Laptop only artifacts when PSU is plugged in

[Razorback0930]

So, just today my laptop started artifacting like crazy whenever i tried to run a game. The game would launch, immediately artifact, and then the display driver would crash pretty soon and repeatedly. I installed updated drivers for the graphics card and no luck. Just on a whim i unplugged the psu and ran it on battery and everything worked fine, no artifacts, no crash (although of course slowed down since nividia seems to downclock the gpu when its on battery). Does this mean my PSU is bad? Or does it mean my GPU is bad and cant run at the higher clock settings? How do i tell? Temps are all normal..

System Specs...
Cyberpower custom built notebook in an MSI case
Windows 7 64 bit
Intel I7-2630qm
8gb ram
nvidia geforce 560m

 

[popatim]

I would say its the gpu or power supply bd in the laptop.

 

[Razorback0930]

Never mind, a reboot seems to have solved it, although I couldn't tell you why.. Only other thing I did was install a new driver. Ah well