PRIME B450-PLUS
Product Support For
PRIME B450-PLUSFind Another Model
By registering your device, you can easily manage your product warranty, get technical support and keep track of your repair status.
Upgrade Warranty: Here.
* Please note that the availability of the Premium Care product lines might differ by country.
Register Product
  • CPU / Memory Support
  • FAQ
  • Manual & Document
  • Warranty
  • More Service

BIOS & FIRMWARE

  • Driver & Tools
  • BIOS & FIRMWARE

BIOS
Version 4655
10.82 MB
2026/08/27
SHA-256 :BC216192806850444226BCA35AA04392CEA35117F92EBC38E73DE48EE25350B8

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

DOWNLOAD
SHOW MORE DESCRIPTION
Version 4645
10.82 MB
2026/01/27
SHA-256 :BEEEC8117309651D16A2B1077633E427A7B36A392F3EC26FDD34DFAF5F8F83A2

Improve system compatibility

DOWNLOAD
SHOW MORE DESCRIPTION
Version 4644
Beta Version
10.82 MB
2025/09/22
SHA-256 :3EB01C107434B929D7E46695EA479D425BB4798863FC428BCF1D1C820916BA80

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.

DOWNLOAD
SHOW MORE DESCRIPTION
Version 4641
Beta Version
10.82 MB
2025/08/14
SHA-256 :DB7ED8342989F62E864B982ECE462BB3363E550EFB0BBB74A1B979F172AD4BC9

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

DOWNLOAD
SHOW MORE DESCRIPTION
Version 4631
10.81 MB
2025/04/01
SHA-256 :51679301C0843CAE99CE5B22F234A2AA3643CCB2D7715F7284D02F414F068BEC

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

DOWNLOAD
SHOW MORE DESCRIPTION
Version 4622
10.8 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."

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 4604
Version 4604
10.8 MB
2024/04/08

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

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 4402
Version 4402
10.79 MB
2024/01/08

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

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 4401
Version 4401
10.79 MB
2023/10/30

"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"

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 4204
Version 4204
10.78 MB
2023/09/01

Recommended for vital update to mitigate the potential security vulnerabilities

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 4202
Version 4202
10.78 MB
2023/08/02

"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"

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 4003
Version 4003
10.76 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"

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 3810
Version 3810
10.75 MB
2022/12/15

Improve system compatibility

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 3802
Version 3802
10.76 MB
2022/05/12

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

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 3604
Version 3604
10.65 MB
2022/03/16

"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"

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 3211
Version 3211
10.6 MB
2021/08/26

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

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 3205
Version 3205
10.6 MB
2021/08/04

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

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 3202
Version 3202
10.6 MB
2021/06/24

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

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 3002
Version 3002
10.51 MB
2021/03/19

"- Update AMD AM4 AGESA V2 PI 1.2.0.1
- Support Smart Access Memory for Ryzen 3000 Series Processors
- Improved system performance
- Improved system compatibility
- Improved memory performance"

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 2807
Version 2807
10.5 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"

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 2803
Version 2803
Beta Version
10.48 MB
2021/01/18

"1. Improve system Performance and stability
2. Improve ReSizable BAR compatibility for NVIDIA RTX30 series graphics cards "

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 2602
Version 2602
Beta Version
10.4 MB
2021/01/08

Update AMD AM4 AGESA V2 PI 1.1.9.0.

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 2409
Version 2409
10.37 MB
2020/12/07

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

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 2202
Version 2202
9.51 MB
2020/07/17

"Improve system performance
Improve DRAM stability
Improve system stability
Improve system compatibility
Fixed AI suite 3 issue
Update AM4 AGESA to 1006
Fixed HDMI and DP sound issue"

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 2008
Version 2008
9.47 MB
2019/12/11

Improve system compatibility

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 2006
Version 2006
9.49 MB
2019/11/25

Update AM4 combo PI 1.0.0.4 patch B

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 1823
Version 1823
9.43 MB
2019/10/31

Improve system performance

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 1821
Version 1821
9.43 MB
2019/10/29

Improve system performance.

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 1820
Version 1820
9.46 MB
2019/09/24

Update AGESA 1.0.0.3ABBA to improve system performance.
Removes Gen 4 support when using Ryzen 3000 CPUs.

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 1816
Version 1816
9.45 MB
2019/09/09

1.Improve system performance.
2.Update AM4 Combo PI 1.0.0.3 Patch ABB
a.Fixes a compatibility issue with Destiny 2
b.Fixes an issue with certain Linux distros
c.Removes Gen 4 support when using Ryzen 3000 CPUs
3.Improves EZFlash performance to reduce boot time.

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 1804
Version 1804
9.37 MB
2019/08/01

Update AGESA 1.0.0.3 Patch AB to improve compatibility;
Recommend updating the BIOS via EZ Flash.

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 1608
Version 1608
9.35 MB
2019/07/23

Improve system performance

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 1607
Version 1607
9.35 MB
2019/06/21

Update new AGESA to improve compatibility;
Recommend updating the BIOS via EZ Flash.

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 1201
Version 1201
9.39 MB
2019/05/17

Update AM4 ComboPI 0.0.7.2A for next-gen processors and to improve CPU compatibility

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 0809
Version 0809
9.27 MB
2019/03/08

Update AGESA 0070 for the upcoming processors and improve some CPU compatibility.
ASUS strongly recommends that you update AMD chipset driver 18.50.16 or later before updating BIOS.

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 0604
Version 0604
8.26 MB
2018/12/21

Improve compatibility and performance for Athlon™ with Radeon™ Vega Graphics Processors

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 0601
Version 0601
8.26 MB
2018/11/26

Update AGESA 1006
Update AMD chipset driver 18.10.20.02 or latest version before update this BIOS.

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 0409
Version 0409
8.06 MB
2018/08/31

"
1. Improve system compatibility"

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 0403
Version 0403
8.04 MB
2018/07/20

1. Improve system performance;

DOWNLOAD
SHOW MORE DESCRIPTION
PRIME B450-PLUS BIOS 0318
Version 0318
8.04 MB
2018/06/22

First release BIOS

DOWNLOAD
SHOW MORE DESCRIPTION
Show all
Product has High-Definition Multimedia Interface.
  • Products certified by the Federal Communications Commission and Industry Canada will be distributed in the United States and Canada. Please visit the ASUS USA and ASUS Canada websites for information about locally available products.
  • 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.
  • Brand and product names mentioned are trademarks of their respective companies.
  • 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
    • The product (electrical, electronic equipment, Mercury-containing button cell battery) should not be placed in municipal waste. Check local regulations for disposal of electronic products.
    • The use of trademark symbol (TM, ®) appears on this website means that the word text, trademarks, logos or slogans, is being used as trademark under common laws protection and/or registered as Trademark in U.S. and/or other country/region.
    • Learn more about battery usage, removal, replacement, and related safety guidelines

         **Product specifications and battery design may vary depending on the model. For any questions, please contact ASUS official customer service.