SLI issues...

[Hexen525]

I just added SLI to my computer(hit specs for system details). When I boot my PC, I get a PCI to PCI Bridge driver not installed. Nothing I try(new chipset drivers, new video drivers, letting Windows install the driver on it's own) fixes this. My SLI is useless, and causes all sorts of graphic glitches(looks like a bad '70's acid trip in 3d apps, desktop is OK). If I disable my SLI, my fps drop badly(down from 55-60 in Hellgate:London to around 20) but my glitches clear up.

Any ideas?

[VW_Factor]

Do you have the SLI bridge installed between the cards? Do you have the motherboard switcher thingy set to SLI mode and not single card mode? Is there suffient airflow in your case, and finally, is your PSU enough to power the video cards?

[Hexen525]

SLI bridge is installed. The 680i-SLI chipset doesn't have the little card thingy(I know what you are talking about, my nForce4 SLI mobo had one), PLENTY of air flow . PSU is an 1100w.

[Xerogen]

I dont know anything about SLI, but DAMN nice rig. Flaw is your 32 bit, need 64 bit for that quad . GL on your problem tho.

[Hexen525]

Thanx man . 64-bit Vista Ultimate and a new 24" monitor are the last things on my list for a while(wife will be happy to hear that).

[SirBaron]

Moved thread to appropriate section.

As for your problems have you tried both cards on their own? Take one card out and test both seperatley... Maybe you have a faulty card?

[VW_Factor]

Moved thread to appropriate section.

As for your problems have you tried both cards on their own? Take one card out and test both seperatley... Maybe you have a faulty card?

Indeed. This is a good starting point for the troubleshooting process too.

[Hexen525]

Both cards working fine individually(EQ2ing on the 2nd card as I type). I was playing around with various drivers(installing and uninstalling) and after a while I noticed the Device Manager and my Control Panel stopped listing that I had 2 cards installed. I had made no hardware changes at this point, just swapping drivers.

[Uber_Tiny]

Bad driver download (corrupted files)

Kinda sounds like that to me.

[Hexen525]

Like I said, I tried about 4 different drivers, they couldn't all be bad...could they? Got them from www.guru3d.com, always been a good site to me.

[Hexen525]

Well, I redownloaded 169.04, 169.01 and 163.75 and the same thing. After all the tests I've done, I am going to chalk this one up as either an OS issue or a mobo issue. I am doingthe new OS this here soon(Vista 64-bit) and then I will know if it's a mobo issue or not. I'd do a reformat now and not have to wait, but I really hate installing OS'es if I really don't have to.

Any other ideas are still welcome(I put my 2nd card away, but if it's a good idea, I will gladly break it out again ).

[Uber_Tiny]

Are you cleaning out the previous drivers?

[Hexen525]

Hehe . Even using DriverCleaner.net.