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    BIOS & FIRMWARE

    • Driver & Tools
    • BIOS & FIRMWARE
    BIOS
    Version 4622
    15.71 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 (PB450MK2.CAP) using BIOSRenamer. "

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    PRIME B450M-K II BIOS 4604
    Version 4604
    15.71 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 (PB450MK2.CAP) using BIOSRenamer.

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    PRIME B450M-K II BIOS 4403
    Version 4403
    15.7 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 (PB450MK2.CAP) using BIOSRenamer."

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    PRIME B450M-K II BIOS 4401
    Version 4401
    15.71 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

    Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MK2.CAP) using BIOSRenamer."

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    PRIME B450M-K II BIOS 4204
    Version 4204
    15.69 MB
    2023/09/04

    Recommended for vital update to mitigate the potential security vulnerabilities

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    PRIME B450M-K II BIOS 4202
    Version 4202
    15.69 MB
    2023/07/11

    "1. Improve system performance and compatibility.
    2. Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MK2.CAP) using BIOSRenamer. "

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    PRIME B450M-K II BIOS 4004
    Version 4004
    15.68 MB
    2023/06/20

    "Improve system compatibility

    Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MK2.CAP) using BIOSRenamer."

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    PRIME B450M-K II BIOS 4002
    Version 4002
    15.68 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 (PB450MK2.CAP) using BIOSRenamer."

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    PRIME B450M-K II BIOS 3810
    Version 3810
    15.66 MB
    2022/12/15

    "Improve system compatibility

    Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MK2.CAP) using BIOSRenamer."

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    PRIME B450M-K II BIOS 3802
    Version 3802
    15.68 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 (PB450MK2.CAP) using BIOSRenamer."

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    PRIME B450M-K II BIOS 3604
    Version 3604
    15.56 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 (PB450MK2.CAP) using BIOSRenamer."

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    PRIME B450M-K II BIOS 3211
    Version 3211
    15.48 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 (PB450MK2.CAP) using BIOSRenamer."

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    PRIME B450M-K II BIOS 3205
    Version 3205
    15.48 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 (PB450MK2.CAP) using BIOSRenamer."

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    PRIME B450M-K II BIOS 3202
    Version 3202
    15.46 MB
    2021/06/25

    "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 (PB450MK2.CAP) using BIOSRenamer."

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    PRIME B450M-K II BIOS 3002
    Version 3002
    15.36 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 (PB450MK2.CAP) using BIOSRenamer."

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    PRIME B450M-K II BIOS 2807
    Version 2807
    15.31 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 (PB450MK2.CAP)using BIOS Renamer."

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    PRIME B450M-K II BIOS 2803
    Version 2803
    Beta Version
    15.25 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 (PB450MK2.CAP) using BIOSRenamer"

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    PRIME B450M-K II BIOS 2602
    Version 2602
    Beta Version
    15.11 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 (PB450MK2.CAP) using BIOSRenamer

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    PRIME B450M-K II BIOS 2409
    Version 2409
    15.06 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 (PB450MK2.CAP) using BIOSRenamer."

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    PRIME B450M-K II BIOS 0401
    Version 0401
    14.24 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-K II BIOS 0309
    Version 0309
    14.24 MB
    2020/09/11

    "PRIME B450M-K II R1.02 BIOS 0309 and LAN tool&AI1315 FW first release

    Before running the USB BIOS Flashback tool, please rename the BIOS file (PB450MK2.CAP) using BIOSRenamer."

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    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.
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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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