[GPU-Z Test Build] Fix for cold bug on GTX 480

[W1zzard]

When testing cards at below -64°C the NVIDIA driver gets confused and thinks the GPU overheats which causes a loss in performance.

When started with /fixcoldbug the attached GPU-Z build will increase the temperature reading that the NVIDIA driver sees by 65°C (it does not actually increase GPU temperature). This change should result in stable benching at lower temperatures.

Please note that a warm reboot might not remove the change, powering off the system and back on will.

See also here: http://www.xtremesystems.org/forums/showthread.php?t=250634

Please report your success in this thread and here.

 

[Dentlord]

Thanks so much for this!
Will be testing tonight and report back the results.

 

[Kal-EL]

Thx Wizz, I'll be givin this a try as well.

 

[Dentlord]

Ok so I just tested this for a bit, and I'm sorry to say it didn't change the cold slow bug any for me.

It did alter what temps gpu-z and precision were reading, at -65c it was around 0c. However the cold slow bug started at exactly -68c (according to probe), with or without the fix applied.

 

[W1zzard]

changes included in 0.4.3