My Dell XPS 420 reboots itself after 5 mins of playing any serious game.
I tried the OCCT power supply stress test and it rebooted after 1 min with the same symptoms as it has during games.
Do you think the power supply is the problem? If so, what should I replace it with?
I don't have any spare PSUs to test with. Is there any other way to verify that the PSU is indeed the problem?
XPS 420
Intel Core 2 Quad Q6600 @ 2.40 GHz
NVIDIA GeForce GTX 550 Ti
3 GB
Windows Vista 32 bit