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. Note any recent driver or hardware changes. If Windows cannot start, use the startup guide first.

Work through these checks

0 of 3 complete
01Flash BIOS to latest AGESA version

Flash BIOS to latest AGESA version.

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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02Install supported CPU for BIOS update (then update and swap)

Install supported CPU for BIOS update (then update and swap).

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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03Clear CMOS and try booting with one stick of supported RAM

Clear CMOS and try booting with one stick of supported 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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Possible causes

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