We have a few M93p's here at the office. Yesterday, Lenovo Vantage offered a BIOS update, which failed. I figured out 2 beeps meant BIOS, I followed this thread, found the correct BIOS on Lenovo.. using the UEFI BIOS update, copied the files to a freshly-forma Re:ThinkCentre: Failed uEFI / BIOS update. Two 2 beeps.