Computer shuts down randomly and on switching to high resolution---Need Help

tushar1404

Honorable
Oct 16, 2013
5
0
10,510
Hi all,
my computer shuts down randomly while im working. I cleared the cmos and updated BIOS and formatted again. The computer was running on low resolution. But when i installed the display driver for onboard graphics card, the system boots but shuts down immediately with a BSOD.
I thought it might be display driver's problem so i installed a new graphics card. Then also same issue exists.
Sometimes the pc fails to reboot too. Tried changing RAM too.
Please help. Is there some issue with my SMPS? or my motherboard has gone?
My PC configurations:
AMD Phenom II X6 1055t 2.8GHz
8 gigs of ram.
Gigabyte ga880gm usb3 motherboard.
Coolermaster RS-500 power supply

I need to get this fixed urgently.

Thanks in advance :)