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Started removing components and that somehow got it to boot to UEFI setup in a partially working state. twitter.com/DanielMicay/st It's pretty messed up and it seems like portions of the motherboard are not working anymore including 2 fan headers, USB headers and some other stuff.

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Daniel Micay

@DanielMicay

May 21

One of my two workstations died. Good news is that it was the old Broadwell-E 6950X machine rather than my new Ryzen 9 5950X machine and the worn out NVMe SSD is still going strong so I haven't lost time needing to set everything up again. Still not a good situation right now.

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what happened to that PCH?..

Daniel Micay

@DanielMicay

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@whitequark

I don't understand the failure mode. It has 5x PWM fan headers with 3/5 supporting smart fan control based on CPU temperature. Only the main CPU fan header which is always in PWM mode still works. CPU2 and CHA no longer work. Those two have opt-in PWM so they're a bit different.

7:06 PM · May 21, 2022Twitter Web App

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and

I was going to move everything over to my new workstation where I already moved the SSD. Tried turning it on one last time and noticed USB power lights for security keys, etc. were violently flickering. Booted up to UEFI setup with all settings lost after unplugging a FIDO2 key.

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and

Currently terrified of the both the fans and USB devices that were plugged into it and don't really want to plug them into anything else. Probably not the fault of the fans. Clearly I should complain to Yubico demanding they pay me $2000 to buy new workstation parts...