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PSU going bad?

Last response: in Components
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July 20, 2014 9:30:52 AM

So about a week ago, I was typing a solution here on Tom's and my computer just shuts off.. reboots instantly into safe boot prompt. Booted normally and it hasn't happened again.

I did notice that the video card was really the only thing that noticeably shut off, everything kept on except for the GPU. Not a stutter in fan speed.

So how do I go about finding the cause of that reboot?
I've stress tested CPU and GPU, looking into memtest86 to test the RAM.


-FX-8350 cooled by H100i
-Asus Sabertooth 990FX R2
-Sapphire R9 270X toxic
-G.skill sniper ddr3 1866
-Thermaltake 850W Smart M series
-Corsair 600T case
-Samsung 128Gb Evo SSD
-Seagate 1000GB HDD

More about : psu bad

July 20, 2014 9:43:02 AM

The only component that I really lack confidence in is the PSU.
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a c 147 ) Power supply
a b Ĉ ASUS
July 20, 2014 9:43:59 AM

Do you have a safe overclock?

Stress test with occt.

I might suspect the psu or the graphics card.
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a c 2321 ) Power supply
a c 343 Ĉ ASUS
July 20, 2014 9:44:29 AM

I agree Thermaltake makes horrible supplies.
REPLACE it.
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July 20, 2014 10:06:02 AM

Currently running at stock core speed with voltages bumped just a tad, was seeing some failures with prime95 at stock..

I'm already looking for a new PSU. Have the AX860 in my sights due to it's fully modular design, worried about the fan though. Spinning only under load it may provide extra noise.

any suggestions?

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a c 2321 ) Power supply
a c 343 Ĉ ASUS
July 20, 2014 10:43:44 AM

EVGA 850 G2
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July 20, 2014 11:02:25 AM

On it's way.
as well as the red sleeved cables :D 

Thank you Gentlemen.
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