Another IRQ question

jmpatrick wrote on 10/11/2001, 9:13 AM
Greetings fellow Vegans,
I'm using VV with Win 2K, and recent IRQ discussions elsewhere on the board led me to investigate my IRQ situation further. I had understood that there was a maximum of 16 IRQ's on any system, yet when I pull up my IRQ settings in Device Manager, I show the following:

IRQ 16 (PCI) All-In-Wonder 128 Pro AGP
IRQ 16 (PCI) Linksys LINKT100 Fast Ethernet Adapter
IRQ 17 (PCI) Texas Instruments OHCI Compliant IEEE 1394 Adapter
IRQ 18 (PCI) HPT370 UDMA/ATA100 Raid Controller
IRQ 19 (PCI) M Audio Delta 1010

How is it possible that I can have IRQ's greater than 16?

Also, no matter what I do, I can't seem to stop the AGP Video Card from Sharing an IRQ with the Ethernet Adapter. I've tried moving the Ethernet Card to other available slots without luck.

jp

Comments

PatrickL wrote on 10/13/2001, 9:12 PM
Each time you move your AGP card you must reset auto detect PNP in your BIOS. And you are on the right track on moving around the slots, just make sure the AGP and Sound card are not next to each other in the end. Also some Compaq mobo's do not let you seperate your AGP and Sound IRQ.

It's only win9x that has 15 IRQ's. You have more IRQ's in 2000 and on but 98se is still the best all-around PC-based OS out there.
jmpatrick wrote on 10/13/2001, 11:49 PM
Actually, I've been moving the other cards around. There's only one AGP slot...so the display card stays put. As for IRQ's, How can I have more than 16 if they're wired directly to the pins on the CPU? Is it possible that the dual P3 processors are adding IRQ's?

I guess I'll try resetting the PNP as you suggest. Maybe that'll do it.

Thanks.

jp
jmpatrick wrote on 10/13/2001, 11:54 PM
It just occured to me that maybe the All-In-One card is the problem. It's got additional s-vhs and composite in's and out's that I don't use or need. Perhaps the IRQ supports those features? Is it normal for a standard AGP display adapter to require an IRQ?
HPV wrote on 10/14/2001, 4:45 AM
>>Is it normal for a standard AGP display adapter to require an IRQ?

Yes, but as said befor, Compaqs needs to share IRQ between video card and sound card. W2K does allocate IRQ's above 16. But it is just extra shared area beyond the 16 set IRQs. If that makes any sense ?

Craig H.
jmpatrick wrote on 10/14/2001, 8:48 AM
Thanks for the help. I'm using an Abit VP6 M.B., not a Compaq. If everything over 16 is shared...what am I sharing with, and how do I view the shared resources? Using System information, I see only the AGP/NIC share.

Thanks again,

jp
PatrickL wrote on 10/27/2001, 6:07 PM
Sorry for the delayed reply. Anything under your AGP card slot shares and IRQ with the Graphics card. I put my scsi burner there cos I don't use the burner as much as the NIC, soundcard, etc, and let the burner shared IRQ's with the AGP. Remember to reset in the bios as well.

And if you are not using your comm port (male version of monitor slot) disable it in the bios for a freed up IRQ