Question Random Shutdown

OBTA13

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Jul 14, 2019
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PC Specs

ASUS Z170Deluxe mobo
i5 6600k
Cooler Master Hyper D92 cpu cooler
G.SKILL Ripjaws V series 2x8GB RAM
2x480GB SSD PNY
1 TB HDD
1 TB NVMe M.2 SSD
ASRock Taichi RX 5700xt GPU
Cooler Master MWE gold 750 PSU

PC randomly shutdown as if power went out. Won't attempt to power on again unless I shutoff power to the PSU through back I/O switch. Even then it might only give me a CPU fan flutter even though the mobo is getting power from indicator lights. Eventually with a long enough cooldown it will start again as if nothing happened.

I disconnected everything from my case to the mobo and removed my GPU and the problem still persists. I have a spare EVGA PSU 750GQ that I RMAd a year ago but am missing the right CPU/PSU cable. I bought another 750GQ but it won't be here for a week😭🤷‍♂️.

The fact that it starts as normal when it does start makes me believe a component in the PSU is malfunctioning/overheating . Anybody else have some input on this? My CPU temps have been well under 55c and my GPU isn't installed. Happened when I breadboarded it and reset from BIOS, wouldn't restart without PSU I/O shutdown and cooldown time.....

Just want some insight from the forum pros, TIA, much appreciated
 

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