Random Restarts and screen turn offs.

CommandoOS

Honorable
Nov 17, 2013
3
0
10,510
Okay, very very unusual problem, hopefully someone can help.

Around 2 days ago, my computer started to freeze, and a solid colour screen would show. Once this happened, I could do nothing but restart my computer, and once I did, when I eventually got back on to windows, it freezes again.The colours that are displayed look like they are windows colours, so I reset windows, however, that's where the real problems begin. After I did this, the colours did not appear any more, however the computer randomly restarted on me. I thought it was just a one time thing but then it carried on doing it. The restart times are very random, but when they occur, the computer just instantly turns off, no matter what task I am doing, and reboots. However, I have noticed three different types of restarts it is doing:

- Switching off, then restarting.
- Switching off, turning back on, gets a little through the boot process and the monitor turns off.
- Monitor just turns off, then computer restarts.

As this points to a GPU issue, I tried the obvious; I updated to the latest drivers, didn't work. I made sure all connections were in properly and that the actual graphics card was in place right, which also didn't work. So, I thought it has to be a GPU issue, so I purchased a new GPU, and got home, put it in, loaded up the computer... No restarts... Hoooray! So, I install all of the new cards drivers, and then I'm a happy bunny. Then... the same problem again. Very odd. I left my computer on all night last night, and it did not restart, however, the moment I go on it this morning, open up the browser, it restarts. So, it seems to be when things are clicked, the computer restarts. But sometimes, it just does it randomly... it's such a strange issue!

If anyone could help, I would be very grateful!

PC Specs:

Intel i7 3.9Ghz CPU
ASUS P8Z77-V LX2 Motherboard
MSI GeForce GTX 760 GPU (Previous model was EVGA GTX 550ti)
OCZ ZT Series 650W Modular PSU
WD Black 2 TB Primary Hardrive
WD Red 4 TB Secondary Hardrive
12GB RAM
 
Video cards can crash computers but they cannot cause clean restarts. I think that it's most likely your motherboard. The PSU may also be the culprit but they don't tend to have symptoms like this. PSUs generally just cause the computer to shut off or completely freeze. I think that the power distribution circuitry in your motherboard is failing.
 
Oh, if it's only a month old, then I think that it is DEFINITELY the culprit. Small errors in the circuitry like cold-solders generally take a few weeks to show themselves. Everything is fine and then... Now if your PSU is 6 years old, that might make a difference but somehow I doubt that's the case. LOL