Question Pc won’t boot up when GPU is plugged in.

Jan 5, 2023
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Got a new prebuilt but it would turn off when gaming or stressed during benchmark.
Specs are intel i7 12700kf
MSI z690a
RTX 3070
8GB x2 tforce DDR4

I thought it was the power supply (apevia 800w prestige power). Was on a forum and people were saying that those psu sucked. Replaced with Corsair RM1000x. Before the replacement of the psu I had updated all drivers and bios but problem persisted. Not sure what is going on now. My kid and I are stumped. When the GPU is not plugged into the power supply all lights and fans come on, but when the GPU is plugged in there is nothing. No lights and no fans.