possibly, try moving it to where you would usually be in front of the PC, or check the batteries to make sure they have not gone / going flat.

  8. 27-12-2007, 07:24 PM#8

  9. 27-12-2007, 07:28 PM#9
    Computer Technician wainuitech's Avatar
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    Default Re: Keyboard/interface Error, keyboard /interface error, Help?

    If they were going flat then it may but veryyyyyy slow with lots of lag, I've seen spyware take out a wireless keyboard on several occasions. Needing a wired one to repair the system, keyboard /interface error.

    Personally I'd change the batteries and see if it makes any difference, if not then it may also be the wireless softwares gone "A Bit Funny", reinstalling it may fix it.
    My media center PC with wireless Keyboard/mouse has a range of around 5 mtrs, when its batteries start to go flat they drop quick, the range goes from the other side of the room on the couch ( 4 mtrs) to 1/2 mtr in a matter of 10 minutes.
    keyboard /interface error Last edited by wainuitech; 27-12-2007 at 07:31 PM.

  10. 27-12-2007, 07:33 PM#10

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