[SOLVED] PC shutting down when gaming

[nalex]

Hi all,

So today I changed over my stock cpu cooler to a Noctua NH-U12S and ever since my PC seems to be shutting down whenever I'm playing a game. I've monitored the GPU and CPU temps and they've all stayed low, the GPU went the highest to 72 but I'm pretty sure that's normal. I've checked that all the cables are plugged into the motherboard OK and that I've not left any loose wires and that all seems to be OK too. Any ideas as to what might be causing this? I've never had any issues with this previously and seems weird that it's only happening now I've switched over the CPU cooler (and I may add the CPU temp is now fantastic - highly recommend the Noctua

Any helps or tips are appreciated.

Thanks

Summary
Operating System
Windows 10 Pro 64-bit
CPU
AMD FX-8350 30 °C
Vishera 32nm Technology
RAM
16.0GB Dual-Channel DDR3 @ 666MHz (9-9-9-24)
Motherboard
Gigabyte Technology Co. Ltd. GA-78LMT-USB3 (Socket M2) 31 °C
Graphics
G247HYL (1920x1080@60Hz)
S22C150 (1920x1080@60Hz)
4095MB NVIDIA GeForce GTX 970 (ZOTAC International) 33 °C
Storage
931GB Seagate ST31000340NS ATA Device (SATA ) 34 °C
447GB SanDisk Ultra II 480GB ATA Device (SATA (SSD)) 30 °C
Optical Drives
No optical disk drives detected
Audio
NVIDIA Virtual Audio Device (Wave Extensible) (WDM)

EDIT: PSU is EVGA 600 B1.

 

[nalex]

Anyone have any ideas on what might be causing this?

 

[anotherdrew]

Anyone have any ideas on what might be causing this?

I thought about this one yesterday and all I can do is guess ...
It does not sound like overheating, but that always has to be on the list of possibilities when you make a change like this.
Too much thermal paste and some got into the socket?
Heatsink too tight or not tight enough?
Heatsink touching something ... VRM heatsinks look pretty tall on that MB.
Not enough airflow over VRM heatsinks ... a stretch.
Static or electrical discharge (another stretch) ... did you unplug the computer?

Have you considered putting the stock cooler back on?

 

[Phaaze88]

1st guess would be the combination of FX-8350 and weak 4+1 phase motherboard. Really should be using at least a 6+2 phase board with those 125w FXs...
2nd guess would be the cheap power supply.

3rd guess, and might be a bit of a stretch:
Before you changed coolers, the cpu was thermal throttling. You probably weren't using AMD Overdrive to monitor temps, and weren't aware of the throttling.
The thermal throttling was giving the motherboard VRMs a 'break' of sorts whenever the cpu throttled.
Now that it's not anymore, the cpu can stretch it's wings...
Coincidentally, the weak motherboard VRMs went on strike not long after that happened.

 

[nalex]

Bit of an update, I'm now not not able to turn the computer on at all. I click the power button and the fans look like they try to turn on and turn a few notches and then nothing happens.

I've tried putting back on the stock cooler but this hasn't changed anything unfortunately. I get the feeling the PSU has fried. Or as you mention Phaaze the motherboard may be overwhelmed and has given up entirely?

Not sure if any of the above gives you any further inkling as to what the issue may be, but I'm assuming they're linked?

Also, I double checked the thermal paste and it looked OK to me, no spillages etc. There's quite a lot of room in the case I have, the heatsink doesn't appear to be in contact with anything other than the CPU and the bracket.

 

[anotherdrew]

Bit of an update, I'm now not not able to turn the computer on at all. I click the power button and the fans look like they try to turn on and turn a few notches and then nothing happens.

I've tried putting back on the stock cooler but this hasn't changed anything unfortunately. I get the feeling the PSU has fried. Or as you mention Phaaze the motherboard may be overwhelmed and has given up entirely?

Not sure if any of the above gives you any further inkling as to what the issue may be, but I'm assuming they're linked?

Also, I double checked the thermal paste and it looked OK to me, no spillages etc. There's quite a lot of room in the case I have, the heatsink doesn't appear to be in contact with anything other than the CPU and the bracket.

If the PSU was fried I would expect you would get nothing. The fact that fans turn a half notch to me points to failure of major systems ... namely MB or CPU.

 

[nalex]

Oh, OK then, that's good to know. Not clued up at all when it comes to MB's. Any recommendations on upgrades and I'll buy one and see if that fixes me my issues? I'm sure that would be the issue over the CPU, I only bought that recently as opposed to the MB which is about 6-7+ years old at this point

 

[anotherdrew]

That CPU was introduced 8 years ago ... I don't know when they stopped manufacturing it, but I'm guessing 5-6 years ago. If you were to get another motherboard, it would probably be used. The CPU you got might have been used as well. A recommendation is difficult becuase what I recommend might not be available (don't know where you live).

 

[nalex]

I've taken the whole computer apart this morning and re-installed everything and hooray it now turns on. I have a slight suspicion that the front panel connectors were on the wrong way around embarressed, so I am really sorry for wasting everyones time there. I'll take a look at upgrading my motherboard and my PSU over the next few weeks and I'll report back if I encouter any further issues.

Thanks alot for everyones responses, appreciate it.