PRIME B550M-A
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BIOS & FIRMWARE

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  • BIOS & FIRMWARE

BIOS
Version 3645
16.08 MB
2026/09/14
SHA-256 :D97CA027EB809365A736A8957058B9B0CB1A184326835358B9E00A240F919CF0

Improve system compatibility

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Version 3644
16.08 MB
2026/08/27
SHA-256 :BE7B874FA11A4965FDC343F60098A3CD7B64A5A9B20B0AE1B4B5D621926A3F6F

"1. Update AGESA version to ComboV2 PI 1.2.0.12.
2. Mitigate fTPM vulnerabilities (CVE-2026-6726, CVE-2026-6727)."

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Version 3636
15.99 MB
2026/01/27
SHA-256 :43D4AB5DC4E03EB059D567BA01B3EFDADFE99F10707E45616B868AF6A5F8BB3D

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Version 3634
16 MB
2025/12/15
SHA-256 :46C85A589F99494DC84A89461E1FE61FA7617251417AB32BE96655EF53BA67F6

"1. Enhanced compatibility and stability.

(Note: Please back up your Bitlocker recovery key and suspend Bitlocker encryption in the operating system before updating your BIOS.)"

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Version 3631
Beta Version
15.99 MB
2025/08/14
SHA-256 :DF5EB919D7F4EBFD5939FB52BD1FD3C5240AA9CF96D451122E9FCF37BECB0BC5

"1. Updated AGESA version to ComboV2 PI 1.2.0.F.
2. Implemented security updates."

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Version 3621
15.96 MB
2025/04/07
SHA-256 :F54609A560018BDCDE7600D1CA29B68775B59D5B69232C315C3C007EB8544F97

1. Updated AGESA version to ComboV2 PI 1.2.0.E.
2. Implemented security updates.

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Version 3611
15.95 MB
2024/11/04

"1. Updated AGESA to version ComboV2PI 1.2.0.Cc.
2. Resolved CPU exception when adjusting items like ""When system is in sleep, hibernate, or soft off states"" in certain languages."

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PRIME B550M-A BIOS 3607
Version 3607
15.95 MB
2024/04/03

"Update AGESA version to ComboV2PI 1.2.0.Ca.
Fix AMD processor vulnerabilities security."

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PRIME B550M-A BIOS 3405
Version 3405
15.94 MB
2024/01/08

"1.This update includes the patch for the LogoFAIL vulnerabilities
2.Support graphics card with M.2 storage"

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PRIME B550M-A BIOS 3404
Version 3404
15.94 MB
2023/10/31

"1. Update AGESA version to ComboV2PI 1.2.0.B
2. Update AMD 5000/3000 Series CPU fTPM version, please back up Bitlocker recovery key before updating this version BIOS."

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PRIME B550M-A BIOS 3205
Version 3205
15.83 MB
2023/09/01

Recommended for vital update to mitigate the potential security vulnerabilities

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PRIME B550M-A BIOS 3202
Version 3202
15.82 MB
2023/08/04

"1. Update AGESA version to ComboV2PI 1.2.0.A
2. Mitigate the AMD potential security vulnerabilities for AMD Athlon™ processors and Ryzen™ processors
3. Improve system stability"

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PRIME B550M-A BIOS 3004
Version 3004
20.18 MB
2023/06/20

Improve system compatibility

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PRIME B550M-A BIOS 3002
Version 3002
20.18 MB
2023/03/14

"1. Update AGESA version to ComboV2PI 1208
2. Mitigate the AMD potential security vulnerabilities for AMD Athlon™ processors and Ryzen™ processors"

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PRIME B550M-A BIOS 2806
Version 2806
20.15 MB
2022/12/12

Improve system compatibility

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PRIME B550M-A BIOS 2803
Version 2803
20.15 MB
2022/04/29

"1. Update AMD AM4 AGESA V2 PI 1.2.0.7.
2. Fix AMD fTPM issue causes random stuttering."

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PRIME B550M-A BIOS 2604
Version 2604
20.1 MB
2022/03/07

1. Update AMD AM4 AGESA V2 PI 1.2.0.6b

2. Improve system performance and stability
3. Improve system performance for AMD Ryzen 7 5800X3D

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PRIME B550M-A BIOS 2423
Version 2423
20.03 MB
2021/08/26

"1. Update AMD AM4 AGESA V2 PI 1.2.0.3 Patch C
2. Improve system performance"

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PRIME B550M-A BIOS 2407
Version 2407
20.02 MB
2021/08/04

Support Windows 11 by default, no settings changes required in the UEFI BIOS.

