X64 Exception Type 0x12 Machinecheck Exception Link [updated] May 2026

The error message "x64 Exception Type 0x12 - Machine Check Exception"

Interpreting MCE details

Significance of Exception Type 0x12

Challenges and Limitations

1.1 The x64 Exception Vector Table

If dual-booting or using a server, Linux provides superior MCE logging. x64 exception type 0x12 machinecheck exception link

The x64 Exception Type 0x12, or Machine Check Exception (#MC), is a critical, often fatal, hardware-level error indicating a failure in the CPU, memory, or PCIe bus. Troubleshooting typically involves updating BIOS/firmware, reverting overclocks, and reviewing system logs via HPE iLO or Windows Event Viewer. Detailed troubleshooting steps for HPE ProLiant servers are available at HPE Community . Advisory: Apollo 6500 Gen10 - HPE Support The error message "x64 Exception Type 0x12 -

x64 exception type 0x12 machinecheck exception link

Thus, when investigating an , you must extract this field to pinpoint the failing hardware component. Detailed troubleshooting steps for HPE ProLiant servers are

No.

While the CPU raises the exception, the root cause could be memory, PCIe, power supply, or even a bad driver causing illegal bus transactions.