New
#11
Is the pc brand new?
Has it ever over heated?
Have you tried the generic windows drivers? Un-install the current driver and let windows install it's own drivers.
Better yet take the system disk that came with the machine do a recovery and update the driver database
Im not sure if anyone suggested this but sometimes these disk come with a update from site for latest driver if he tryed the method of recovery without reinstallin win 7 then he should be cool
If you do not know what overclocking is more than likely you haven't done it.
Granted it is not happening all the time. It could still be a flaw in the device, hardware goes bad and its not always caught in the QA check.