Asus ROG MAXIMUS Z890 APEX
Specifications
- Manufacturer: Asus
- Chipset: Z890
- Socket: LGA1851
- Form Factor: ATX
- DIMM Slots: 2
- Color: White
BIOS Update Status
- Microcode 0x117
Contains Intel Maintainence Release 1.
- Microcode 0x11A
Performance and stability improvements with Intel Maintainence Release 4 (MR4).
- Microcode 0x121
Updates compatibility tables for future Intel Core Ultra processor steppings and improves system stability.
Latest BIOS Version
"1. Updated ME to version 19.0.11.2289 and Pure ME file to 19.0.11.2289v0.4.2. Enhanced HUDIMM compatibility. 3. Optimized overall system performance.Updating this BIOS will simultaneously update the corresponding Intel ME to version 19.0.11.2289v0.4.The ME version will remain updated even if you roll back to an older BIOS later. We recommend using EZ Flash to update the BIOS, as it supports ZIP format and auto-updates the ME. If using USB BIOS FlashBack, ensure the ME version matches the BIOS version and rename the BIOS file with BIOSRenamer before proceeding.Before running the USB BIOS Flashback tool, please rename the BIOS file (A5565.CAP) using BIOSRenamer."
BIOS Release Notes Analysis
Launch Stability & Compatibility
Initial firmware releases focus on stabilizing the LGA1851 platform and resolving early resource allocation issues. Version v0806 integrates Microcode 0x110 to support the initial launch of Intel Core Ultra 200S processors, while simultaneously resolving address conflicts between integrated (iGPU) and discrete (dGPU) graphics. Subsequent updates v0902 and v1002 enforce Intel Innovation Platform Framework and VT-d as enabled defaults to ensure driver stability. These versions also integrate Microcode 0x112, which mitigates DLVR bypass risks to enforce voltage safety limits, and enable WiFi 6GHz band support for specific regions.
Feature Maturity & Hardware Support
Mid-cycle updates prioritize memory signal integrity and processor power management. Version v1101 updates to Microcode 0x113, optimizing Energy Performance Preference (EPP) grouping for better core responsiveness in balanced power plans. Version v1203 addresses critical gaming latency and frame-time spikes via Microcode 0x114 (fixing PPM logic) and introduces CUDIMM Dual PLL mode for frequencies exceeding 6000MHz. Memory support is further refined in v1401[Beta] and v1501, which enable AEMP III to support high-capacity Kingston CUDIMMs at speeds up to 7000MT/s. Version v1603 finalizes these improvements by integrating Microcode 0x117 to enhance CUDIMM signal integrity and introduces DLRM states for storage power reduction.
Critical Security & Power Management
Recent firmware ensures long-term platform viability and security compliance. Version v1703 introduces DIMM Fit Pro and updates retimer firmware to support Thunderbolt 5 devices. Performance profiles are expanded in v1801 with official support for Intel 200S Boost. The lifecycle concludes with v3002, which updates the AMI BIOS codebase and integrates Microcode 0x121 to update compatibility tables for future Intel Core Ultra processor steppings. Cumulative security patches and Management Engine updates (reaching v19.0.5.2175v0.2) are distributed across versions v2006 through v2302 to harden the system against vulnerabilities.
ℹ️AI-synthesized summary derived from official changelogs and verified microcode specifications. Always verify with the manufacturer.