STOP 0x00000124
WHEA_UNCORRECTABLE_ERROR
Your hardware itself reported a fatal error to Windows (WHEA = Windows Hardware Error Architecture). This is different from most blue screens: the message comes from the CPU or platform, not from a driver. Think overclock, power, heat, BIOS — and sometimes a genuinely failing part.
Worth knowing: This is a hardware-reported error. Driver updates rarely fix a genuine 0x124 — focus on BIOS, power, heat and the CPU itself.
Likely causes, most common first
- An unstable CPU overclock or undervolt (including motherboard "auto-boost" defaults)
- Insufficient or failing power delivery (PSU, VRM)
- Overheating
- A degrading CPU — Intel 13th/14th-gen K-series instability is a documented example
- Outdated BIOS / CPU microcode
How to fix it
1. Load BIOS defaults and update the BIOS moderate
- In the BIOS, load optimized defaults to clear all overclocks, undervolts and XMP/EXPO.
- Install the newest BIOS from your motherboard/PC maker — vendors ship microcode fixes for exactly these errors.
- Use the PC normally and watch whether 0x124 returns.
2. Check heat and power moderate
- Monitor CPU temperature under load; clean dust, verify cooler mounting and fans.
- If the PSU is old, borrowed hardware or a cheap unit, test with a known-good PSU if you can.
- On laptops: crashes only on battery or only on charger point at the power path — try the other mode.
3. If it keeps happening at stock settings moderate
- Recurring 0x124 with stock clocks, current BIOS and good temperatures usually means a failing part — most often CPU or board.
- Intel 13900K/14900K-class CPU? Update BIOS first (mitigation microcode), then contact Intel support — degradation from earlier microcode is covered by an extended warranty.
- Otherwise: test with spare parts where possible, or have a shop isolate the failing component.
The four parameters on the blue screen
Windows shows four hex numbers with this stop code. Here's what each means — our analyzer decodes them automatically from your dump file.
| Parameter 1 | Error source type (0 = Machine Check Exception from the CPU) |
| Parameter 2 | Address of the error record with the hardware's own details |
| Parameter 3 | High 32 bits of the MCi_STATUS value |
| Parameter 4 | Low 32 bits of the MCi_STATUS value |
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