PRIME B450M-A II
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BIOS & FIRMWARE

  • Driver & Tools
  • BIOS & FIRMWARE

BIOS
Version 4655
15.81 MB
2026/08/27
SHA-256 ：37EE6899992466C4C68DDB7FC1697D1C41A566BD0BA96B5B17803273BC44A316

"1. Update AGESA version to ComboV2 PI 1.2.0.12.
2. Mitigate fTPM vulnerabilities (CVE-2026-6726, CVE-2026-6727).
Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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Version 4645
15.81 MB
2026/01/27
SHA-256 ：46044B0859290B2B66ECAEC35DDED6F4CD703E7EAA40D3C0E8C845512F9E994B

"Improve system compatibility
Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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Version 4644
Beta Version
15.82 MB
2025/09/22
SHA-256 ：096255992E0B077F27225F423B04E0684B8D8CADF01A1969984DEC86CDC389EF

"This BIOS update for Ryzen™ 5000 G-Series /4000 G-Series /3000 G-Series /2000 G-Series systems includes a critical fTPM firmware upgrade, enhancing security and optimizing game compatibility. Before proceeding, back up your BitLocker recovery key and suspend BitLocker encryption in your operating system to prevent potential boot issues.
Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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Version 4641
Beta Version
15.82 MB
2025/08/14
SHA-256 ：C5AE7E87C8FF23D899BB32AD60BC7F56B4D9C71231ABB0D974E7134C90100143

"1. Updated AGESA version to ComboV2 PI 1.2.0.F.
2. Implemented security updates.
Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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Version 4632
15.78 MB
2025/07/09
SHA-256 ：2051DDCF1DEAB88DEA544E739ED13BEF9F83C2B6A1B92C49309508EE526262FC

"Improve system compatibility

Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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Version 4631
15.78 MB
2025/04/01
SHA-256 ：977025762EB301E088018C759EC85852893DA9B328677937CF5024171AE7E9EE

"1. Updated AGESA version to ComboV2 PI 1.2.0.E.
2. Implemented security updates.
Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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Version 4622
15.77 MB
2024/11/14

"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.
Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 4604
Version 4604
15.77 MB
2024/04/08

Update AGESA version to ComboV2PI 1.2.0.Ca.
Fix AMD processor vulnerabilities security.
Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer.

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PRIME B450M-A II BIOS 4410
Version 4410
15.77 MB
2024/02/27

"Improve system compatibility.

Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 4402
Version 4402
15.76 MB
2024/01/08

"1.This update includes the patch for the LogoFAIL vulnerabilities
2.Support graphics card with M.2 storage
Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 4401
Version 4401
15.76 MB
2023/10/25

"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

Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 4204
Version 4204
15.75 MB
2023/09/04

"Recommended for vital update to mitigate the potential security vulnerabilities
Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 4202
Version 4202
15.75 MB
2023/07/31

"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

Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 4002
Version 4002
15.73 MB
2023/03/21

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

Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 3810
Version 3810
15.72 MB
2022/12/13

"Improve system compatibility

Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 3802
Version 3802
15.74 MB
2022/05/12

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

Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 3604
Version 3604
15.62 MB
2022/03/15

"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


Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 3211
Version 3211
15.54 MB
2021/08/26

1.Update AMD AM4 AGESA V2 PI 1.2.0.3 Patch C

2.Improve system performance


Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer.

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PRIME B450M-A II BIOS 3205
Version 3205
15.54 MB
2021/08/04

"Support Windows 11 by default, no settings changes required in the UEFI BIOS.
Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 3202
Version 3202
15.52 MB
2021/06/24

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

Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 3002
Version 3002
15.41 MB
2021/03/19

"- 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

Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 2807
Version 2807
15.36 MB
2021/02/09

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

Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 2803
Version 2803
Beta Version
15.31 MB
2021/01/18

"1． Improve system Performance and stability
2． Improve ReSizable BAR compatibility for NVIDIA RTX30 series graphics cards
Before running the BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer"

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PRIME B450M-A II BIOS 2602
Version 2602
Beta Version
15.17 MB
2021/01/08

Update AMD AM4 AGESA V2 PI 1.1.9.0.
Before running the BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer

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PRIME B450M-A II BIOS 2409
Version 2409
15.12 MB
2020/12/04

"1.New CPU support
2.Offer a Re-size BAR Support option to enhance GPU performance.

Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 0401
Version 0401
14.33 MB
2020/11/12

"Improve system compatibility.
Support ALC897 audio codec

Before running the USB BIOS Flashback tool, please rename the BIOS file (.CAP) using BIOSRenamer."

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PRIME B450M-A II BIOS 0310
Version 0310
14.33 MB
2020/09/03

"PRIME B450M-A II R1.00 and R1.01A BIOS 0310 and LAN tool&AI1315 FW first release.

Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MA2.CAP) using BIOSRenamer."

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Product has High-Definition Multimedia Interface.
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