The ASUS PRIME X299-DELUXE II is an ASUS PRIME series mainstream motherboard supporting Intel Core X-series HEDT processors on the LGA2066 socket with DDR4 memory. It targets home office users and mainstream builders and provides a comprehensive feature set for its platform tier. BIOS updates deliver stability improvements, security patches, new processor compatibility, and platform optimizations.
Product released: June 1, 2017
Latest firmware version
Version 4301, released March 30, 2026
Last checked for updates: Aug 2, 2026 17:12 UTC
What's new in version 4301
1.Improve system stability and performance
2.Update Intel microcode
3.Enhance overall system security.
“Before BIOS update, please download Intel ME update tool from ASUS support site, and update ME firmware to Version 11.12.98.2655 to ensure optimized system settings.”
Before running the USB BIOS Flashback tool, please rename the BIOS file (X299D2.CAP) using BIOSRenamer.
LatestUpdate has tracked 18 versions of ASUS PRIME X299-DELUXE II firmware, released between October 12, 2018 and March 30, 2026.
Version 4301 - March 30, 2026: 1.Improve system stability and performance 2.Update Intel microcode 3.Enhance overall system security. “Before BIOS update, please download Intel ME update too…
Version 4201 - January 17, 2025: 1.Intel ME FW updated to 11.12.97.2614. 2.Enhance system stability and compatibility. “Before BIOS update, please download Intel ME update tool from ASUS suppo…
Version 4001 - June 7, 2024: 1. This update includes the patch for the LogoFAIL vulnerabilities. 2. Improve system stability. “Before BIOS update, please download Intel ME update tool from…
Version 3801 - September 7, 2023: 1. Recommended for vital update to mitigate the potential security vulnerabilities 2. Improve system stability “Before BIOS update, please download Intel ME up…
Version 3701 - June 28, 2022: 01. Improved system stability 02. Strengthened system security and robustness 03. Improved memory compatibility Before running the USB BIOS Flashback tool, ple…
Version 3601 - November 10, 2021: 1.Update Intel ME firmware. 2.Improve system stability Before running the USB BIOS Flashback tool, please rename the BIOS file (X299D2.CAP) using BIOSRenamer.
Version 3501 - August 3, 2021: - 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 (X299D2…
Version 3403 - March 25, 2021: Before running the USB BIOS Flashback tool, please rename the BIOS file (X299D2.CAP) using BIOSRenamer.
Version 3301 - January 5, 2021: -improve system stability -Improve system performance. Before running the USB BIOS Flashback tool, please rename the BIOS file (X299D2.CAP) using BIOSRenamer
Version 3201 - November 9, 2020: 01. Improve system performance and stability. 02. Fix SSD device issue. Before running the USB BIOS Flashback tool, please rename the BIOS file (X299D2.CAP) us…
Version 3105 - August 17, 2020: 1.Update Intel ME firmware 2.Update Intel Microcode 3.Improve system performance 4.Improve DRAM performance and compatibility 5.Improve Intel RST & RSTe driver…
Version 3006 - February 14, 2020: Improve system performance and stability Improve DRAM stability Update RC code for new CPU Update ME FW Update IRST and RSTe driver Fix AURA issue when using I…
Version 0802 - October 4, 2019: 1.Add support for Intel® Core™ X-Series 10000 Processor Family 2.Improve system performance and stability. Before running the USB BIOS Flashback tool, please r…
Version 0703 - July 22, 2019: Improve system performance & stability. Updated Intel security issue. Updated ME to ver.11.11.65 Improved DRAM compatibility " Before running the USB BIOS Flas…
Version 0603 - June 14, 2019: Improve DRAM compatibility and system performance. Before running the USB BIOS Flashback tool, please rename the BIOS file (X299D2.CAP) using BIOS Renamer
Version 0504 - February 21, 2019: - Improve system performance and stability. - Fixed RAID card issue. - Updated ME FW to ver. 11.11.60.1561 " Before running the USB BIOS Flashback tool, please…
The ASUS PRIME X299-DELUXE II is an ASUS PRIME series mainstream motherboard supporting Intel Core X-series HEDT processors on the LGA2066 socket with DDR4 memory. It targets home office users and mainstream builders and provides a comprehensive feature set for its platform tier. BIOS updates deliver stability improvements, security patches, new processor compatibility, and platform optimizations. It was originally released on June 1, 2017.
What is the latest firmware version of ASUS PRIME X299-DELUXE II?
The latest firmware version of ASUS PRIME X299-DELUXE II is 4301. It was released on March 30, 2026.
What changed in ASUS PRIME X299-DELUXE II firmware version 4301?
ASUS PRIME X299-DELUXE II firmware version 4301 includes the following changes: 1.Improve system stability and performance
2.Update Intel microcode
3.Enhance overall system security.
“Before BIOS update, please download Intel ME update tool from ASUS support site, and update ME firmware to Version 11.12.98.2655 to ensure optimized system settings.”
Before running the USB BIOS Flashback tool, please rename the BIOS file (X299D2.CAP) using BIOSRenamer.
How do I update the ASUS PRIME X299-DELUXE II firmware?
To update the ASUS PRIME X299-DELUXE II firmware, download the latest version (4301) from ASUS's website. Follow ASUS's installation instructions, which typically involve copying the firmware file to a memory card or connecting via USB. You can download the latest firmware from ASUS's support page.
Where can I download the latest ASUS PRIME X299-DELUXE II firmware?
Details and download instructions for the latest ASUS PRIME X299-DELUXE II firmware (version 4301) are on ASUS's official release page: https://www.asus.com/motherboards-components/motherboards/prime/prime-x299-deluxe-ii/helpdesk_bios/
How do I check for ASUS PRIME X299-DELUXE II firmware updates?
You can track ASUS PRIME X299-DELUXE II firmware updates automatically on LatestUpdate.io. We monitor ASUS's releases and notify you when new firmware versions are available, so you never miss an update.
How often does ASUS release firmware updates for ASUS PRIME X299-DELUXE II?
We have tracked 18 firmware versions of ASUS PRIME X299-DELUXE II. Based on historical patterns, updates are released approximately every 326 days. ASUS releases updates to fix bugs, improve performance, and add new features. Track this product on LatestUpdate.io to be notified of future releases.
When is the next ASUS PRIME X299-DELUXE II firmware update expected?
Based on this product's update history, a firmware update for ASUS PRIME X299-DELUXE II is expected soon, between June 7, 2026 and November 14, 2026. Track this product on LatestUpdate.io to be notified when it's released.
Is ASUS PRIME X299-DELUXE II still receiving firmware updates?
Yes, ASUS PRIME X299-DELUXE II received a firmware update within the last year. The most recent version is 4301.
Who makes ASUS PRIME X299-DELUXE II?
ASUS PRIME X299-DELUXE II is manufactured by ASUS. Visit the official product page for more information.