Desktop crashing during gaming

jmungz12 · Oct 21, 2016

My Current Build

The GPU I'm switching out to test is a GIGABYTE Radeon HD 7950 DirectX 11 GV-R795WF3-3GD 3GB 384-Bit GDDR5
The PSU I'm switching out to test is a Corsair CX Series, CX750, 750 Watt (750W) Power Supply, 80+ Bronze Certified.

My computer has been crashing only when I have a game running. The crash is either a complete shutdown or a hard reboot (depending on what PSU is installed, more on this later.) This had originally started happening about 2 months ago after I had the same build for about 5 months. I had replaced out the mobo, CPU, RAM and did a fresh windows 10 install at this time. The problem seemed to have gone away but it came back in the past week.

This problem only happens during gaming, specifically Overwatch (the OW crashing is really unique in that it only crashes when the game starts to load up a map and never on menus or anything) and during Civ 6. I was playing MGS5 about a month ago for long periods of time with no crashing problems.

I've done combinations of the PSUs and GPUs I have on hand. Both GPUs crash with each PSU.

This PSU "EVGA SuperNOVA 750 G1, 80+ GOLD 750W, Fully Modular" causes my system to crash, and reboot. The temps didn't seem high, but I wasn't monitoring the data like I did with my other PSU.

This PSU "Corsair CX Series, CX750, 750 Watt (750W)" causes the system to just shut down. It won't reboot until something cools off (my GPU and CPU temps seemed really cool and I cranked the fans) or I flip the switch on the PSU on and off.
Here are my MSI readouts from the crash on this PSU and the GTX 970. The only thing I can figure out is that my Voltage limit is being hit and it has a high Voltage reading at the time of the crash. I dont have this card OC'd though, so I'd imagine its running at stock unless I unknowingly did changed something.
MSI Readouts at crash time

I've gotten readouts from the Gigabyte 7950 with the Corsair when it crashes as well.
Radeon 7950 Crash with Corsair

Tumeden · Oct 21, 2016

Those cards only require a 500w+ PSU to power correctly, if your problem still persists after trying both GPU's and PSU's then the problem likely isn't that.

Software temperature monitors don't always show the correct readings either, so keep that in mind.

To me from personal experience it does sound temperature related with your CPU, especially after you pointed out the part where your computer wont even reboot till cooled off, and your system crashes during "load screens" and not during actual gameplay. which would use your CPU more then GPU.

Seeing as you built, and rebuilt your system it leads me to believe it has to do with the CPU temperatures - keep in mind the CPU temp can go from room temperature to the temperature it takes to cook an egg in a matter of a snap of the fingers, which is a lot faster then some programs can even detect when it comes to monitoring the temperatures.

My suggestion is to re-seat your heat sync for your CPU, and while you're at it clean all the dust out of the heatsync and fan.
Make sure you apply enough thermal paste on the CPU, but also make sure you don't apply too much because that can cause just as many issues. Generally a dab in the center the size of a pea is plenty, as it will spread out when you seat your heat sync.

Hope this helps, good luck.

jmungz12 · Oct 21, 2016

Tumeden :

Those cards only require a 500w+ PSU to power correctly, if your problem still persists after trying both GPU's and PSU's then the problem likely isn't that.

Software temperature monitors don't always show the correct readings either, so keep that in mind.

To me from personal experience it does sound temperature related with your CPU, especially after you pointed out the part where your computer wont even reboot till cooled off, and your system crashes during "load screens" and not during actual gameplay. which would use your CPU more then GPU.

Seeing as you built, and rebuilt your system it leads me to believe it has to do with the CPU temperatures - keep in mind the CPU temp can go from room temperature to the temperature it takes to cook an egg in a matter of a snap of the fingers, which is a lot faster then some programs can even detect when it comes to monitoring the temperatures.

My suggestion is to re-seat your heat sync for your CPU, and while you're at it clean all the dust out of the heatsync and fan.
Make sure you apply enough thermal paste on the CPU, but also make sure you don't apply too much because that can cause just as many issues. Generally a dab in the center the size of a pea is plenty, as it will spread out when you seat your heat sync.

Hope this helps, good luck.

I'm currently running a stress test with Prime95, the in place large FFT's Torture Test. I'm going to run it for a bit more, but temps are currently rising off the test with all cores at 100%

Tumeden · Oct 21, 2016

What are your idle temperature readings, and the readings while running the test?

jmungz12 · Oct 21, 2016

Low to mid 20s for idle, 40 to 50C stressed.

jmungz12 · Oct 22, 2016

I've updated this with more readouts at crash time. A thing of note, the Gigabyte card feels hot when it crashes. One of the fans isnt spinning, not sure why. It used to spin on a really old PSU I had, but it doesnt on these two PSUs. So I dont think the fan is broken, I always attributed it to a problem with the power pins.

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Desktop crashing during gaming

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