powering down after 1-2 seconds

BayouBob

Distinguished
Aug 10, 2013
21
0
18,510
this is a new build and also my first,had system up and running long enough to install os,had ran about 4-5 hours although there was 3-4 sudden shutdowns during this time.i then attempted to run prime95 and had instant shutdown,had no power to fans or anything when trying to start.rma'd my mobo thinking it was bad.got new mobo in with system still not running but maybe a second or two.
i5-4670k
gigabyte z87x ud3h
gtx 760 2gb
8 gb corsair vengence
1 120 gb ssd
1 tb hhd
noctua u14s
seasonic g550 psu I'm wondering if maybe prime95 messed my psu up,shouldn't this psu be able to run this build.any help would be appreciated.Also want to say u guys do a great job helping us noobs out.
 

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