Memory · critical

How to fixRAM-NOT-DETECTED

RAM module not detected

What this error means

RAM-NOT-DETECTED shows up as a critical-severity system memory (RAM) fault. Motherboard doesn't recognize RAM - reports low memory or won't boot. Typical causes include module incorrectly inserted, oxidized contacts and defective DIMM slot. 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 3 complete
01Transplant the RAM

Transplant the RAM.

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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02Clean the contacts with the eraser

Clean the contacts with the eraser.

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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03Try a different DIMM slot

Try a different DIMM slot.

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

  • Module incorrectly inserted
  • Oxidized contacts
  • Defective DIMM slot