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165 posts

Master Geek

# 103997 12-Jun-2012 15:52
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Just got a new PSU in today. Took out my old one and put in the new.

Problem is as soon as I connect it to power and flick it on it starts trying to start up, or so that is what I think it is.
The keyword being "trying" cause it doesn't power up at all. It makes a sound like it is, the fan twitches and the lights on the Mobo flick on, all for a split second only. It just repeats this over and over.

I'm not sure it is the PSU cause its a replacement for my last one which was all of a sudden started flicking the breaker for whatever circuit it was in the house. This one hasn't flicked the breaker.

Any ideas?

PSU= Enermax Maxrevo 1350W
Mobo= ASROCK P67 Pro Fatal1ty


Okay with everything disconnected and with just the PSU by itself still does the little blips of power and repeats

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Chief Trash Bandit
9830 posts

Uber Geek

Mod Emeritus
Lifetime subscriber

  # 639761 12-Jun-2012 16:09
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Got 24 pin power connector plugged in properly ? (Obvious but people sometimes do miss it :) )

Other thing (and hate to say it), is possibly cooked the mobo somehow when doing the swap over. Ive got a couple of motherboards here (old ones) that do similar thing, power comes on for a second then dies again, no matter what PSU I give them.

XPD / Gavin / DemiseNZ


Server : i5-3470s @ 3.50GHz  16GB RAM  Win 10 Pro    Workstation : i5-3570K @ 3.40GHz  20GB RAM  RX580 4GB Win 10 Pro    Console : Xbox One - Games, emulation, geekery, and my attempts at photography.     Now on BigPipe 100/100 and 2Talk


Emulation - The art of getting your $4000 PC to run an 80's system - and still fails.

165 posts

Master Geek

  # 639765 12-Jun-2012 16:25
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I considered it might be the mobo. But I disconnected the mobo and the PSU still does the same thing.

I remember when I first built this computer I put a cable in upside down and it wasn't starting, so I remembered to double check this time lol

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