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PSU broken? PC Suddenly shutdown and today, turns on and off fast

Tags:
  • Shutdown
  • Motherboards
  • Components
  • Memory
  • Blue Screen
  • psu
Last response: in Components
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April 15, 2014 6:18:50 PM

So, recently (really recently) my PC was shutting down "randomly" (completely randomly), no blue screen, just shutdown like if it was a power failure.

Now today, same thing but when I try to turn it on, it gain powers and then almost instantly shutdown, before anything appear on screen (like 1 sec or less if possible). Then it tries to turn itself on again and re-shutdown. This indefinitely.

As always, I have no idea if it's memory, Motherboard or PSU.
Motherboard is almost new (6 months) because I had a lot of issues with motherboard previously.
RAM it's 3 years old, but I ran a memtest 6 months ago when I mounted new ram and everything was fine.

So I keep thinking it's a PSU issue, but I may be wrong.

More about : psu broken suddenly shutdown today turns fast

Best solution

a b V Motherboard
a b } Memory
April 15, 2014 6:34:13 PM

Most likely the PSU, the other alternative is some bad capacitor in the motherboard (unlikely being a practically new board) but if you wanna be 100% sure before investing in anything try to borrow a good PSU and see if the problem disappears.
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April 15, 2014 8:02:56 PM

I agree with you. I bought on amazon an RM850 (gold) corsair which should be a very good PSU (5 years warranty), the good point is that if it's not a PSU issue, I have 30 days to send the PSU back to amazon, so that's great.

The bad part is that my probably-faulty PSU it's from corsair, but it's still covered by warranty, I'll send it to repair but I can't stay a month without PC.

Expecially since I changed 2 motherboards this year, I stayed more time without PC than with, lol
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