BIOS settings for two GPUs

Belisarius · 3 Jun 2008 at 15:32

Hi,

I've just built my first Quad system. Haven't OC'd it yet - really please as is! - but I'm having a few issues with running 2 GPUs in it.

I've got an ASUS P5K Pro and 2 near identical silent 7600GSs in it. My original card is in the primary slot (x16) and the otehr in the x16(x4). When I boot up only one card seems to be activated. There is a BIOS option as to which card is primary and I get the same behaviour if I set it to PEG/PCI or PCI/PEG. Only the primary card activates. The other is recognised by the OS (Linux) and I can configure it and restart X and it's fine. But power off and I'm back to one again. There is an option in he BIOS for PnP/PCI settings. Do I need the set this to YES for a PnP OS?

Or any other suggestions please?

Cheers

Andy

Ben M · 3 Jun 2008 at 15:44

Have you installed sli drivers?

edit: I've just seen which board you're using... that's a crossfire board, you can't use sli on it.

Crowze · 3 Jun 2008 at 15:50

You can't use SLI on the P35 chipset I'm afraid, only nVidia's motherboards support it (and Skulltrail).

Belisarius · 3 Jun 2008 at 16:07

Sorry. not SLI'ing. Just running 3 (and soon 4) monitors!

Andy

Belisarius · 3 Jun 2008 at 23:59

Anyone have any other suggestions please? I've been wanting to get a matching dual DVI card for ages so I can add a fourth monitor and this is proving really frustrating! The second card doesn't appear to be active when I get to my login screen. if I do a restart then it works fine.

really baffled by this one...

Andy