PC turns on by PSU switch then goes off after 5 seconds

Aug 16, 2018
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Hi guys,

First post here :)

Tried searching for this issue but none are quite the same as this. So firstly, specs are as follows:

CPU: Ryzen 5 1600
CPU FAN: AMD Wraith Spire
GPU: ASUS GTX 960 STRIX 4GB OC
RAM: 16GB DDR4 Corsair Vengeance
MOBO: ASUS Prime B350M-A
SSD: 240GB Kingston
HDD: 2TB WD
PSU: Aero Cool Integrator 500W
CASE: Corsair Carbide Series SPEC-01

Okay so the issue occurred after taking out all the parts of my PC and putting them into a new case. Everything is the exact same except for the addition of an SSD.

The issue is when the PSU switch is turned on, the PC powers up instantly, then goes off after about 5 seconds and wont switch back on via the power switch on the front panel. My first thought was the front panel IO was plugged in incorrectly so I unplugged all them and still the PSU powers the PC on straight away. Motherboard is on all the brass pins so shouldn't be shorting by touching the case at all. Went through all the cables to make sure they were in the correct way, re-seated properly etc.

My only thought now is that the PSU or Motherboard has failed during the swap to the new case because the PC was fine before and no parts have changed.

Any ideas or simple tests I can do?

Many thanks,
Sam
 
Aug 16, 2018
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I have been running this PSU for a good couple of years with no issues though? I will upgrade it when I can but can it have fried my motherboard since the change of case even though it was running fine before?

Thank you for the response though I will definitely look at getting a Corsair PSU!
 
Aug 16, 2018
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Still strange that it would only fail after a case swap... but awesome, I will keep this open in case anyone else has any other suggestions, but will update and close if the PSU change fixes the problem :) thanks again!
 

Ad Murray

Reputable
Aug 25, 2014
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4,510
Have you tried checking to see if any of the fixture pins underneath the motherboard are touching the motherboard? Any unused pins that are touching could be causing a short.