Freezing PC

[Eroleroice]

Hello! I will start with my computer specifications (I know about the bottleneck, it's a long story, I'll upgrade most of the components in the next months):

FX 8320 - stock cooler
Gigabyte 970A-DS3P MB
RTX 2060 SUPER
8 GB RAM HyperX ~1600MHz
1 SSD 250 SATA and 1 HDD 500 SATA
PSU corsair vs550 80+
Case SilentiumPC Regnum RG4T RGB Pure Black

 

During the last months I had a strange thing, somtimes my PC was freezing(but the mouse was still responding and I was able to move through the tabs for the first seconds, then only the cursor was moving. If I tried closing chrome for example, chrome would be not responding and the page would go grey. If I had chrome opened for example, in the bottom left side I was seeing 'waiting for cache'. The freeze was there for about 10-20 seconds, then everything would work properly.

About a week ago I had to reinstall my OS thanks to an app that corrupted my old W7. Now I've got W10. It was weird because when I preparing the ISO to install the new OS, I went and cleaned my case of dust and changed thermal paste. I wasn't getting any signal on my screens. After troubleshooting, I realised that my PCI Express x16 wasn't communicating with my GPU properly. I tested with an old R9 280X and it works with that.Now I'm using the second x16 slot, running at x4. After installing everything, I was getting contant freezes(even when having only one chrome tab or just discord), can't remember 100% sure, but I think the cursor wasn't moving at all. Changed the SATA cable for my SSD and I wasn't getting them anymore. But, I still get freezes, and now they are literally crashing my PC. Even if I wait 10 minutes, it will stay frozen. Nothing responding from the first moment, no sound, no moving cursor, no key commands working. I have to force restart my PC using the button. Nothing in event viewer telling my why it crashed. Also, sometimes, my PC just restarts by itself. Again, nothing in event viewer. Temperatures are okay, checked the air that's coming from the PSU, it's not hot at all. Both the freeze and the restart are happening at random moments, even when I'm mostly idling, or stressing the PC.

Haven't done any recent configuration changes, I only added a second screen 1-2 months ago.

The only BSOD I got was today after my PC restarted by itself, when it was booting. The error message was "page fault in nonpaged area". Windows checked the partitions, saw that in event viewer, everything is okay. Checked memory for errors, also checked all the partitions again, everything ok.

Also, all the programs that I'm using are installed on the SSD, haven't touched any files from the HDD( I didn't format the HDD during the installation of the new OS ). 

The thing is, I can't afford any new components until black friday, or at least, I can't afford MB+CPU+RAM. The only thing I can get is a new PSU if that could be the cause, but I really have no idea. Does anyone have any suggestions?

Thank you!