Screen goes black when gaming sometimes?

[GTGear]

Hello,

Sometimes when I play PC games, my screen goes black, and the power button changes from green to yellow, like its idle. This happened twice, once while playing a PC game, and once when I was just browsing the net. I don't think its a power supply issue being that I have a Altec 450W power supply. Could it be doing this because I flashed the pipes on my videocard? but then again, that was over 5 months ago and I dont see why a problem would start now. Any help would be appreciated. I have a Sapphire X800GTO.

 

[riekmaharg2]

try using a different graphics card and see if it works.

 

[IH8PunkRok]

yea thats basically all u can do for now. if u dont happen to have one lying around then find a cheap one that u can put in for a while and run ur comp like u usually do.
believe it or not computers can take awhile to get "sick". even if u flashed the pipes it may not have caused a problem until now. and if it is because u flashed ur card, dont do it with next one u get.
-rok

 

[wolfram]

Did you take care of the extra heat caused by the 4 extra pipelines?