Processor · critical

How to fixWHEA_UNCORRECTABLE_ERROR

WHEA uncorrectable error

What this error means

WHEA_UNCORRECTABLE_ERROR is a critical-severity processor (CPU) problem. Critical CPU or chipset hardware error (BSOD 0x124). Caused by voltage instability, overheating or overclocking. This can also stem from defective RAM. Follow the steps below to fix it.

Before you begin

Save open work and back up important files. Note any recent driver or hardware changes. If Windows cannot start, use the startup guide first.

Work through these checks

0 of 4 complete
01Reset BIOS to default

Reset BIOS to default.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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02Check temperatures in HWMonitor

Check temperatures in HWMonitor.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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03Run MemTest86

Run MemTest86.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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04Update the BIOS

Update the BIOS.

Use the instructions for your exact device and operating system. Check the manufacturer’s documentation before changing firmware, hardware, or system settings.

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Possible causes

  • CPU overheating
  • Unstable Vcore voltage
  • Overclocking beyond limits
  • Defective RAM