HD7870/Corsair CX600M PC rebooting issue

Hello,

Specs:
MoBo - Gigabyte GA-880GM-UD2H
CPU - AMD Phenom II X4 965 3.4GHz
RAM - Kingston Hyper-X blu, 8GB
GPU - Radeon HD5770(old test)/Sapphire Radeon HD 7870 GHz Edition
HDD - 466GB Seagate
PSU - Corsair CX600M

While playing games with said HD7870, my system has begun to restart itself, no error message just cuts out then reboots. At first I thought it was the processor overheating however the temperatures never
exceed 70C on load.

I ran 'MdSched.exe', but no faults were found with the RAM.

So I decided to switch out, back to my old HD5770 and after somewhat extensive
replaying on my old GPU the problem did not present itself. I then changed back
to the 7870 and the problem returned, I tried adjusting the fans to 100% to rule
out overheating as a cause but still the problem presented itself.

By process of elimination I'm assuming it's the power supply/GPU relationship, however from what I can tell it's got the 7870 covered in regards to both wattage requirements and amperage, so I'm not sure why.

Could it be motherboard related in any way, or am I just being stupid?

Any help is appreciated as I'm stumped. Thank you for your time.

With regards,

Ed Barnard

P.S. Sorry if this is posted in the wrong subforum
3 answers Last reply
More about hd7870 corsair cx600m rebooting issue
  1. I have the same PSU running 2 gtx 660's in sli and never had a problem. So outside of the PSU being defective, you're good there.

    Does this issue happen in all games or just one? What drivers are you using?
  2. Well, I've recently only been playing DotA and Guild Wars 2 and it happens in both. Drivers are up to date Catalyst 13.1.

    Maybe it is overheating then. Is there a program that records temperatures, voltages etc. ?
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