Serious video card crashes, unable to boot back into Windows 7

[ZachJS]

My games are completely crashing/locking up due to a driver issue, and I'm forced to re-boot into safe mode and re-install the video drivers. Then, when booting back into Windows, games crash in under 5 minutes, and the whole process repeats.

I've had this same problem before, and I've done gone through two cards through the EVGA RMA program, and they told me the last card I sent in passed their performance tests. I know heat isn't an issue, and my power supply is more than capable of powering my card. Any other suggestions? The card works fine in my brother's system, and I can't figured out why it keeps failing to operate in mine. I'm about to just sell it and cut my losses.

Specs:

C2D E6600 @ 2.4GHz
EVGA 680i SLI
EVGA 9800 GX2 (stock speeds)
Corsair 750TX
2GB Corsair XMS2

[404 Not Found]

bad mobo probably

now are you reinstalling as in uninstalling completely and THEN installing again?

[ZachJS]

Right, I completely remove the drivers from my system, then re-boot and reinstall the drivers. That doesn't seem to help. I've also tried different drivers, they all seem to have the same effect.

Occasionally, Windows will lock up while it's actually booting up for no apparent reason, and I'm then forced to restart the system again.

[404 Not Found]

format your hard drives and reinstall your OS and see if it still happens
try to back up any important shit

[ZachJS]

I did a reinstall of Vista 3 times and the issue still occurred, so I seriously doubt 7 will be any different.

Same with the drive formats.

[404 Not Found]

you say heat isn't an issue but it might be, how hot does your gpu run idle, and under load?

[ZachJS]

Usually in the 80s under load, low 60s idle, but I haven't checked recently because I'm not able to run a benchmark.

I'll try running EVGA Precision, but my system will probably lock up before I get anything.

[404 Not Found]

well all i can say is that it's probably your motherboard, someone else might prove otherwise though

[ZachJS]

I'm wondering if I should try swapping slots on my sound card and video card.

Is that even possible?

[404 Not Found]

if they're both PCI-e x16 then yeah it should be fine