If you follow the instructions found in the guide I posted above (post #18) that will be great. You'll see that to run Memtest86 you'll need to burn the app to disk or usb then boot from it. The RAM is tested outside of the windows environment so cannot be affected by bsod.
For the CPU I used prime95 and memt est runs for 13,5 hours now, no errors, 7 passes. Should I stop the memt est? The computer crashes normally within 10 minutes after the start, I think the error would've shown up by now if it was the RAM.
Something very weird happend right now, I'll try to explain.
So, my screen froze again, 1 second freeze then black screen, I unplugged my android, it worked again, frooze, I open task manager, works again. Now I'm here, it didn't crash, while I was writing this Google Chrome froze, I could use my mouse, 3 seconds after that, black screen "AMD Driver stopped to work" and now I'm here again. No crash.... weird.
Maybe that helps to categorize the problem. It's the AMD Driver that stops to work... and my PC just crashed while writing this, it saved the message though, so I am able to write it on my phone.
It sounds like the RAM is ok so yes stop testing.
Do you have all the power cables plugged into the motherboard? There's two a 24pin and a 4pin. Just make sure that nothing is down inside the the connectors and that the connectors are snapping together nicely.
What else do you have connected to the pc via USB?
Connected to the pc are: A mouse, a keyboard, a graphictablet (turned off though) and when I'm recharging my phone its connected too. Just tested something, when I start the pc and stay in the windows login screen (when you have to write your password and choose the user) the pc does not crash at all. One hour, no crash. Gonna look if the motherboard is connected properly, I think it is though...
So, I logged in into WIndows and did nothing (not even moving the mouse). No crash, I left it 40 minutes (which is weird, because the last card did crash right after windows start sometimes). I'm gonna check the motherboard now, after that, I will run the PC like I did before for 3 hours (because I'm going out) and see if it crashed.
When you re-installed windows was either the graphic tablet or your phone plugged in at the time? Also have you tried booting into safe mode and see if it crashes? To get into safe mode keep pressing F8 when booting up and you'll get to the advanced boot option menu.
No, safemode never crashes, I guess because the graphics driver is disabled. And yes, the graphic tablet was plugged in but turned off when I reinstalled windows. I think it has to do something with the voltage... maybe the gpu is eating or reserving to much and causes some issues with the drivers, which cause problems with the hardware, which cause the hardware crash... I don't know. What should I do next?
Something causes the AMD driver to crash and this causes the PC to crash. I had again "AMD driver stopped working" after a few seconds freeze and then it crashed. It is linked with my graphics card somehow...
I think I fixed it... what I did:
I wanted to take some pictures of the motherboard etc. so I opened the pc. I saw that the connectors of the graphics card were not plugged in right. I corrected it and saw that the cable probably moved when I closed the pc. So I figured, why not start the pc without it. And here I am, played skyrim for 30 minutes, running everything perfectly. So, there are two possibilities I can think of:
1. It was the cable that moved out of position everytime I closed the pc
2. It's somehow a heat problem
It could well be that the connectors not being together properly were the cause. I thought it was odd when the situation didn't change when applying the PSU as all the clues pointed in that direction.. See how you go and I'll keep my fingers crossed for you..
Oh and regarding the graphics tablet or anything for that matter USB wise. When you install Windows these must be unplugged as it can cause issues. So at some point in the future when you decide to reformat make sure you re-install without anything plugged in apart from keyboard and mouse (they are known as whats called 'plug and play' devices and use a particular set of drivers which don't cause the same issues)
Hm, it started crashing again when I started the pc today. Yesterday after I open the case it worked for 7hours without a crash. Now it's crashing every 5mins again. I closed the case when I went to bed, maybe that's why. But the connecter look plugged in, I'll try to fix it somehow.
Ok, I think I fixed it again, it has to stay in a very certain position, otherwhise it crashes. I don't think I can close the case, one little touch and the connectors move out of position. I wonder who designed that...
These are the connectors into the GPU yes? If so they should really close with a definite 'snap' or 'click'. Is it possible for you to take a photo of the connectors or the actual connection itself with the the lead connected?
Well they look like they are in ok, thanks for posting the photo.
Reading through the thread again remember how you tested the CPU with Prime95 and it eventually crashed. Let's try an experiment, put your old card back in and run prime95 again. I just want to ascertain whether it's the GPU thats effecting the CPU or it's the CPU regardless of what GPU is in the system.
Please monitor temps again.
Also just so we can rule it out please run a chkdsk. HDD faults can sometimes manifest the symptoms you describe (as can bad RAM but we've been there, done that) See post #18 on how to run a chkdsk.