Asus ROG MAXIMUS Z790 APEX ENCORE
Specifications
- Manufacturer: Asus
- Chipset: Z790
- Socket: LGA1700
- Form Factor: ATX
- DIMM Slots: 2
- Color: Black
BIOS Update Status
- Microcode 0x129
Microcode update 0x129 addresses an issue where the processor may request high voltages, potentially leading to accelerated degradation.
- Microcode 0x12B
Microcode update 0x12B addresses elevated voltage requests by the processor during idle and/or light activity periods (includes 0x129).
- Microcode 0x12F
Microcode update 0x12F to further address processor degradation on systems with light activity.
Latest BIOS Version
"1. Enhance overall system security.2. pdate the ME Firmware version to 16.1.38.2676.Updating this BIOS will simultaneously update the corresponding intel ME to version 16.1.38.2676. Please note after you update this BIOS, the ME version remains the updated one even if you roll back to an older BIOS later.Before running the USB BIOS Flashback tool, please rename the BIOS file (A5470.CAP) using BIOSRenamer."
BIOS Release Notes Analysis
Launch Stability & Compatibility
Initial firmware releases focused on expanding memory density and hardening boot security. Version 0507 improved signal integrity for DDR5 modules, while v0904 enabled support for high-capacity 256GB memory configurations. Security protocols were strengthened in v0801, which mitigated the LogoFAIL vulnerability and updated default PCIe bandwidth bifurcation logic to ensure reliable device enumeration.
Feature Maturity & Hardware Support
Mid-cycle updates prioritized processor power management and architectural alignment for 14th Gen CPUs. Version 1002 integrated Microcode 0x123, allowing users to disable CEP (Current Excursion Protection) on non-K processors to optimize performance. Subsequent releases v1202 and v1301 standardized power delivery by implementing Intel Default Settings and the Intel Baseline Profile, redefining the "Load Optimized Defaults" behavior to strictly adhere to factory voltage and power limits rather than legacy overclocking presets.
Critical Security & Power Management
Later revisions systematically addressed Vmin Shift Instability through iterative microcode patches. Version 1402 applied Microcode 0x125 to fix critical eTVB algorithm errors, followed by v1503 (Microcode 0x129) which introduced a voltage clamp to prevent physical degradation. Version 1703 (Microcode 0x12B) resolved root-cause idle voltage spikes, while v2001 (Microcode 0x12F) provided advanced mitigation for remaining instability risks. Final maintenance in v2107 updated the ME Firmware to 16.1.38.2676 to enhance overall system security.
ℹ️AI-synthesized summary derived from official changelogs and verified microcode specifications. Always verify with the manufacturer.