Different solid colors when starting pc

Apr 2, 2018
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Gpu- GTX 970

Motherboard - Asrock H97pro4

CPU- Intel core i5-4460 3.2gz

PSU- VGA - 600B 600W 80+ Bronze
Certified ATX Power Supply

Ram - Skill - Ripjaws X Series 8GB (2 x 4GB) DDR3-1600 Memory

Storage- Western Digital - Caviar Blue 1TB 3.5" 7200RPM Internal Hard Drive


Hello, A week ago my pc turned off on its own while gaming and wouldnt power back on. The fans inside would spin for a fraction of a second then stop.

From people posting similar problems online i figured the psu went bad.

I brought it to a chain pc repair shop and they told me my psu was bad and fried my gpu along with the test gpu they used in diagnosing the problem. They tried to sell me a new psu and gpu but i declined.

I tried to turn it on at home because why not and it stayed on this time.
The repair shop deleted everything from my hard drive during diagnosing the problem so I reinstalled windows 7 via disk.

Everything seemed to work fine installing it until i started getting these problems:

Sometimes when i turn my pc on, its just an immediate dark screen with no option to go to bios.

Other times when turning on my pc, I get a solid color screen like bright green, light blue, and even pink once. I cannot see my mouse cursor when this happens.

Sometimes im able to get to my windows login but shortly after entering my password the screen has a blue or white flash and the screen darkens and then i get a no signal prompt from my monitor.

Ive tried fresh installing windows 3 or 4 times but the same problem still occurs eventually.

I tried starting the pc in safe mode and its working i think? Ive been sitting in safe mode for a good 15 mins and the pc screen hasnt changed to a solid color or turned black light it usually does.

This has been driving me crazy since last week, anything I can do to fix this?