Question PC shuts down randomly ?

[Muffin1904]

Hello and good day everyone, I have had a problem of random shutdowns for a few months, my pc shuts down while idle or under load.

Shutdowns are sudden, sometimes it can stay on for around 12 hours without turning off but eventually it does.

When it turns off, the screen shows that no signal is detected and the fans and lights turn off as if it were a normal shutdown, it does not show me a blue screen, the only strange thing I have noticed is that a small usb screen connected to the motherboard to monitor temperatures is still on but shows the last record of the pc before it turned off.

It has happened to me with two power supplies, a Game Factor PSG650 (new) and a Thermaltake Smart 750w

I have checked the windows event log and get the following results:

I also have errors in the event viewer caused by a blue screen error which is always the same, I have it for years, I have never changed graphics card.

My computer temperatures never go above 50°C for the CPU and 78°C for the GPU, also I have used MemTest86 to rule out problems in the RAM and they always pass the test. I don't know if my graphics card is dying and that is causing my pc to shut down or the motherboard is slowly dying.

Before I built this pc with that Biostar motherboard I had a Gygabyte GA-970A-DS3P which started with problems on the front audio and usb ports and then it just wouldn't turn on anymore so I took it to a technician and he told me it was dead so I replaced almost all my components except the video card and Thermaltake power supply. When I switched components was 2 years ago and I didn't have this problem, Game Factor font was purchased and installed in March.

The specifications of my pc:

Motherboard: Biostar A320MH
RAM: 8GB Kingston FURY Beast DDR4, 2666MHz + 8GB Kingston HyperX DDR4, 2666MHz
CPU: Ryzen 5 2600
GPU: GTX 750ti, 2GB
CPU Cooler: Cooler Master 212 Evo

Thanks in advance.

 

[Lutfij]

Welcome to the forums, newcomer!

You forgot to mention the make and model of your chassis. As for your PSU, do you have access to anything more reliably built?

 

[Muffin1904]

My chassis is a Naceb Hydra Atx NA-0602 and at the moment I only have those two PSUs.

 

[Misgar]

To rule out problems with Windows drivers or corrupted files/Registry, I recommend a fresh installation of Windows on a 120GB 2.5" SATA SSD. These can be obtained for less than 15 dollars. Euros, pounds.

It's probably easier than buying a second-hand mobo, CPU, GPU, PSU or RAM and slowly replacing them until you find the culprit. By the time you've finished, you'll probably have enough parts to build another computer.

Do you know anyone with a box of spares who is willing to let you borrow them?

Have you checked the pins on the 2600 to see if they are all straight, with no signs of tarnishing or corrosion in the ZIF socket? This can happen in very humid environments. You'll need new TIM (thermal paste) if you remove the heatsink. Take care not to drop the CPU if you remove it from the socket!

Similarly, are the two rows of gold-plated DIMM contacts on clean? No dust or debris in the DIMM sockets?

Your small USB temperature monitoring screen probably derives its power from the 5VSB supply rail, which remains on until you switch off the ATX PSU at the rear panel or unplug it from the mains. The motherboard is always "live" when the PSU is connected to the mains, which is why it's not a good idea to unplug RAM, GPU, etc., without making sure the system really is switched off.

 

[pete_101]

I was thinking RAM is the most likely cause of random shutdowns, then I read your specs, and now I'm really thinking it's you RAM. You have 2 different sets of RAM in your system, this is usually a major issue....even the same RAM made at different times can be problematic.

I assume these are single 8GB sticks and not 2 kits of 2X4GB? If so, this makes remove one to test the system difficult as you lose dual channel, but it might be worth trying.

 

[Muffin1904]

I was thinking RAM is the most likely cause of random shutdowns, then I read your specs, and now I'm really thinking it's you RAM. You have 2 different sets of RAM in your system, this is usually a major issue....even the same RAM made at different times can be problematic.

I assume these are single 8GB sticks and not 2 kits of 2X4GB? If so, this makes remove one to test the system difficult as you lose dual channel, but it might be worth trying.

I used MemTest86 to test the RAM and the tests passed. Since I installed the RAM I have never had any failures.

 

[Muffin1904]

To rule out problems with Windows drivers or corrupted files/Registry, I recommend a fresh installation of Windows on a 120GB 2.5" SATA SSD. These can be obtained for less than 15 dollars. Euros, pounds.

It's probably easier than buying a second-hand mobo, CPU, GPU, PSU or RAM and slowly replacing them until you find the culprit. By the time you've finished, you'll probably have enough parts to build another computer.

Do you know anyone with a box of spares who is willing to let you borrow them?

Have you checked the pins on the 2600 to see if they are all straight, with no signs of tarnishing or corrosion in the ZIF socket? This can happen in very humid environments. You'll need new TIM (thermal paste) if you remove the heatsink. Take care not to drop the CPU if you remove it from the socket!

Similarly, are the two rows of gold-plated DIMM contacts on clean? No dust or debris in the DIMM sockets?

Your small USB temperature monitoring screen probably derives its power from the 5VSB supply rail, which remains on until you switch off the ATX PSU at the rear panel or unplug it from the mains. The motherboard is always "live" when the PSU is connected to the mains, which is why it's not a good idea to unplug RAM, GPU, etc., without making sure the system really is switched off.

I haven't had time to do a clean install of Windows. Also, all my pc is clean and what I tried days ago was to remove the video card and turn on the pc, curiously it lasted 32 hours on without turning off until I turned it off to connect the graphics card again.

 

[Misgar]

A clean install on a spare drive up to the Windows Desktop screen takes me less than one hour. Checking for any uninstalled drivers, loading a few important programs and tweaking Windows the way I like it, another hour.

After two hours I'm ready to run diagnostics on a system that's misbehaving. It's worth spending a couple of hours to create a clean system without any uneccessary clutter, that might be causing the problem.

Good luck.

 

[Muffin1904]

A clean install on a spare drive up to the Windows Desktop screen takes me less than one hour. Checking for any uninstalled drivers, loading a few important programs and tweaking Windows the way I like it, another hour.

After two hours I'm ready to run diagnostics on a system that's misbehaving. It's worth spending a couple of hours to create a clean system without any uneccessary clutter, that might be causing the problem.

Good luck.

I did a clean install on June 27th, updated the drivers first using DDU and it seemed to work fine, it hadn't shut down twice to this day. I'm thinking that the possible problem is in the GPU or the motherboard but I'm not really sure since I don't have parts to test.