Question PC wont power on

Aug 15, 2019
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Recently I was asked to help repair a PC which wouldn't power on with the only sign of life being the green LED on the motherboard which I think just indicates that power is available. I removed the PSU from the case, shorted pins PS_ON# and COM together and measured the voltages which were all fine. After refitting the PSU and reconnecting the ATX connector, I again shorted pins PS_ON# and COM, switched on the power, and it sprung into life. For some reason though there is no video output from either the video card on the on-board graphics so I cant be 100% sure if the PC has booted up correctly.

Can anybody help with some advice? I'm suspecting the motherboard needs replacing but not feeling 100% im correct.
 
Aug 15, 2019
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Apologies.....

Motherboard: Asus P8H61-MX R2.0
Processor: Intel i5 (that's all I know)
Memory: 2 x G.Skill Ripjaws 8GB DDR3-1600
Graphics: Asus Strix GTX-960 2GB
PSU: Coolermaster GX Bronze 550W
Storage: 1TB HDD and SSD

Thanks for any help
 

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