THANK YOU FOR ALL OF YOUR HELP. I HAVEN’T IDENTIFIED THE PROBLEM YET, BUT I’M A LOT CLOSER. I’M DONE TROUBLESHOOTING FOR NOW, SO THERE IS NO NEED TO EMAIL ME WITH TECH SUPPORT. THANKS AGAIN EVERYONE.

I’m having a weird problem that I could use some help figuring out.

Here are the specs:

Asus A8N-SLI Deluxe
AMD Athlon 64 3700+
2 GeForce 6800GT PCI-E connected via SLI Bridge
2GB Corsair XMS DDR400
200GB SATA HD
480W Thermaltake Power Supply

The case has 7 functioning fans and plenty of airflow, so I don’t think anything is overheating. Video cards are operating at 64C with ambient temperature of 45C.

The system runs great, except when I go to run a game. When I fire up a game (World of Warcraft or Battlefield 2 for instance) the screen will go black and the system will hang up. Nothing I can do short of restarting will pull it out o the black screen.

Now, if I reinstall the display drivers, reboot, re-enable SLI (because installing drivers sets it to off by default) reboot again, *usually* the games will run just fine. That is, until I reboot again, after which I get the black screen again, and have to reinstall the drivers.

I’ve tried a few different nVidia drivers including the latest ones, and the ones that came with Battlefield 2. I haven’t had any luck one way or another. Obviously I don’t want to have to reinstall drivers every time I reboot my computer.

Also, the BIOS SLI setting is set to auto, which is the best way to have it, though I did try setting it to SLI with no improvement. I have rechecked everything and everything is installed correctly.

Any ideas?