: Irrecoverable parity errors occurring within the Level 1, 2, or 3 internal CPU caches.
An uncorrectable Machine Check Exception (MCE) has occurred indicating that the processor detected an internal machine error or a bus error, or that an external agent detected a bus error. Common Root Causes x64 exception type 0x12 machinecheck exception link
A CPU-initiated action that occurs when it detects an uncorrectable hardware error. : Irrecoverable parity errors occurring within the Level
| Tool / Environment | "Link" Meaning | |-------------------|----------------| | | Interconnect link ID (e.g., "UPI Link 0" or "Coherent Link 2") | | WinDbg (Windows crash dump) | !errrec shows "Link" pointing to a WHEA_ERROR_RECORD linkage | | EDAC (Error Detection and Correction) | "Link" refers to memory controller channel | | Intel PCM / AMD uProf | Link power management or retry count exceeded | | Tool / Environment | "Link" Meaning |
: Micro-instabilities induced by severe processor throttling or a failing power delivery network. Technical Indicators in Enterprise Logs