PC turned itself off, will not restart, CPU issue?

Toggle sidebar Toggle sidebar
A

animescope

Prominent
Oct 8, 2017
2
0
510
I've opened it up, unplugged everything one by one to isolate the issue. I've cleaned all connectors. I've even dug out an old PSU and the results (outlined below) are the same.

I've gotten to the point wherein the CPU is connected to the motherboard but the 8pin CPU power cord is unplugged.

In this condition, the motherboard has power and can spin the fans on the case, CPU fan and GPU indefinitely and I can hear a whirring from the CPU but the lights and beep from the mobo are nowhere to be found. Nothing happens on screen. With the CPU power connected, the fans turn for a fraction of a second then everything stops.

I'm no pro but my guess is either the CPU is dead or there's an issue with the motherboard shorting somewhere when the CPU power is connected.

I built this PC in 2012, haven't changed anything except the PSU a few years back, not had any issues.

Specs/Components

CPU - i5-2500k
Mobo - ASRock z68 extreme3 Gen 3
PSU - Corsair cx750
Old PSU - Cooler Master gx 650 bronze
GPU - Asus Radeon HD7950 series Direct GU II
RAM - Hyper X Red 1x8Gb (?)
Case - Cooler Master Storm Trooper
Fan - Noctua DH12
OS - Win 10 (?)

Thanks guys, hope you can help out or offer some insight. Don't want to have to buy a new mobo or CPU unless I absolutely have to.

Damien
 
Sort by date Sort by votes
M

mark.potocnik555

Prominent
Oct 8, 2017
47
0
560
Yes. It is totaly a CPU issiue. The symptoms are usally sudden turning off and restarting. I have few senarios that maybe happend.
1.Did you put the CPU under stress or did you overclock it?
2.Did you install the heat sink properly?
3.Did your CPU got exposed to high temperatures like: 70°C (max temp. CPU can be exposed to), 80°(critical temp. possible core meltdown), 100°C (possible death in few months).


 
Upvote 0 Downvote
A

animescope

Prominent
Oct 8, 2017
2
0
510
No undue stress on the CPU, never overclocked, was just watching YouTube. I had Speccy installed and my temperatures rarely went above 50C even when I was pushing it running multiple resource hungry programs at once. My cooling system is pretty beastly with the Noctua module consisting of two fans and two large heatsinks in tandem, and if they were improperly installed I think it would have caused a problem before now, as I say I've been using this pc 5 years and change now.

Thanks for the help, guess it's just one of those things. I breadboarded it just now and confirmed that the issue only presents upon connecting the CPU power. With just the 24pin plugged in, the power supply fan and CPU fan spin up whereas there's no movement at all when the CPU power is plugged in. No beeps from motherboard in either case though...

Looks like I'll have to get my hands on a new CPU, hopefully that resolves it.
 
Upvote 0 Downvote
You must log in or register to reply here.

TRENDING THREADS

Latest posts

Moderators online

Share this page

COMPANY
RESOURCES
FOLLOW
Top Bottom