These are the most common Windows Hardware Error Architecture (WHEA) error codes — what they mean and how to fix them.
WHEA Error Codes & Fixes
| Error Code | What It Means | Fix |
|---|---|---|
| 0x124 – WHEA_UNCORRECTABLE_ERROR | Critical hardware failure (CPU, GPU, RAM, PSU, VRM, or motherboard). | Check temps, remove overclock, test hardware individually. |
| 0x9C – MACHINE_CHECK_EXCEPTION | CPU detected a serious hardware fault (cache, bus, or voltage). | Improve cooling, check PSU, inspect motherboard. |
| WHEA Logger Event 1 | General hardware error reported by WHEA. | Check system stability, test CPU/GPU/RAM. |
| WHEA Logger Event 17 | Corrected hardware error (CPU, memory controller, or PCIe). | Monitor frequency, reduce overclock, check cooling. |
| WHEA Logger Event 18 | Uncorrected CPU error — often cache or core failure. | Lower CPU overclock, check temps, update BIOS. |
| WHEA PCIe Error | PCIe device reported a hardware fault (GPU, NVMe, NIC). | Reseat device, try another slot, check PSU power cables. |
| WHEA Memory Error | Memory controller detected corrupted RAM data. | Test RAM sticks individually, disable XMP. |
| WHEA Bus/Interconnect Error | CPU cannot communicate with chipset or PCIe devices. | Reseat CPU, inspect motherboard socket, check VRMs. |
| WHEA Voltage Error | Unstable power delivery detected. | Check PSU, remove overclock, inspect motherboard power phases. |
| WHEA Thermal Error | Overheating detected by CPU/GPU sensors. | Improve cooling, clean fans, reapply thermal paste. |
| WHEA Internal Error | CPU internal execution or microcode fault. | Update BIOS, reset CPU settings, check temps. |