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Pc randomly crashes, fans keep working, power button does nothing

zackwi

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Joined
Mar 23, 2022
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Hello, I’ve been having this problem for months and have not been able to find a solution.

When
My pc randomly crashes. It can happen while I game, browse the internet or just go through folders on desktop. But most of the time it will happen while editing (Premiere Pro). Sometimes it may happen 1-2 times a week, but other times if heavy editing, can happen multiple times during the day.

How
Screens go off, no signal shows on all 3. All RGB keep working but go to default colour ignoring their software settings. Fans keep working. If they were on high speed, they go back to normal speed. 10% of the times, pc will freeze for 5-10 seconds before doing the above. Every time this happens, power and restart button on my case stop working. Only way to stop and start again is by PSU switch.

Speculation
No idea if any of these are important, but worth noting.

Mobo is the oldest model that supports my cpu and only after a BIOS update.

My PSU is 650W, powering 3 ssds 2 hdds, a 3070 rtx, ryzen 5900x and nzxt cooler.

I don’t thing heating is an issue. It has happen during high temperatures but most of the time it will happen on very normal ones.

One HDD is like 6 years old. Its the largest one so I have desktop running on it. All files are stored on this one. Software and games are on my ssds. When editing, premiere runs on ssd but editing files from hdd

When it happens, looks like it goes in sleep mode (due to fans working, rgb going on default colours, no signal on monitors) but nothing can wake it up.

What I have tried
Turning it off and on again…
Checking for viruses
Updating all drivers including BIOS
Clean with CCleaner
Re-installing all software + games
Updating Premiere Pro
Formatting my pc and re-installing windows
Changing RAM
Changing PSU cable
Changing surge protector/overload protector power extension
Checking for crash reports (nothing)
Changing pc power settings
Changing sleep mode settings

Setup
-RTX 3070 founders edition 8gb
-Ryzen 5900x 12 core 3.70 Ghz
-Mobo MSI x470 Gaming Pro
-32gb RAM corsair vengeance pro ddr4 3600MHz C18
-Corsair CV650 80 PLUS Bronze PSU
-1 crucial p2 ssd. 2 kingston A400 ssds
-2 seagate hdds
-nzxt kraken m22 cooler
-Two 1080p acer monitors + a 4k acer monitor

I do not have spare components to try things out so I really hope the above info can draw a picture of the issue. Any suggestions and help is highly appreciated.
Thank you

(edit: fixed PSU model)
 
Last edited:
Are you running everything at stock or have you tried tweaking the RAM... or tweaked things using Ryzen master?
 
probably about time to get a new power supply. Thats probably your culprit
 
Hard to say...sounds like power or heating issue - system is locking up or shutting off.

Try to simplify things. If you don't have spare hardware to swap for testing, try bringing the system down to more of a barebones setup. Doing this will help with a couple of things:
1) reduce overall power draw
2) remove extra components from the picture so you have a better idea of what isn't causing the problem

I'd just drop things down to 1 stick of RAM, using 1 monitor and only using whatever drive your OS is installed on (unless you need another HDD that houses programs you use). Then go about using your system like you normally do and see if the problem continues.
 
Likely mobo or PSU, in that order.
The fact reset stops working strongly suggests mobo.
 
Check if there aren't any loose PSU connectors that can contact metal of the case.
 
Which TX650M, and how old is it?
 
probably about time to get a new power supply. Thats probably your culprit
thank you, have gotten this response a lot from friends as well so it will probably be my next move

Hard to say...sounds like power or heating issue - system is locking up or shutting off.

Try to simplify things. If you don't have spare hardware to swap for testing, try bringing the system down to more of a barebones setup. Doing this will help with a couple of things:
1) reduce overall power draw
2) remove extra components from the picture so you have a better idea of what isn't causing the problem

I'd just drop things down to 1 stick of RAM, using 1 monitor and only using whatever drive your OS is installed on (unless you need another HDD that houses programs you use). Then go about using your system like you normally do and see if the problem continues.
Great suggestion. I'll try that for sure, thank you

Which TX650M, and how old is it?
Actually just checked and I was wrong! It's Corsair CV650 80 PLUS Bronze
 
Changing PSU cable
Changing cable, but not the PSU itself.

AFAIAC, every and anyone willing to do any maintenance on a computer (or has been designated as the family or neighborhood goto person for computer problems) should have a decent, known good PSU available to swap in for testing.

Since everything inside the case depends on good, clean, stable power, you need to verify you are providing it - ESPECIALLY before spending money on anything else, like a motherboard.

In your case, if you can swap out a PSU cable, you can swap out a PSU.

If the second PSU does the same thing, then at least you have eliminated the PSU as the problem - a critical first step in troubleshooting potential hardware problems.

And FTR, CV is the Corsair "value" line - essentially, about as "entry level" as you can get. If the barebones steps neatfeatguy suggested does not help, then I recommend you buy a quality supply and swap that in, leave it in, then save the CV650 as your spare. I like EVGA or Seasonic "Gold" supplies.
 
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