Question I can use my PC for 30 minutes then it goes off

[SamGates97]

My specs:
CPU: Intel I7 4470k
GPU: GTX 660
MoBo: MSI B85M G43
RAM: 16GB
HDD: 2TB
OS:Windows 10

I can use my computer for around 30 minutes before it shuts down, no blue screen just straight to black. When it goes off I can turn it right back on again and continue to use it until another 30 minutes go by and it turns off.
I have had the PC for around 4 years so I am thinking it could be failing parts, the PSU fan has been making a weird creek sound leading up to the pc turning off but when the pc goes off and I turn it on again it goes away for a while but then comes back, I think that has something to do with it but I'm unsure, thoughts?

 

[Fix_that_Glitch]

Yes a computer just going off is more than likely a failing psu. It can't deliver the power needed to run your computer. Having said that. I would still rule out overheating cpu or gpu and monitor their temps before it shuts off.

 

[SamGates97]

Thanks for the quick reply. Yeah I've checked the temps of the cpu and the gpu with hwmonitor and they both are around 30-40 degrees when idle.

 

[Fix_that_Glitch]

Thanks for the quick reply. Yeah I've checked the temps of the cpu and the gpu with hwmonitor and they both are around 30-40 degrees when idle.

What are the temps during use? And second culprit could be the motherboard going bad. Can you swap out the psu for another?

 

[Wayfall]

The best way to test this is to run Prime95 for an hour or so using the preset that uses the highest power load and see if the pc 'Clicks' off.

If it does it's the PSU that needs replacing.

Get a decent Corsair, Seasonic or EVGA one, 500w bronze would be fine.

Also have a look through Tomshardware PSU list: https://www.tomshardware.com/reviews/best-psus,4229.html

 

[reBOOT-PCTek]

it COULD be a failing PSU. Sure. But your description of symptoms sounds like it might be any one of 3 or 4 things; and often, once a single problem arises in a PC, it's chased by another problem that is caused by a lack of attention paid to the first problem. you MAY have a couple of issues going on at the same time. HEAT sounds like an issue for you. When HDDs are too hot they simply turn off, most of em do anyways. when a cpu gets too hot it also does that. sometimes mobos have a warning system in the options of the bios that beep a warning before the critical temp is reached. Are you hearing anything like that when it shuts down? HDDs also can make high pitched sounds when getting older, and being heat affected. Open it up. expose the inside to a strong FAN blowing on it. Then, use the computer that way, with the fan blowing on it and see if it shuts down at 30 mins in. If it stays on, then you have solved the issue, you will just have to find out which component is failing, and replace it, or them.

Db

 

[SamGates97]

I used prime95 for 10 minutes and the max core temp was 88 degrees (how bad is this? My guess is pretty Bad) the HHD is a little warm but not bad.

 

[SamGates97]

and no fix_that_glitch I don't have another PSU