New PC build random shutdown due to power surges

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4 Dec 2007
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I built a new system about 6 weeks back and all has been well until this past week.

Im now getting random reboots and upon restart I get the message -
"power supply surges detected during previous power on" the system has shut down for its own safety etc.

Now it would imply that the PSU is faulty, though I suppose it could also be the Motherboard. Ive also read some reports of the asus sensor giving false positives and just to turn it off. Obviously im somewhat disinclined to do that as it may be genuine.

Anyone here had experience of this? Google says im not the only one, just little in the way of resolved cases one way or the other.

Asus z87z Plus
i5 4670k Haswell
Corsair RM Series 750 '80+ Gold'
MSI Radeon R9 270x 4gb
8gb Corsair DDR3 1600
Corsair Hydro H60
2 internal 7200rpm hds

Any input on the subject would be welcome.
 
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I had a similar thing with a faulty USB lead. If the PC was on when I plugged it in it just shut off the USB controller for me but wouldn't start if it was plugged in on power on and gave that same message about power surges. So IMO that is worth checking too.
 
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Thanks ill look into the USB thing, pretty sure the only usb device connected is a mouse, certainly at the time of any reboots.
I will reseat all the internal power connections just to be sure, im guessing it probably is the PSU.
 
It's not a faulty PSU

I recently added a H80i AIO CPU cooler plugged in 3 drives + DVD + 3x 120mm fans
and i got that message.

I disconnected everything but the main SSD, cooler, gpu and it worked fine.

Then i connected everything else and then it was fine

I run a:

i7 870 oc @ 3.6 Ghz (from 2.93 Ghz)
8 GB Ram
GTX 460
H80i CPU cooler
3x 120mm fans
1x SSD
2x HDD
1x DVD RW

all on a 5 Yr old CX 600W
 
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