Memory · critical

How to fixMCE-MEM-READ-ERR

MCE memory read error (Memory Read Error)

What this error means

This critical-severity issue affects the system memory (RAM). The processor detected an unrecoverable error while reading data from memory and wrote it to the MCE log. Common triggers are physically damaged RAM module and unstable XMP/EXPO profile. See the troubleshooting steps below for the fix.

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 3 complete
01Run MemTest86 overnight (min 2 passes)

Run MemTest86 overnight (min 2 passes).

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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02Reset XMP/EXPO to manual safe values ​​

Reset XMP/EXPO to manual safe values ​​.

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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03Test the RAM modules individually

Test the RAM modules individually.

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

  • Physically damaged RAM module
  • Unstable XMP/EXPO profile
  • Memory overheating (for notebooks with LPDDR5 under intense load)

Useful Windows tools

These commands open Windows tools. Review any action inside the tool before applying changes.

mdsched.exe