SLI problems.

[denstore]

I just got a couple of Leadtek 6800GT to suit my Asus A8N SLI Deluxe.
But I can´t get it to work! Either card works perfectly by itself. But as soon as I install the Nvidia-drivers, and the the system notices the dual graphicscards, it prompt me to restart to enable the multi-gpu mode. I´m used to this, because it´s the same as with my 6600GT-cards. The difference is that when I reenter Windows (2K), the screen gets white and black when the screen changes for the higher resolution (1280x1024).
The upper third of the screen is black, and the two thirds below are white. I have tried lots of things. I have changed places on the cards. I have checked the selector for SLI on the motherboard. I have check in BIOS and even flashed it with several different versions. Nothing helps.
Has anybody here had these problems? Since both cards are working by themself, and the motherboard works with the 6600-cards, it seems to be software related. But is it? And what am I to do?

 

[Astratuner]

Do u have a LCD Monitor cause on guru3d i read that there i a problem only with lcd monitors, i used the run sli on my crt but now on lcd i can't and i tried eveything but nothing helps...

 

[denstore]

I have tried both. And the problem is still here.
And I have heard of another person with identical problem, but with MSI-graphics cards. I really start to hate this rigg.

 

[Twigstir]

I read somewhere about win 2k and sli. Someone had to do something. Sorry, but i couldn't find the info. I hope someone comes to help you. It might be a simple fix.

 

[bkzshabbaz]

I had this problem, I had windows 2K, so to resolve it, i installed XP . Its not bad, but sometimes i get stability problems, theres random crashes and stuff like that.
You can read about these problems in the motherboards forum. I dont ever get crashes in windows 2k, so getting one or two crashes is something im really not used to. Im sure you're used to the stability on 2k as well.

 

[denstore]

Windows XP didn´t help me either. I´m pretty irritated right now. $1000 graphics, and only half of it is working.
What BIOS do you use? Because I think I have tried most of them, including beta versions. Drivers?
Version of Win XP? Anything that could help get these cards working...

 

[impemonk]

UH OH SPAGHETTIO!