Marvel G200 and IRQ sharing.

[Trav]

Hey Guys.

Need some wisdom.
I've noticed that my AGP Marvel is sharing IRQ 11 with my SCSI controller.
I understand that the G200s dont like sharing IRQ's.
I tried changing the IRQ's of both of these from control panel/system/scsi/resources etc.. within windows 98, but it wouldn't let me do it.
I went into the bios of my Abit BX6 MB and made sure the Assign IRQ for VGA was enabled.
It was.
I set the IRQ assigning to manual,but it still wouldn't let me change the IRQ's.
Funny thing is, when I disabled assign irq for VGA, the scsi card cahnged it's IRQ to 10, but as soon as I enabled Assign IRQ for VGA it went back to 11 same as the G200.
All my PCI slots are full, and the SCSI card sits in the slot next to the AGP.
Anyone got any ideas how I can stop the G200 sharing it's IRQ?

Cheers.

Trav

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PII350, BX6, 128mb, DXR3,AHA 2940u, SB PCI 128, Marvel G200, win98.

[dave m]

IRQ sharing can be a real problem, if you have no problems I'd leave well alone. I couldn't get audio to work in Avid Cinema with my Marvel and a Diamond Monster MX300 sound card. Having just got my Asus P5A+ onboard sound to work with a lot of help from this site (and links from it), I foolishly upgraded to a real sound card to celebrate... I got an audio error b (even Avid haven't let on what that is) and no sound. When I looked, there were 4 devices sharing the same IRQ, (not including each PCI steering that each device came along with it (they don't matter/count, or so I believe :-)). The sound card and Marvel were two of them, as were my network card and USB hub. I despaired, but my wife dived into device manager and spent a happy evening juggling IRQs (force those devices that you can move on to another IRQ to do so, and see what happens). It was like doing Rubiks Cube, but eventually we got a configuration where everything worked! The only thing the Matrox is sharing with is the Creative DVD Card, which I assume shouldn't want to hog resources together, unless I wanted to record from DVD, but why would I want to do that? ;-)

Dave

[Ron]

Trav
Unless you are having problems, don't sweat the sharing. My system is currently sharing IRQ 11 between 6 different things, one of which is my Mystique G200. My NIC and MPEG decoder are there as well, along with ACPI steering(X2) and USB. Everything is working fine.

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BH6 450A 128MB CW7502B CDR SR8583 DVD SBlive! Value Hollywood + AL320N USR Sportster etc. Oh, 8MB G200 Mystique too!



[This message has been edited by Ron (edited 08-02-99).]

[Tn]

According to the book: Troubleshooting, Maintaining, & Reparing PCs, IRQ 11 is Windows Multimedia IRQ and can be shared by video/sound/etc. I have my SBLive and Marvel both using it with no problems.