WHEA_UNCORRECTABLE_ERROR (124) A fatal hardware error has occurred. Parameter 1: Bank number (0x3) Parameter 2: MCi_STATUS = 0xfe000000000c0f35 Parameter 3: MCi_ADDR = 0x1a3f0000 **Link: UPI Link 1 - Poisoned packet**
Exception 0x12 is rarely a software bug. It is your CPU's final safety mechanism. Listen to it—or risk silent data corruption. x64 exception type 0x12 machinecheck exception link
Reseat or replace memory modules if the error points to a specific memory slot. Hewlett Packard Enterprise Quick Reference Table Likely Cause Recommended Action Voltage drop or logic error Update BIOS; Set "Max Performance" profile Uncorrectable ECC error Memory Diagnostics ; Reseat DIMMs Firmware incompatibility HBA/NIC drivers and firmware Overheating under load Increase fan speed/Cooling profile Could you tell me a bit more about the environment where this is happening? For example: What is the hardware model (e.g., HPE ProLiant, Dell PowerEdge)? Did this occur during or while the system was under load Do you have access to the System Event Logs code from the error logs. x64 Exception type 0x12 in ProLiant DL380 Gen10 Server Listen to it—or risk silent data corruption
By utilizing the internal Machine Check Architecture logs rather than blindly replacing components, you can efficiently pinpoint the exact hardware trace, channel, or core responsible for the x64 Exception Type 0x12, restoring your infrastructure to complete stability. For example: What is the hardware model (e