PC Turns off and on with random delay

JimmyZet

Prominent
Apr 6, 2017
16
0
510
Hello, I started having this issue yesterday while normal pc usage, didn't touch anything that might cause this issue.

So first time pc started to turn off and turning back on repeatedly with random delay, 1st thing i thought about is thermal paste, i took the cable off the pc and wasn't around for couple hours and when i got back home i replaced the paste.

PC started working normally, i thought the issue was in overheating CPU, then after 4-5 hours the problem started again, the turn-off and back on would repeat again and again, the delay is random, sometimes pc would turn off and back on like crazy in a second for like 5 times, sometimes it would load the windows and then turn off and back on again, sometimes during the bios loading etc etc.
You never know how long can u stay in bios setting because the pc will start this turn-off-on craziness over and over.
I managed to check the voltage, in the bios, voltage is fine, i didnt like the CPU temperature in the bios health control though, it was always around 45-49 which is way too much considering me having water cooling system and not playing any game at the moment. In windows my CPU temperature max was 56 celcius now, but its stable at 28-33.
I tried opening the Power supply, everything seems normal there, nothing burned, the fan works really good.

Anyway, yesterday i was tired trying to fix this so i unplugged the pc of the electricity for whole night. 2 hours ago i woke up and since then my pc worked fine till now, dunno when to expect this craziness again.

What could be the issue?

As i was saying the turn-off-back-on would have random delay, from less then a second to couple minutes, u never know when to expect it. Oh yeah, and no sound from a chip. nothing.

Oh yeah, now it started the craziness again, 2 hours and 30 min worked fine. >.<

 

JimmyZet

Prominent
Apr 6, 2017
16
0
510
Its me JimmyZet.
I had that issue started and had a blue screen after , now pc will not turn on even for a second, instant on-off repeatedly only .... :fou:

Writing from my smartphone
 

JimmyZet

Prominent
Apr 6, 2017
16
0
510
tested without graphic card with 1 ram, with other PSU, same problem, pc turns off and on all the time.
the problem is in CPU or motherboard...

anyone know what to do?
ps. no visual defects on both, no burns no craks
 

JimmyZet

Prominent
Apr 6, 2017
16
0
510
I dont know how but i managed to make pc get out of the cycle and the bios recovered.
No idea how its going to act now. For now 20 min pc already works.
If anything happens again i'll update the forum
 

JimmyZet

Prominent
Apr 6, 2017
16
0
510
My PC is off, i was using laptop and noticed that the mouse that connected to the PC started to blink like 3-5 times in a rown. Meaning the CPU is fine, something is wrong with power cycle.