Memory · high

How to fix DRAM Training Timeout / POST Loop

Error code: DRAM_POST_TIMEOUT

What this error means

The motherboard BIOS takes an excessive amount of time training the DDR5 memory channels on boot, eventually timing out and reporting a POST failure or resetting the memory frequency back to 4800MHz.

Updated

Before you begin

Save open work and back up important files. Use instructions for your exact device and software version. If Windows cannot start, see the startup guide.

Work through these checks

0 of 3 complete
01Enable 'Memory Context Restore' and 'Power Down Mode' in BIOS DRAM settings
  1. Enable 'Memory Context Restore' and 'Power Down Mode' in BIOS DRAM settings
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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02Update motherboard BIOS firmware
  1. Update motherboard BIOS firmware
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

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03Verify RAM is in slots A2/B2
  1. Verify RAM is in slots A2/B2
What to expect

Check whether the original symptom still occurs.

If it does not help

Continue only if this check applies to your device. Consult its manufacturer if you are unsure.

Browse related errors

Possible causes

  • DDR5 memory controller limitations
  • Incorrect memory slot population
  • Outdated motherboard BIOS microcode