BIOS & startup · critical

How to fixAGESA-BOOT-FAILURE

AMD AGESA initialization failure

What this error means

This critical-severity issue affects the hardware BIOS/UEFI. AMD Generic Encapsulated Software Architecture (AGESA) is the foundational firmware layer that initializes AMD processor platforms. An AGESA initialization failure means the CPU, memory controller, or PCIe fabric initialization failed before the BIOS environment was fully established. This causes no-POST situations with debug LED codes. It's also often linked to incompatible RAM speed or timing. The steps below are ordered to resolve this efficiently.

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
01Flash BIOS to latest AGESA version
  1. Flash BIOS to latest AGESA version
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
02Install supported CPU for BIOS update (then update and swap)
  1. Install supported CPU for BIOS update (then update and swap)
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
03Clear CMOS and try booting with one stick of supported RAM
  1. Clear CMOS and try booting with one stick of supported RAM
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

  • CPU not supported by current AGESA version
  • Incompatible RAM speed or timing
  • Corrupted BIOS flash