Problem with system randomly crashing under load. (and sometimes not under load)

MrKatanaNinja · Nov 20, 2016

During graphically intensive games, my pc will often run smoothly at high fps then suddenly lock up the PC. I mean hard lock, basically crashing literally everything. I have already replaced Ram and Motherboard, but IDK what the problem would be from here. Of note, these crashes happen randomly, and under different GPU and CPU loads. They also happen in-browser as well as just in desktop sometimes. I do have eyeball measurements of FPS in games from before this started to happen till now, but its only in CS:GO and even match to match they are inconsistent. I replaced the motherboard because pop had been spilled on it. When replaced the parts the CPU and CPU cooler had no (visable) traces of pop anywhere on it, but the GPU does. Also during stress tests on CPU-Z, the CPU after about 5 mins of stress will go to about 50% usage in task manager and drop 50% score on the stress test. one test actually dropped 90% performance. I have GPU monitoring numbers from a crash i got while playing Shadow of Mordor in a windowed mode on ultra settings. If anyone has any help please let me know.
EDIT: In addition, when the crash occurs a rather obnoctious sound is blasted through what ever medium im listening through. This sound is like a loud buzz that is very consistent.
PC SPECS:
AMD FX 9590
Gigabyte 990FXA-UD3 R5 motherboard replaced 2 days ago (As of writing this)
Cooler Master 212 Evo CPU cooler
16gb HyperX Ram (don't know exact model)
VisionTek R9 290
Cooler Master EXtreme 2 725 watt power supply
2 case fans.
Western Digital Black 1tb Hard drive.
(dont know exact model of case, but it shouldnt matter)
If im missing anything here let me know

John_485 · Nov 20, 2016

Are you overclocking at all? Sounds like the CPU could be throttling and then locking up (due to heat?) but there's no way to be sure without checking things out for myself. Hopefully someone with experience with AMD systems will offer you some good advice.

How in the heck did you spill pop on the motherboard?

MrKatanaNinja · Nov 20, 2016

John_485 :

As far as I'm aware I'm not over clocking the CPU, it's actually under clocked alittle at 4.72ghz compared to the 4.8ghz base clock from the factory. If it is overheating then idk how it would be the CPU, because none of my temps that I have checked have the CPU going over 65 degrees. I mean I can check again but that's as far as I know. And I used to have my desktop on the ground placed overtop of a vent to allow for better airflow, and while playing either me or my brother bumped our pop of the table I was using to play and it hit the ground. In my case I had the side window off to allow for better airflow and the pop spilled in. The crashes started happening right around then, but it could be related to overheating

Autocrat · Nov 20, 2016

MrKatanaNinja :

John_485 :

As far as I'm aware I'm not over clocking the CPU, it's actually under clocked alittle at 4.72ghz compared to the 4.8ghz base clock from the factory. If it is overheating then idk how it would be the CPU, because none of my temps that I have checked have the CPU going over 65 degrees. I mean I can check again but that's as far as I know. And I used to have my desktop on the ground placed overtop of a vent to allow for better airflow, and while playing either me or my brother bumped our pop of the table I was using to play and it hit the ground. In my case I had the side window off to allow for better airflow and the pop spilled in. The crashes started happening right around then, but it could be related to overheating

What hardware did the pop hit? My best guess is that is where you will find the problem. Maybe the PSU as well.

MrKatanaNinja · Nov 20, 2016

Autocrat :

MrKatanaNinja :

What hardware did the pop hit? My best guess is that is where you will find the problem. Maybe the PSU as well.

I'm not leaving the PSU out of the equation yet, but from what I can see without tearing it apart, it doesnt look like anything is on the PSU. The pop to my knowledge hit the motherboard, GPU and Bottom of the case near the PSU. Ill look into this more but so far, nothing.

John_485 · Jan 30, 2017

Did you ever find out what the problem was? I suspect it was the pop that caused the problems. I was watching a Tech City Youtube video and the guy from Tech City was doing a budget build with used parts. He sprayed down the motherboard, the GPU, everything really with some sort of pressurized cleaner (maybe it was brake cleaner?). I'm not sure what he used but afterward all of the parts were super-clean and dry. Maybe you could go the same route to clean the pop off the mobo and GPU/processor. It definitely wouldn't hurt anything and I think it might solve the problem, as long as the soda didn't do any fatal damage. Just go to Youtube and find the Tech City guy and ask him what he used to clean off his mobo/processor and GPU.

Take it easy bro.

MrKatanaNinja · Jan 30, 2017

For the most part my computer seems to be working fine. Something that was possibly causing problems was turbo mode being enabled on the CPU in the BIOS. As soon as I turned that off the system hasn't crashed since. Idk if this was the problem, because I do get major framerate dips and "throttling" under continuous load for more than an hour. But for the most part, it's working and i can play all of my favorite games again.

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Problem with system randomly crashing under load. (and sometimes not under load)

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