Some relevant a priori knowledge:
Mobo: P5N32-E SLI (2006)
Power Supply: some 700 W eco green power supply (2006)
Case: Antec 900 (2006) Note: One six-pin modular is attached directly to the supply, another six-pin split into 2 4-pin molex-es piggy-backing off of fan 4-pins
Near-everything else can be seen in the attached DxDiag.
During installation, I reseated near-everything in the case to fit the monstrous size of the card, including RAM, CPU fan, and cables. Upon playing some games after insuring that everything was seated properly, I was victimized by a series of BSODs (not attached) and cold shutdowns. Further investigation revealed these were the result of irresponsible CPU fan reattachment (the CPU fan wasn't touching the CPU, resulting in overheating of the CPU to ~ 90 C).
After fixing this, further game time resulted in more BSODs, and recently, cold shutdowns have begun. Checking other forums seemed to indicate that this was a power supply issue (often scapegoated), and it certainly may be. If you note the age of the power supply in relation to capacitor aging, and the power-hogging case Antec built, this may be true. I have saved some BSOD information, all of different error codes, and attached them.
Could this problem be the result of a faulty card, bad drivers, fried mobo or cpu, lack of adequate power, or circumstantially unrelated RAM/power supply faulting, or something else entirely?
Aside: Running in safe mode sometimes results in BSODs or cold shutdowns (BSODs are much more common, however; both in and out of safe mode). I have not run memtest, nor have I re-attached my old graphics card and remove the new one, as I assume that it is, indeed, graphics card-related. The second benchmark test on the card ran properly, but upon completion BSODed out.
bsods.txt 6.66KB 33 downloads
DxDiag.txt 46.13KB 41 downloads