this post was submitted on 09 Mar 2025
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EHCI (system config) data was corrupt. Possibly from pulling the GPU while the motherboard board still had power (or residual power in caps).
CMOS wipe resets to blank and that data gets rewritten after BIOS runs the "wtf is plugged into me" routines triggered by blank data.
That'd be my guess.
I wasn't aware that data could be corrupted by unplugging components, but what you're saying is making sense. That could definitely have been it.
"Weird Shit" is always a possibility when there's any power at all in the system. The PSU will keep low level power supplied for a surprisingly long time after being unplugged from the mains. ๐
Is it true that this power gets drained when you press the power button without the power cord plugged in?
Not in my experience.
Possibly helped somewhat for older machines where pressing the button made the fans spin for a little, but modern systems are somehow smart enough to not even bother doing anything