Strange Issue

[UserSTDa]

Hello there.

I'll start apologizing for bad English, but I hope someone can help me. The issue is long so please if you want to help read carefully, I'll try to reply ASAP. First things first, my scenario consists of 2 desktops, which I call PC1 and PC2, with the following specs.

PC1:

Processor: Intel core i5 750 @ 2.66GHz.
Memory: 2x 2GB DIMM DDR3
Power supply: A generic one not labeled; OR EVGA 430W 100-W1-0430-KR
GPU: GeForce 8600 GT, 256mb; OR Geforce 8400 GS, 256mb; OR GeForce GT 730 1GB
MotherBoard: Gigabyte, can't remember the model, but was a simple micro-ATX

PC2:

Processor: Intel core i3 2100 @ 3.10GHz
Memory: 2x 2GB DIMM DDR3 (the same ones from PC1)
Power supply: EVGA 430W 100-W1-0430-KR (same from PC1)
GPU: GeForce 450 GTS, 1GB; OR Geforce 8400 GS, 256mb (same from PC1)
Motherboard: mw-h61h2-m2

With the above info, let me explain my issue. I'll separe things by time periods.

PC1, usage from early 2012 to January 2018
Back in 2014 (quite a long time) the fan of my GeForce 8600 GT stopped spinning, so It obviously started to run hot, but I realized that in time and replaced that with a old 8400GS. I used this 8400 GS for like 3 months. By that time I saved some money and bought a GeForce GT 730. Everything went fine for like 1~2 months, when my old LCD monitor (let's call M1) slowly stopped to display image then it finally died. So I replaced for a old CRT (monitor M2) one ( hell yeah), so after 1 week I replaced with a new (although used) LCD one (monitor M3). But nothing was easy on the year of 2015, then one day I turned my pc on and it did three long beeps, meaning video error by the motherboard manual. So my like 3 months of usage GeForce GT 730 "JUST DIED", because I could run normally with the old 8600GT and the 8400GS.

Then I kept the pc running with the 8400GS. Then, a few days after the GT 730 died, the fan of the 8400GS wasn't spinning and it kept for 15 minutes or so (at 100º) , and then it just started spinning. This weird thing kept happening everyday only on the first pc startup. But gaming on a 8400GS is painfull so I tried to plug my GT 730,and guess what? IT JUST WORKED. But for only 1 day, the next day on the first startup the same three long beep error. So I swapped back to the 8400 GS and it runs fine.

A few weeks, I tried something "weird", after waiting for the 8400GS fan to start spinning I swapped to the GT 730 and guess what again? IT WORKED. This made me think that my PSU (the non-labeled one) was faulty, so I bought a EVGA 430W 100-W1-0430-KR. But the same problems kept happening. Than I learned something even more weird, everyday on the first startup I just left the PC1 "dead" for 5 minutes, then I just press the reset and "voila" it works. BUT nothing last forever and the GT 730 present the error code 43 on windows, and after a few pc restarts it just crashed forever. Then I kept with the 8400GS for like 1 year, making me think that the problem was my motherboard. or some weird eletrical problem on my residence. I moved up in 2017 and the error kept hapenning. Then at January 2018 my cousin asked me to play some online game with him, but I could not because my 8400GS could not run the game. So I explained him all the previous situation. He said "no big deal" I have a spare GeForce 450 GTS. When we pluged that on PC1 it didn't showed video. The he said "no big deal" I have a spare core i3 2100 and it's motherboard, and that was when PC2 shows up.

January 2018~present

When he brought the PC2 I thought "THIS HELL WILL BE OVER NOW". Then we moved my old the RAM from PC1 and the PSU (EVGA) from PC1. Everything went well, but for 1 day. The next morning the PC2 booted normaly, but windows was constantly having a "driver stopped responding error", so I could not play anything, not even browse the web. I thought maybe, but just MAYBE the HDD of PC2 is screwed, so I replaced with the HDD of PC1. It kept screwed. So I told my cousin to take his PC back because it was broken. The next day before he coming to take PC2 back I tried to power it up, and guess what? IT WORKED FINE as if nothing had ever happened. But after every restart it acted like the PC1, dead for 5 minutes then I reset and it worked fine. Well I lived with it for like 2 years. The 2 days ago the GTS 450 started to present some strange artifacts, so I said screw it I'll use the integrated graphics of my i3 2100. BUT, today, yeah my friends... I had to restart my PC and now it just died I can get video, but my HDD isn't dysplayed on bios, sometimes the entire pc freeze.

Some extra things. The case from PC1 isn't the same from PC2. For over 4 years I have one strange thermal problem, my processor (i5 750 and i3 2100) runs for like 55º on idle and can reach much higher temps on gaming. For the last 2 years my i3 had to run on 50% of it's capacity for not overheat. We exchanged the thermal paste like 3 times and no success. My thoughts are on my EVGA PSU, but the issues began before I bought it. I used to use a no-break on my pc, but I am not using it anymore (the no-break was my second thought). The last one is my LCD monitor that MAYBE, but MAYBE is killing every graphics unit connected to it. The RAM memory? I don't know if RAM can crash an entire system.

I have a new PC, a ryzen 5 with diferent RAM, SSD and a new case, but I'm not going to assemble it before I solve this issue, and now my HDD is probably dead. I really, really need some help here with this bizarre "curse" on me.

 

[tobeornottobealttfan]

RAM's can brick some PC. (At least that is what happened to my last one). I'll recommend borrowing some RAM from your cousin (or even buying a 2GB DDR3) and trying with Ubuntu. 
While all this happened did you ever re-install Windows?

[tobeornottobealttfan]

Also if you're planning to use your power supply in your new (Ryzen 5) system, be sure to get it thoroughly checked by some retail shops . By that I don't mean plugging in to a different computer, I meant checking its voltages and currents through multimetres  and stuff.

[UserSTDa]

5 hours ago, tobeornottobealttfan said:

RAM's can brick some PC. (At least that is what happened to my last one). I'll recommend borrowing some RAM from your cousin (or even buying a 2GB DDR3) and trying with Ubuntu. 
While all this happened did you ever re-install Windows?

Hi. Thanks for replying.

 

Yeah the RAM is one of my suspects. The new ryzen will not be in touch with these RAMs so I will not mind. An yes I re-installed the windows multiple times, even changed from win7 to win10 (in 2019). Never tried ubuntu, but I have no hdd anymore.  BUT, curiously I used win7 on PC1 and just moved that old OS to PC2 via the hdd (updated the drivers ofc), you think something inside the old  OS killed both PCs? I mean all I ever did was install games from steam or whatever.

[UserSTDa]

5 hours ago, tobeornottobealttfan said:

Also if you're planning to use your power supply in your new (Ryzen 5) system, be sure to get it thoroughly checked by some retail shops . By that I don't mean plugging in to a different computer, I meant checking its voltages and currents through multimetres  and stuff.

I did a voltage check yesterday, and they are all ok tho. I mean those are my results:

 

 

All +5v did 5.13 on multimeter

All +3.3v did 3.37 on multimeter

All +12v did 12.13 on multimeter

 

Can I test its currents by home? with a multimeter?

[tobeornottobealttfan]

18 hours ago, UserSTDa said:

Can I test its currents by home? with a multimeter?

You obviously can but you have to understand the result. I have no idea regarding this case so I'll be of no help to you

 

19 hours ago, UserSTDa said:

you think something inside the old  OS killed both PCs? I mean all I ever did was install games from steam or whatever.

 Very unlikely but at this point we cannot leave any suspect untouched...
Also messy wirings at your place can cause carious all sorts of weird anomaly.