Question Computer restarts randomly while working with graphics

Aug 25, 2019
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Hello
I am fighting with this awkward problem for a few days now
I have the following configuration (rather old already):

  • Intel Core I5 750
  • Motherboard ASUS P7P55DLE
  • RAM - 4 x 2GB DDR3
  • Radeon R9 380 4GB (the video card was bought second hand an year ago)
  • SSD + 2 x HDD 7200rpm
  • PSU Chieftec GPS-550AB A
  • Windows 7
My computer hangs (black screen and then restarts by itself) randomly several times a day
I can easily reproduce this by running Heaven Benchmark 4.0 in DirectX mode (in OpenGL mode it runs without problems. Valley benchmarks runs normally in DirectX mode)
I can also reproduce it in DaVinci Resolve video editor, by playing some time with the sliders - forwarding video clip forth and back (which should be much less stressful compared to Heaven benchmark)

What I tried until now:
  • MemTest86 for a long period of time- no problems found
  • Prime95 for a long period of time - no problems found
  • Some tests for the SSD
  • I used DDU to remove my videocard drivers and reinstalled them
  • I even asked a PC technician to test my PSU and according to him - it is ok and this is probably "some kind of software problem"...
  • I did not find any way to force reinstall DirectX in Win 7 - it always says that I have the latest version (even if I do a registry hack and put some older version in HKEY_LOCAL_MACHINE\Software\Microsoft\DirectX\Version)
I am lost now. I do not know how to verify if my GPU is defective or I have some software problem...
Any help would be appreciated :rolleyes:
 

Ketchup79

Upstanding
Aug 7, 2019
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Sounds like video card or power supply. As stated, the power supply is very low quality and will not sustain the power rating as it gets warmed up. I would replace it first, as it should be replaced, whether or not it is causing your current issue.
 
Aug 25, 2019
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Sounds like video card or power supply. As stated, the power supply is very low quality and will not sustain the power rating as it gets warmed up. I would replace it first, as it should be replaced, whether or not it is causing your current issue.
Yesterday I noticed how easy is to reproduce the problem in DaVinci Resolve Video editor only by running some video processing for a minute or two - the computer restarts. The temperature of the GPU is around 55 Celsius at that time, so the heat is not an issue (compared to when running Heaven benchark for a prolonged period of time). I noticed that if I underclock my GPU using MSI afterburner from 918/1375 to 860/1288, the computer stops restarting when doing video processing in Resolve...
Any ideas?
 

Ketchup79

Upstanding
Aug 7, 2019
419
33
220
4
Yesterday I noticed how easy is to reproduce the problem in DaVinci Resolve Video editor only by running some video processing for a minute or two - the computer restarts. The temperature of the GPU is around 55 Celsius at that time, so the heat is not an issue (compared to when running Heaven benchark for a prolonged period of time). I noticed that if I underclock my GPU using MSI afterburner from 918/1375 to 860/1288, the computer stops restarting when doing video processing in Resolve...
Any ideas?
Yes. Less power consumption for the power supply would be one thing.
 
Aug 25, 2019
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Ok. I may buy a new PSU in this case. The problem is that a good PSU will probably cost more than my whole current cofiguration :)
But may be I can buy it now, and use it also in the future when I decide to buy a new configuration...
What PSU would be ok with my current configuration but will also work with something like Ryzen 3600 + GeForce RTX 2070 in the future?
 

Ketchup79

Upstanding
Aug 7, 2019
419
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I would go 600 watts to be safe.
Good brands (in my opinion) are:

EVGA
Corsair (careful with their budget line)
SeaSonic
Cooler Master (careful with their budget line)
Antec (not their budget line)
NZXT
XFX
 

Third-Eye

Distinguished
Jun 26, 2011
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Yesterday I noticed how easy is to reproduce the problem in DaVinci Resolve Video editor only by running some video processing for a minute or two - the computer restarts. The temperature of the GPU is around 55 Celsius at that time, so the heat is not an issue (compared to when running Heaven benchark for a prolonged period of time). I noticed that if I underclock my GPU using MSI afterburner from 918/1375 to 860/1288, the computer stops restarting when doing video processing in Resolve...
Any ideas?
Pretty much confirmed here and by others that you need a better power supply. I've actually experienced a similar thing with a GTX 460 768MB in my HTPC back in 2009-10. Would reboot unless I underclocked the video card If I pushed it too hard. I got a Corsair 650watt and the problem went away.
 

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