r/pctroubleshooting

It's a complex case of a PC that works but turns itself off every time in like 40-60 minutes of use.

To start things off, it's a simple/humble build that I use cause I'm from the 3rd world. I'm going to separate the build, then what I tried and some other info that I think is pertinent.

The build:

CPU: i5 - 2500k

Motherboard: ASUS P8H61-M LX

Ram: 16gb DDR3 (2 Sticks of 8gb)

Storage: 2 HDD's (500gb empty) (320gb main)

GPU: AMD Radeon HD 5570 (1gb)

Here's what I already tried:

I've tried switching the RAMs, I've tried cleaning them with an eraser (the right way).

Tried another motherboard with another CPU (i3 550k), didn't work.

I thought it was the HDD but I added a new one and still same issue. (Yes, I've tried them individually like most of the parts)

I've tried taking the GPU off, same issue.

I've tried taking the Power button off, yes, a friend of mine told me that it could be the case cause it had happened to him.

Just so y'all know, none of the parts are overheating and thermal paste has been added in the processor and even in that lil part that has two plastic pins that lock a heat dissipator.

I've switched the PSU thinking it would help... It didn't.

I've switched cables for the PSU, still nun.

I've switched the Outlet as well (in another room)

It's not a timer or something like that, I've tried looking for everything related, found nothing.

That's pretty much it. At the moment I'm trying to fix something that I think might have something to do with that. My HDD is almost always at 100% use, my friend is helping me.

Also, whenever it's close to turning itself off, the HDD that's empty always turns it off first (you can hear it) and then after a few seconds the whole thing shutdown.

Anyways, if you're a tech god, I hope you understand that I'm not a tech god. I'm as dumb as a rock, but I'm really trying.

I'm having issues with my PC and decided to perform a factory reset. My Windows 11 installation became corrupted, and after exhausting other troubleshooting options, I attempted a clean installation using a bootable USB. Unfortunately, the system consistently freezes during Windows Setup. But it didn't freeze at all if I waited at the BIOS screen.

The freeze can occur at almost any point in the installation process. If I move through the setup screens quickly and start the installation, it typically reaches around 10% before hard-freezing. When this happens, the entire system becomes unresponsive, including the mouse and keyboard, and I have to hold the power button to force a shutdown.

Troubleshooting I've Already Tried
Removed the CMOS battery for approximately 10 minutes and reinstalled it.
Reseated the RAM.
Moved the RAM to a different slot.
Removed the SSD to test whether the issue persisted (it still froze).
Reset BIOS settings to default.
Experimented with various BIOS settings.
Updated the BIOS to the latest version.
Recreated the Windows 11 installation USB three separate times.
Loaded BIOS optimized defaults after the BIOS update.
Taking out GPU
Using half of the RAM
Despite all of this, the problem remains unchanged.

Additional Information
Before attempting the reset, the computer occasionally experienced brief freezes while running Windows. The system would normally recover after a second or two and continue working. Now that Windows is no longer functioning, I'm wondering if the underlying issue has become more apparent.
At this point I'm suspecting either faulty RAM or a motherboard firmware issues

System Specs
Motherboard: ASUS PRIME A520M-K
CPU: AMD Ryzen 7 5700G
RAM: 16GB DDR4-3200 (1×16GB)
Storage: 1TB Solidigm NVMe SSD
Graphics Card: NVIDIA GeForce RTX series GPU

Has anyone experienced similar symptoms or have suggestions on what hardware component I should test next? I'm completely out of ideas here.

I need help trying to fix my new pc it has an Asus rog crosshair x870 e hero amd motherboard, amd ryzen 9900x3d PCU, Asus tuff Radeon 9070xt GPU, Asus rog strict 1200w, and CORSAIR Vengeance RGB DDR5 RAM 32GB. Every time boot up my pc it will have a fragmentation glitch on the screen, and it will either post or won’t. If it doesn’t I press the flex key on the motherboard and then it will post. Is there any way you can help me?