IRQ conflicts, need assistance...

[spool]

Hello everyone.
Looking for some help here. I'll dive into it. I have an ECS K7S5A Motherboard, 1.4GHz Thunderbird, 512MB SDRAM, 16MB ATI RAGE, Adaptec SCSI controller Card U160, IBM 9.1GB SCSI U160 Hardrive, Pioneer 16x SCSI CD-RW, Aopen 56K Modem, and a Echo Layla Audio Card -------- all with Windows 2000 Professional installed. My biggest concern is IRQ setup... I've tried disabling all possible IRQ's that are not need such as the ones for the onboard audio, midi/game controller, and LAN adapter. My setup on the board is as follows. AGP (ATI Card), 1st PCI free, 2nd PCI (SCSI card), 3rd PCI (Audio Card), 4th PCI (free), 5th PCI (modem).... I can't seem to get my Audio Card on its own designated IRQ. Here are my IRQ's:

IRQ Number Device

9 Microsoft ACPI-Compliant System

11 ATI Technologies Inc. RAGE P/M Mobility
AGP 2X

11 SiS 7001 PCI to USB Open Host Controller

11 SiS 7001 PCI to USB Open Host Controller

11 Adaptec AIC-7892 Ultra160/m PCI SCSI
Card

11 AOpen FM56-PM 56K Speakerphone PCI
Modem #2

11 Layla20 (WDM)

8 System CMOS/real time clock

13 Numeric data processor

12 Microsoft PS/2 Mouse

1 Standard 101/102-Key or Microsoft
Natural PS/2 Keyboard

6 Standard floppy disk controller

10 MPU-401 Compatible MIDI Device

14 Primary IDE Channel

15 Secondary IDE Channel

My SCSI card, Audio Card, AGP Card are all on IRQ 11. I've tried switching the cards around to various PCI slots, same results.... Any suggestions would be greatly appreciated. Thanks.

Chris

[Tron]

Hello i have seen the same IRQ11 thing with many new ahtlon boards.
But i guess that´s normal when using Windows 2000 auto IRQ configuration.
You culd try to turn ACPI off (BIOS)
but i have not tested it jet so it´s your risk for now...

See U\ \
\ \TRON

[spool]

Hey TRON.
The ECS doesn't have an ACPI option in bois...

thanks
chris

[Peter M]

IRQ conflicts, I'm sick and tired of this.

Again, folks, for the 20937459015239872346743rd time:

PCI AND AGP DEVICES SHARING INTERRUPTS IS NOT A CONFLICT.

Both the PCI and AGP specifications - from 1993 and 1998 respectively - _demand_ that all devices and their drivers be designed such that they can share their interrupt. A device that, in 2002, still doesn't get that elementary feature right should be returned - everything else will work just fine.

ACPI btw is always enabled in the latest boards - Microsoft doesn't certify mainboards Windows compatible anymore that allow the user to turn it off.

regards, Peter

[spool]

Ok Peter.
What do you mean by returned.
Is there anyway to change my IRQ settings so that all my cards are not sharing the same IRQ (11)..

Chris

[Peter M]

*sigh* You didn't get the point ... Your system works fine as it is, doesn't it?

And if one of your cards doesn't work on a shared interrupt, then it's not PCI compliant. Return it to the shop and buy something from a manufacturer who at some point in the past 9 years has read the published specifications on what they're doing.

regards, Peter

[spool]

No... My Audio Card has drops out, alot. I figure it was an IRQ thing. Because the system i had it in recently, pIII ASUS P2B Motherboard w/promise Utra100 controller card, the AGP and PCI IRQ where not sharing the same interupt. One was on 11, the other on 10...

chris

[Peter M]

Certainly not an interrupt latency issue ... I'd rather say it's a PCI bandwidth thing. Exactly when does the audio drop out? When using SCSI a lot? When online through that modem? Or when?

regards, Peter