Did my PSU or motherboard die?

Blarzor

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Nov 1, 2011
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Hello,
yesterday I normally turned off my PC at 1 PM. After I returned home at 9 PM, I tried to power on my PC but to no avail. I first thought that it was a common problem that I had and it would resolve by itself (every time I would disconnect and connect electricity again to my computer, I would have to wait about 3 minutes for PC to finally power on - In this case I didn't disconnect my PC from electricity, just turned it off through Windows shut down).

When I press the power button, there is nothing powering on, no ventilators, nothing. I tried changing the power cable but the PC still doesn't power on. I was also thinking that the power button was the culprit, but then I pressed the power button which is directly on my motherboard and the PC still doesn't power on. What I noticed now at night (It's night here) is that there is still light glowing out of the motherboard's power button, I have no idea what does that mean. Is PSU or the MOBO the culprit?

I also tried unplugging the power cable and pressing power button a few times to get rid of excess electricity but PC still doesn't work. I tried plugging PC directly into wall socket aswell. Doesn't work.

What could be the actual culprit here?

PSU is LC Power Archangel 850W and motherboard is Gigabyte EX58-UD4P, both parts are 6 years old.

I really need my computer for work and I need to replace the faulty part ASAP, suggestions are wanted.

Thanks for further help and please excuse my English, it's not my main language.
 

Blarzor

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Nov 1, 2011
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What exactly makes this PSU poor, is LC Power bad brand or because of the fact that I had to wait a few minutes before the PC would power on after plugging it in electricity in the past?
 

Blarzor

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Nov 1, 2011
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I recieved the PSU, installed it, also replaced all the old PSU cables with the new ones, everything works as it should! :) PSU was indeed the culprit! I also don't have the problem anymore where computer would need 3 minutes before I could power it on after plugging it into electricity, I guess that was a half a year earlier sign that my old PSU was dying.

Thanks everyone for help, especially you SR-71 Blackbird!