random shut down and then restart when surfing the web

garretts43

Honorable
Dec 31, 2013
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0
10,680
my pc randomly shut down and restarted itself this morning. it was on for 30mins while browsing the web. nothing is overclocked except for the ram. Also, I received no BSOD, just a shut down and reboot. this didnt happen at all yesterday and I was playing games and left it on all day (not that I can remember at least).

Could tis be a psu issue?

X99 asus deluxe, 5820k, 2666mhz 16gb corsair, ax1200i, windows 8.1, samsung 840 pro, WD 2tb, gtx 970