Is my Power Supply going Bad.. or is it the MB or CPU?

psycho_klown66

Distinguished
Dec 11, 2010
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18,530
Configuration since 2011/2012

CPU: Intel Core i5-2500K
MB: ASRock P67 Extreme4 (B3) LGA 1155 Intel P67
RAM: G.SKILL Ripjaws X Series 4GB (2 x 2GB) 240-Pink DDR3 SDRAM 13333 (PC3 10666)
GRAPHICS: Gigabyte GV-R695D5-2GD-B Radeon HD 6950 2GB 256-Bit GDDR5
POWER SUPPLY: Corsair Enthusiast Eries CMPSU-650TX
HD: Samsung Spinpoint F3 HD103SJ 1 TB 7200 PRM SATA 3.0Gb
DRIVE: Asus DRW-24B1ST SATA 24X DVD Burner

This is not OC'ed, and never has been OC'ed.

3 different things happen, and it's sometimes happens, sometimes doesn't.

Scenario 1:
Boot Computer
Black Screen (Monitor says no signal)

Scenario 2:
Boot Computer
Everything boots
After an hour, computer freezes. No BSOD, just completely freezes.
Reboot computer, most of the time repeats Scenario 1

Scenario 3:
Boot Computer
Everything boots
Use computer for over 6+ hours straight, no problems.
Turn off computer when done.

Today, I turn on the computer, goes to Scenario 2, and now Scenario 1. And just repeating Scenario 1.

If I leave it off and turn it on tomorrow, it might go to Scenario 3 and everything is fine.

I did run a FurMark graphics stress test and it did fine, no crashes, so I don't think it's the graphics card.

I'm guessing it could be anything, don't know which I should replace/test first... because this would require making a purchase, and I have limited funds. :|