Computer is rebooting under load, how can I know if its PSU or GPU?

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roeihahnnoyman

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Oct 17, 2017
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So my pc started crashing under heavy load, then it reboots back to Windows.
Ive reinstalled all drivers and it still crashing, even format my rig and nothing changed.

Im pretty sure its the GPU or the PSU.
How can I tell for sure? Should I run some games without the GPU (the ones I can run without one ofc) and if there is still a crash its the PSU?
*FYI* I cant get replacement since it will be hard to find some place that I can take a GPU or a PSU for testing.

The GPU (Asus 1070 Stix) managed to pass over 10 min of stress test in FurMark, and in some cases it crashed after 3 min.
CPU stress tests passed with no problem at all.

Any ideas what I can do? Thanks :D
 
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clarkjd

clarkjd

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Dec 7, 2005
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Welcome to Tom's!
What are your COMPLETE system specs(brand, make, model, etc) including your PSU? It is possible that your PSU is not strong enough to run the system as configured.

 
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wildcard1978

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Apr 15, 2015
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borrow a psu from a freind or test your card in a buddies system if ya can
or get a psu tester also checkign how much power your system need with a power supply calc also helps bee amazed how many peeps put in a power supply to small for what thier running
 
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wildcard1978

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ya could also try diffrent drivers to see if driver issue could be multiple things so trouible shoot make sure all ram seated correctly as well and run mem test programs to check just sayign its not always vid card and psu related ya got to trouble soot everythign one at a time
 
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roeihahnnoyman

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Oct 17, 2017
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im having an i7 4770 and 16GB ram. The PSU is an Antec 750W (its kinda overkill for this rig but thats what ive ended with). Ill say that ive played on this system for around 3 months with no problems at all.
 
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clarkjd

clarkjd

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Dec 7, 2005
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So this is new behavior being observed in a build that was working correctly up until now?

What, EXACT, model Antec 750w PSU do you have? Some are better than others! As suggested by others above, make sure that everything is seated correctly in the appropriate slots, and all connections are secure and tight.

 
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roeihahnnoyman

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Oct 17, 2017
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Well the PSU is the 750W "True Power Classic" if that tells you something..
About the cables ill look around to see if there is something not plugged in right, even tho ive did that not to long ago.
 
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