Driver stopped responding / BSOD crashes

I borrowed a 7950 GTO 512Mb from a friend. Replacing my 8800GTX with this has stabilised my system. No sign of crashes at all, been playing in Source engine for about 4 hours now.

The 7950GTO only requires one power connector, unlike the 8800TGX which takes two.

So, either I have a bad graphics card or the power supply is not stable enough to supply on both 12V PCIE connectors. I suspect it is the power supply. I asked my friend to run CPU-Z on his gaming rig and send me the output file.

His voltages:

Voltage sensor 0 1.33 Volts [0x53] (CPU VCORE)
Voltage sensor 1 1.20 Volts [0x4B] (VIN1)
Voltage sensor 2 3.26 Volts [0xCC] (+3.3V)
Voltage sensor 3 4.89 Volts [0xB6] (+5V)
Voltage sensor 4 11.84 Volts [0xB9] (+12V)
Voltage sensor 5 -6.02 Volts [0x5E] (-12V)
Voltage sensor 6 -10.56 Volts [0xA5] (-5V)
Voltage sensor 7 4.95 Volts [0xB8] (+5V VCCH)
Voltage sensor 8 3.10 Volts [0xC2] (VBAT)
Temperature sensor 0 36°C (96°F) [0x24] (TMPIN0)
Temperature sensor 1 40°C (103°F) [0x28] (TMPIN1)
Temperature sensor 2 46°C (114°F) [0x2E] (TMPIN2)
Fan sensor 0 975 RPM [0xAD] (FANIN0)
Fan sensor 2 3590 RPM [0x2F] (FANIN2)

My voltages:

Voltage sensor 0 1.17 Volts [0x49] (CPU VCORE)
Voltage sensor 1 1.84 Volts [0x73] (VIN1)
Voltage sensor 2 3.34 Volts [0xD1] (+3.3V)
Voltage sensor 3 4.92 Volts [0xB7] (+5V)
Voltage sensor 4 0.51 Volts [0x8] (+12V)
Voltage sensor 6 -3.33 Volts [0x34] (-5V)
Voltage sensor 7 5.08 Volts [0xBD] (+5V VCCH)
Voltage sensor 8 3.26 Volts [0xCC] (VBAT)
Temperature sensor 0 39°C (102°F) [0x27] (TMPIN0)
Temperature sensor 1 23°C (73°F) [0x17] (TMPIN1)
Fan sensor 0 1112 RPM [0x25F] (FANIN0)

As you can see, his +12V is operating at very close to 12V, whereas mine is not. Can anyone confirm if that means my PSU is defective?
 
I got a new replacement PSU. It hasn't changed a thing, I still crash to that BSOD very quickly when running BioShock. I'm totally gutted, I feel like I've spent £1000+ on a pile of junk.

Voltages are still not reading as 12V on the 12V line. What regulates the voltage? Is it something to do with the motherboard perhaps?
 
I had a system running perfectly for 6 months then I started getting the exact same error. There are many, many people getting this error with Vista drivers, see the thread below:

http://forums.nvidia.com/index.php?showtopic=43407

For me I believe it was a hardware issue as I had the the problem under 3 different OSes and countless different drivers.

  • I could run Orthos/Prime95 stress-test for 24 hours without error, so I initially RMA'd my 8800GTX but the replacement had the same problem.
  • I then found one of my sticks of RAM was faulting in Memtest, so I removed & replaced that but still had the same issue.
  • I swapped out my EVGA 680i for a Gigabyte DS3R but that didn't fix it.
  • I ran ATI Tool and found my replacement 8800GTX was artifacting, but an 8600GT was not.
  • I've got a refund for both the EVGA 8800GTX and Corsair HX 620w. I'm waiting for a more powerful Seasonic M12 700w and an EVGA 8800GTX ACS3 KO to arrive this week.
I think either my PSU was slowly killing the cards, or simply not supplying sufficient power. I'll let you know if the latest replacements work.
 
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