IRQs in WinXP Pro...

[Burke]

Normally I'd just unplug the card and then plug it back in and Windows would reassign it to its own IRQ, but I have the main (that is, the one that's on the I/O panel) USB port sharing IRQ 16 with my Ti4200. I want the video card to have its own IRQ.

I've disabled the serial ports, the unused IDEs, extra onboard USB, etc. which helped get my other two PCI cards their own IRQ, but I just can't get these two to stop sharing. The BIOS supports manually assigning IRQs, but frankly I can't make heads-nor-tails of it. I'd rather just be able to go into the Device Manager and set it all myself.

Any way I can do it from within Windows?

EDIT:
I just tried uninstalling the NVIDIA drivers and then reinstalling the card and drivers, and it moved the Ti4200 to IRQ 12 until I installed the drivers; it then put the card back on IRQ 16, sharing with the USB again.

[YeOldeStonecat]

You may be stuck with that, unless in the BIOS somewhere, you can manually assign your video.

But you mention IRQ 16...APIC compliant BIOS I see....IRQ sharing isn't as bad in APIC, although I'm still wondering why it's sharing.

Your BIOS is the only way I can think of....has to be in there somewhere. What kind of mobo?

[Burke]

Originally posted by YeOldeStonecat
What kind of mobo?

ABIT BD7II-RAID. I know I can manually do it in the BIOS, but I'm skittish about messing something up really bad in there. Is there some general guide for accomplishing BIOS IRQ settings or the like?

[YeOldeStonecat]

Ahh, I had a BX440 RAID. Good board.

Well, if you aren't using them, I'd turn off the LPT parallel port (free's up IRQ 7), you mention you already got the two serial ports (IRQ 4 and 3), extra IDE....so you got most of it there.

Looking at their manual briefly, it looks like you can assign your video a specific IRQ

ftp://202.168.194.114/pub/download/fae/BD7II_BD7II-RAID_Eng_V100.pdf

[Burke]

I was thinking I'd have to go through the big list and set everything. I'll try the video IRQ when I get outta here in a few minutes. Thanks much for the help.