AnsweredAssumed Answered

Random blackscreen/crash/freezes

Question asked by timk on Mar 23, 2017
Latest reply on Mar 24, 2017 by timk

Hi there,

My Pc recently started randomly freezing -> into blackscreen (no signal) -> into crash, In Desktop mode as well as in games.

I have an AMD HD 7870 gpu.

Now I am trying to find out what is causing it. Hardware vs Software. Any help is appreciated.


i5 3570k

HD7870 (equivalent to R9 270X)

Driver: 17.2.1

2x4 GB (8GB) Ram

Win10 64bit


I used my cpu and gpu overclocked for 5 years with no issues, until now. Is it possible that cpu or gpu is dying?


I tested:

  1. Prime95 ~2hours = no errors
  2. Furmark ~30min= no error
  3. memtest ~ 6hours= no errors
  4. memtest86+ (dos) = no errors

^^Yet the PC randomly crashes, then blackscreens. I tryied an older WHQL driver 16.10.1, which didn't help, still random blackscreens.

Btw. temperatures are fine, under load cpu (max. 70°C) and gpu (max. 80°C)


I overclocked my DRAM once just for testing purposes and increased voltage from 1.5v to 1.6v. Is it possible that overclocking the dram damaged the memory controller inside the intel cpu? If so, would that cause the symptoms that I'm having right now (random blackscreen/crash) ?


Unfortunately I dont have a second graphicscard to replace and test if the gpu is broken.


Edit: Is it possible, that any of the following can cause blackscreens?

Note: I used this PC for about 5 years with no problem.

  • Mainboard
  • Asus PCIe Sound Card
  • Bequiet 580w PSU
  • SSD (Windows)
  • 2x HDD
  • Windows 10


What is causing the blackscreen /crash? I have no idea.

Thanks in advance.