Low-Level PCI Support for PC -- Routing of Interrupts * * (c) int new); }; /* * Search 0xf -- 0xfffff for the PCI IRQ Routing Table. After POST, I get a 'PCI IRQ routing table error ". My mobo is. MSI K8T Neo-V (MS) w/latest BIOS (which is AMI) off the MSI. C] (Node cd), AE_AML_BUFFER_LIMIT ACPI *** Error: Method execution BAM/CAM PCI Bridge ACPI: PCI Interrupt Routing Table [\_SB_.C
youtube videoLecture 9: Interrupts
Irq routing table error - helpful(val <<4)):((x &0xf0) (1<< irq)& eisa_irq_mask)
I have a pci video card (ati rage mobility) that makes the BIOS generate a pci irq routing table error during POST. My motherboard does not have onboard video & I have no other video card. In another system, I have no problems with the card, so I know it's not the card itself.
windows 2k doesn't install unless I disable ACPI Hal manager (press F7 on install when it asks for F6 otherwise I get a BSOD telling me my BIOS is not ACPI compliant). When it does install, VgaSave activates (the failsafe driver when the normal driver has problems). sprers.eu says something about the BIOS did not send enough info to properly configure the device (I'm guessing the whole irq routing table error) which would mean BIOS did not configure the video card. I was told I need to lookfor a "pnp-os" setting in my BIOS setup but one could not be found. I also cannot locate a tool that "unhides" settings in the BIOS setup; my BIOS is AMI, I have only found one for Award (awdbedit).
windows xp x64 installs fine but video is crappy in the sense that scrolling a simple notepad window runs the utilization up to %. I'm guessing that means that DMA isn't being used for transfers to video memory?
linux (debian , sarge) installs fine but video is similar in performance to windows xp. lspci tells me pin A assigned to irq 0 (I'm guessing it's really a "null" instead of a '0', as irq 0 is the timer).
My next course of action is to use DOS debug to search for the routing table signature ('$PIR'), extract the table and analyze the data myself to see if I can find an inconsistencies. I'm familiar with x86 assembly language (almost made my own os), that is until I got a job doing web development & now (5 years later) it seems I've lost a lot of the knowledge I had pertaining to hardware & system architecture.
I'm willing to get really involved into tracking this problem down but does anyone have any info or tips/pointers about how to actually tackle the problem (if you've experienced it before)?
I guess my main areas of concern:
- finding an ami bios tool to modify the 'pnp-os' setting so that the bios is forced to configure the devices
- analyzing the irq routing table to see if it's 'to spec'
- anything else that'll make this card work
I actually ordered another card (agp), but the mailman left it under the mailbox (since it was too big to fit inside) and someone stole it.
Mon Oct 17, am
I am having the Exact same problem described here. Well not exact. I am putting together my new machine but am not stuck at this point. I get the PCI IRQ ROUTING TABLE ERROR  after removing the CMOS jumper. Then i see the error and can go to F1 for the setup or Irq routing table error for the default. I was able to install Win Xp before and I get there. I flashed the BIOS because the system was not recognizing my GB HD, and only saw GB. I had read that updating the BIOS would fix that. So I was finally able to do that, irq routing table error, and it said to reboot. I did, but nothing happens. Everything is running, but the monitor doesn't come on. Only when i reset the CMOS does it work. And only as above. Then I am right back to where I was. I have no way to Reflash the BIOS, because I cannot boot off a CD or floppy. I can only do the two things I have already mentioned. I tried moving the memory around, but I have no alternative memory to try.
I have a ASUS P4C Deluxe E
2 X Apacer ram
Samsung gig HD
WD 40 Gig HD error doctor crak both ATA.
ATI xt saphire pro
ATI tv wonder pro
Please help me!! I got the mobo for free so sending it back is not an option. It is new, and it worked fine when I first set it up prior to flashing BIOS.
Any help would be very very much appreciated. Thanks.