X64 Exception Type 0x12 Machinecheck Exception Link Here

Check the or System Event Log (SEL) for specific bank and status codes.

Hardware communication across the PCIe bus can experience physical line degradation or timing issues. This frequently manifests as an Uncorrectable PCI Express error detected message following the 0x12 prompt, indicating a faulty riser card, network adapter, or GPU. 2. Failing or Degraded Memory (RAM) Modules x64 exception type 0x12 machinecheck exception link