Games wont play, good specs!

[varadium]

I recently got my hands on a pc from pcspecialist.com
specs:
duo core athlon 3.4ghz
Radeon HD6570
8GB ram
500w psu (recently upgraded from 350)

when i open games they work for a few seconds before either crashing the pc or cutting the gpu so the screen goes blank. i thought this was a PSU problem but i upgraded from 350w to 500w, but nothing changed.

all games seem to fail (2D flash games seem to take longer to crash though...) games i have tried:
skyrim
battlefield 3
minecraft
terraria
the sims 3
need help, please reply!

thankyou

 

[refillable]

Try getting the right and the latest driver of your motherboard and GPU.

 

[varadium]

i have, everythings up to date.

 

[refillable]

Are you sure?

Are All the parts healthy? Check again, they might have defective parts. Just check temperatures or doing benchmark.

Also try doing windows update or sweep viruses in your computer. But since this is new I think that the computers come defective. You might RMA I also.

 

[varadium]

im going to phone pcspecialist tommorow get a diagnostic and get a new graphics card or summin, thanks for your help though guys <3