Windows Hardware Error (Black screen)

[bradderzd1994]

Rarely when i am watching videos (it only ever happens when i am watching videos) a black screen will occur and i will need to do a hard restart.

I have received this error in the logs

Windows
Problem: Video hardware error
Files that help describe the problem:
WD-20120811-1152.dmp
sysdata.xml
WERInternalMetadata.xml
View a temporary copy of these files
Warning: If a virus or other security threat caused the problem, opening a copy of the files could harm your computer.

I have only installed my new GPU about 3 months ago. The GPU is a radeon 6870. Up to date drivers in everything (including flash player). PSU is 550W XFX (500W is required for the GPU) the GPU is not overclocked.

Could anyone give me any advice please thanks. I have also done a memtest and everything is fine

 

[pauls3743]

In short, upgrade your power supply. It's quite probable one of the rails on your power supply is dropping outwith the ATX spec and your system is becoming unstable. I've already had to do it with 2 systems and they're stable now

 

[bradderzd1994]

But i already upgraded from a 450W to a 550W which has 42V rail (fairly high)