PC randomly restarting, now stopped working

MrCoffeelp

Reputable
Jan 5, 2016
1
0
4,510
My PC had random restarts whilst playing graphically intense games, it has now managed to stop working full stop.

My PC worked perfectly fine for the first 2 months of using it. When I bought Fallout 4, I updated the drivers as usual. However, when I was playing the game, I encountered my first random restart. First thing came to mind about something overheating or the drivers being buggy. I checked my temps and they were all fine. Although, the motherboard seems to reach some weird temperatures from what it says on the - built in- temperature gauge. It manages to reach 60-65 when reaching heavy graphical parts of the fallout world. The case I have is well spaced and circulation doesn't seem like much of a problem, but I'm not ruling it out. I'm using a stock cpu cooler which may be a bad decision but I'm not overclocking and the temps don't seem to be much of a problem for the cpu. Im on my way for purchasing a liquid cpu cooler and extra fans once I find the source of the problem. Back to the restarting, it gradually became more frequent and then started to happen during any game. I could use it for normal use such as doing uni work and browsing until it started happening when watching twitch, however it was rare during this type of use. I have anti-virus software and malware protection, so a virus isn't my main focus to the problem. I say unlikely because I've only used this PC for; downloading/playing games on steam, using google docs to do work and to watch the odd twitch stream. Then it moved on to one day just not switching on at all, I did the obvious troubleshoots; unplugging/plugging cable back in and changing plug socket.
There was no beeping sounds when trying to switch the PC on, there was no sign of power at all going to the device. This changed my options towards the PSU not working. I have contacted cooler master around 2 weeks ago about having a replacement or any other option, but I haven't had a reply yet.
I'd be very grateful to whoever has a solution to this or if anyone knows what the source of the problem is. I'm tempted to buying a new PSU but I don't feel it would be the best thing to do when I don't know the source. Unfortunately, I don't have any other parts or a PC to test the parts I have.
I have provided as much information I can remember as of writing this post but I'm sure there will be a lot more I can provide.

Idle temperatures are 30-35 celsius for motherboard and cpu, goes up to 40-55 under heavy load (60 for motherboard, but Im not sure if its reading correctly.)
GPU sits around 35 at idle and goes to around 55-60 under heavy load.

These are the components I have:

- NZXT CA-S340W-B1 Source 340 Midi-Tower Case - Black
- MSI Z97 Gaming 5 Intel LGA1150 Z97 ATX Motherboard
- Microsoft Windows 8.1 (updated to windows 10)
- HyperX FURY Series (2 x 8 GB) DDR3 1866 MHz CL10 DIMM
- WD 1TB 3.5 inch Internal Hard Drive - Caviar Blue
- Cooler Master RS550-AMAAG1-UK V Series SemiModular V550s "UK Cable, High Performance, - 80+ Gold Rated, Semi Modular, 5 Year Warranty" 550w
- MSI NVIDIA GTX 970 Gaming Twin Frozr HDMI DVI-I DP Graphics Card (4GB, PCI Express, DDR5, 256 Bit)
 
Solution
your psu is a crap one ...soldering problem can give short and fail , and have bad 5v and 12v regulation

get a seasonic/xfx/evga b2-g2-gs

which cpu you have?

Ralston18

Titan
Moderator
Are you able to access the power switch on the PC and check it for connectivity?

I.e., the switch may have failed. With the computer unplugged and a multi-meter you can test the switch - could be failed open.


So pushing the PC's switch to start the computer does nothing.
 

lessthan0

Honorable
Jul 27, 2015
127
4
10,715
I think its your PSU. I used to have this problem with my shitty Kentek PSU. I upgraded to a HX 1000i and never saw any problems since.
You can also test with another PSU. It can also be your board or CPU. But test it with another PSU and tell us the results.