Need some help and advice about this stress test?

Oliver_16

Reputable
Feb 3, 2016
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So I overclocked my R5 1400 from 3.65ghz to 3.75ghz.
Everything looks fine and when I went to do some stress test using Prime95 on all threads and using HWMonitor to see the temperature.
So 10 minutes after starting Prime95
My computer monitor suddenly goes to sleep and says no signal and the keyboard also goes out.

I don't know what to do except go back to 3.65ghz, but when it was in 3.75ghz it booted up fine and I also did some web browsing for like 15 minutes trying to solve this problem I have now coming here.
Also I'm using the wraith stealth cooler as well.

These are my specs,
R5 1400 @3.65ghz
Crucial sport DDR4 2400 ram dual channel 2x4gb sticks
Two Western digital 72k 1 terabyte hdd
EVGA 500W WHITE 80+ PSU
PNY GTX 1060 XLR8 6Gb

Any suggestions?