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[HELP] PC instantly shut off during NVMe install — now won’t turn on (zerobytes.monster)

submitted 1 day ago by bOt@zerobytes.monster to c/pcmasterrace@zerobytes.monster

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The original post: /r/pcmasterrace by /u/king123Ad on 2025-07-06 00:22:30.

Hey guys, need some help.

I was installing Windows on my dad’s PC after replacing the NVMe SSD (swapped an old Lexar NM620 with a new WD Green SN350 1TB). While everything was running, my little brother accidentally bumped the case lightly with his leg, and the PC instantly powered off.

Now, when I press the power button, only the CPU cooler lights up for one second, then everything shuts off. No fans, no display, no power to USB — nothing.

Specs:

Ryzen 5 2600

RX 580 8GB

16GB DDR4

WD Green SN350 1TB NVMe (new)

PSU: 500W Ease (80+ Bronze, unknown Chinese brand)

Colorful B450M M.2 V14 motherboard

The PC worked fine before the NVMe swap

Any advice on what to check next? Really hoping nothing major

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