PSU Problem?

[Kilbarrack]

Hi I recently built new PC with the below:

Quad Core Phenom II
PNY GTX 460 1GB (Performance Edition)
1 Sata Hard Drive
2 Sticks of 2GB RAM
1 DVD Drive
3 x 120mm Case fans
1 Hantol 550 W PSU (http://www.peats.com/cgi-bin/catalog...uct=1&id=27237)

I play a lot of World of Warcraft which works fine but I recently downloaded Mafia Wars II just to test out the Graphics card and I find that after a few minutes of action the PSU cuts out and I cannot start the PC back up until I remove the mains supply and reinsert. The PSU was cheap but I thought that because it was a 550W it would be fine. Before I go buy a new one can anyone confirm that it is most likely a PSU problem?

Thanks in Advance.

 

[Abstract Hero]

Sounds like a psu issue even if it wasn't I would tell you you need to get another psu before you hurt your system. PSU's are the one place if any that you don't want to buy cheap because they can ruin everything.

My suggestion. Kill the system. Don't use it while that PSU is in it because I'd hate to see you short your mobo.
I would suggest this.
Newegg.com - CORSAIR CMPSU-650TX 650W ATX12V / EPS12V SLI Ready CrossFire Ready 80 PLUS Certified Active PFC Compatible with Core i7 Power Supply

 

[MindoverMaster]

Seconded. You don't want to kill your whole system. I've seen bad stuff happen..

 

[Kilbarrack]

Thanks