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PRIME B550M-A BIOS 2403
Version 2403
20.02 MB
2021/06/21

"1. Update AMD AM4 AGESA V2 PI 1.2.0.3 Patch A
2. Improve system stability"

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PRIME B550M-A BIOS 2006
Version 2006
19.89 MB
2021/04/08

"- Update AMD AM4 AGESA V2 PI 1.2.0.1 Patch A
- Fix USB connectivity issue"

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PRIME B550M-A BIOS 2003
Version 2003
19.89 MB
2021/03/26

"- Update AMD AM4 AGESA V2 PI 1.2.0.1
- Support Smart Access Memory for Ryzen 3000 Series Processors
- Fix the L3 cache performance in AIDA64
- Improved system performance
- Improved system compatibility
- Improved memory performance"

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PRIME B550M-A BIOS 1804
Version 1804
19.86 MB
2021/02/08

"1. Update AMD AM4 AGESA V2 PI 1.2.0.0
2. Update AMD RAID UEFI driver
3. Improve system stability"

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PRIME B550M-A BIOS 1602
Version 1602
Beta Version
19.65 MB
2021/01/08

Update AMD AM4 AGESA V2 PI 1.1.9.0.

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PRIME B550M-A BIOS 1401
Version 1401
19.56 MB
2020/12/08

"1. New CPU support
2. Add a ReSize BAR shortcut for AMD SAM support"

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PRIME B550M-A BIOS 1216
Version 1216
Beta Version
19.43 MB
2020/11/25

1. Support AMD AM4 AGESA V2 PI 1.1.0.0 Patch C
2. Improve system stability
3. Improve DRAM compatibility
4. Improve system performance

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PRIME B550M-A BIOS 1212
Version 1212
Beta Version
19.43 MB
2020/11/05

"1. Update AMD AM4 AGESA V2 PI 1.1.0.0 Patch C
2. Improve system stability
3. Improve DRAM compatibility "

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PRIME B550M-A BIOS 1203
Version 1203
19.43 MB
2020/10/27

1. Updated AMD AM4 AGESA V2 PI 1.1.0.0 Patch B
2. Improve system performance and stability
3. Improved DRAM compatibility

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PRIME B550M-A BIOS 1004
Version 1004
18.38 MB
2020/08/17

"Improve system performance and stability
Improve Fan control function
Improve DRAM stability
Update AM4 AGESA combo V2 PI 1.0.8.0
Improve system stability
Improve DRAM performance"

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PRIME B550M-A BIOS 0805
Version 0805
18.28 MB
2020/07/03

"- Improved system performance and compatibility
- Improved DRAM compatibility
- Update AM4 combo V2 PI 1.0.0.2 "

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PRIME B550M-A BIOS 0608
Version 0608
16.88 MB
2020/06/16

Add APE function in BIOS settings. Improve system performance and stability.

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PRIME B550M-A BIOS 0603
Version 0603
18.23 MB
2020/06/11

Update AMD AM4 AGESA PI 1.0.0.1

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PRIME B550M-A BIOS 0311
Version 0311
16.86 MB
2020/05/20

Improve system performance

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PRIME B550M-A BIOS 0310
Version 0310
16.86 MB
2020/05/20

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PRIME B550M-A BIOS 0308
Version 0308
16.86 MB
2020/05/20

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  • All specifications are subject to change without notice. Please check with your supplier for exact offers. Products may not be available in all markets.
  • Specifications and features vary by model, and all images are illustrative. Please refer to specification pages for full details.
  • PCB color and bundled software versions are subject to change without notice.
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  • The terms HDMI and HDMI High-Definition Multimedia Interface, HDMI trade dress and the HDMI Logos are trademarks or registered trademarks of HDMI Licensing Administrator, Inc. in the United States and other countries.
    • Specifications and features vary by model, and all images are illustrative. Please refer specification pages for full details.
    • *Precise specifications and features vary by model. Please refer to the specification page
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         **Product specifications and battery design may vary depending on the model. For any questions, please contact ASUS official customer service.