Win2k ACPI and IRQ HELL

[efty]

During the summer I took my HD with me back to cyprus and used it on my sister's computer. I just noticed now that my Audio card, Raid controler, Graphics Card and PCI card sharring IRQ 11.
Here is detailed listing of the resource allocation.

IRQ Number Device
9 Microsoft ACPI-Compliant System
11 Matrox Marvel G200 AGP - English
11 Intel 82371AB/EB PCI to USB Universal Host Controller
11 3Com EtherLink 10/100 PCI TX NIC (3C905B-TX)
11 Creative AudioPCI (ES1370), SB PCI 64/128 (WDM)
11 HPT370A UDMA/ATA100 RAID Controller
8 System CMOS/real time clock
13 Numeric data processor
6 Standard floppy disk controller
4 Communications Port (COM1)
3 Communications Port (COM2)
12 PS/2 Compatible Mouse
1 Standard 101/102-Key or Microsoft Natural PS/2 Keyboard
14 Primary IDE Channel
15 Secondary IDE Channel

Is there a way (without reinstalling win2k) to change those allocations?

Thanks

Efty

[K6-III]

If its not giving you any problems, why change????

[omegaRED]

Dont worry about it ... I have my G400, Sound Card, HPT366 controller, modem and TV card (and PCI/USB bridge) sharing IRQ 11 ))

So ...... free beer on IRQ 11

[Indiana]

Wasn't that "free beer on IRQ 9"?

[Admiral]

@eftychios

Isn't it normal for all those cards to share one IRQ if you installed Win2k in ACPI mode and not as Standard PC ?

edit: I'm pretty curious myself how omega got them on 11 instead of 9

[omegaRED]

Yeah it was Indiana But looks like the party is on IRQ 11 on my machine

[DGhost]

iirc, its only Windows 9x where the IRQ's have to share the same IRQ as the ACPI Device... that being said i can't tell off hand because i'm using a dual proc box, and MPS 1.4 specifies the ability to have virtual IRQ's, so i have PCI devices on IRQ 10, 14 (yes, the onboard VIA ide controller is disabled), 16, 17, 18 and 19...

[Wombat]

Yeah, odd little buggers. My devices are in IRQs 12-19, and 23.

[Gurm]

It depends on whether your machine has an APIC on board, and what version it is.

Some systems put all the ACPI devices on the same "IRQ" (a misnomer in this case), others put them on high "IRQ"'s (again, a misnomer) such as 24, 88, or 101.

Regardless, if all your devices are ACPI compliant there is no problem here.

- Gurm