On legacy 32-bit systems, an MCE often resulted in a triple fault (reset). On x64 with Windows and Linux, the OS attempts to log the MCA banks (registers like IA32_MCG_STATUS and IA32_MCI_ADDR ) before panic-ing.
They adjusted the to "Virtualization - Max Performance" in the BIOS settings to stabilize the power delivery. x64 Exception type 0x12 in ProLiant DL380 Gen10 Server x64 exception type 0x12 machinecheck exception link
Exception 0x12 is rarely a software bug. It is your CPU's final safety mechanism. Listen to it—or risk silent data corruption. On legacy 32-bit systems, an MCE often resulted