If your system fails to boot with mixed RAM modules, change the or Interleaving settings to a lower, safer profile. 3. PCIe Speed Allocation
Injecting a voltage offset (typically between -50mV to -90mV) directly into the BIOS payload to keep temperatures stable under the permanent Turbo clock.
Stock Intel behavior drops the CPU clock speed as more cores are utilized to keep power draw low. The Turbo Boost Unlock replaces the CPU microcode loaded by the BIOS during boot with an empty or modified driver payload. Combined with a voltage offset (undervolting), the CPU maintains its highest possible clock rate across all cores under full load without hitting thermal or power walls. The Risk and General Process
For any user of the Machinist X99 MR9A PRO, moving to the community-developed "top" BIOS is highly recommended. While it does carry a risk (always back up your original BIOS), it is a risk well worth taking to unlock the true performance of this budget platform.
Machinist X99 MR9A Pro BIOS is a standard American Megatrends (AMI) interface common to Chinese X99 motherboards machinist x99 mr9a pro bios top
Rufus software (to create a bootable FreeDOS drive) or FPT (Flash Programming Tool) for Windows. Method 1: Using FPT (Flash Programming Tool) via Windows
Ensure the PCIe port configuration matching your main GPU slot is set to instead of Auto or Gen 2. The Holy Grail: Xeon E5 V3 Turbo Boost Unlock (Haswell-E)
Download the Intel ME System Tools v9.1 or v10.0 (depending on your chipset generation). Open Command Prompt as an .
The most recent stable official BIOS version, as seen in hardware probes, is v5.11 , with a release date of April 29, 2023 . This version is generally pre-installed on newer revisions of the board and ensures broad compatibility with standard Xeon E5 v3/v4 CPUs. For most users looking for a stable, "plug-and-play" experience, this is the recommended starting point. If your system fails to boot with mixed
is a revised version of the original MR9A, primarily differentiated by the addition of a , an active cooling fan on the VRM heatsink, and a plastic I/O shroud. While the stock BIOS is functional for standard use, it is widely considered "janky" or limited by enthusiasts, often requiring custom firmware to unlock the platform's full potential. BIOS Interface & Features The board uses a standard AMI (American Megatrends) BIOS .
Drops the CPU core voltage (typically by -50mV to -100mV) to reduce heat, lower power consumption, and prevent thermal throttling during the Turbo Lock.
Before diving into the BIOS update process, let's take a closer look at what makes the Machinist X99 MR9A Pro such a popular choice. This motherboard supports up to 128GB of DDR4 RAM, features a robust power delivery system, and offers a wide range of connectivity options, including USB 3.0, SATA 3, and high-quality audio capacitors. Its ATX form factor makes it compatible with a wide range of computer cases, and its comprehensive cooling solutions ensure that your system runs smoothly even under heavy loads.
If an aggressive memory timing or an incorrect setting prevents the system from posting (showing a black screen): Turn off the PC and unplug the power supply cable. Stock Intel behavior drops the CPU clock speed
Disable this if you are running modern hardware and a UEFI OS. Enable it only if you are troubleshooting older graphics cards. 2. Memory Configuration (RAM Speed & Timings)
There is also a common "MAX" revision of this board (e.g., X99-MR9A PRO MAX ). It is visually similar but features a more robust 8-phase VRM (vs. 4-phase virtual), a relocated CPU power connector for better cable management, and official TPM 2.0 support. While many BIOS files are cross-compatible between "MR9A PRO" and "MR9A PRO MAX," it is critical to double-check your PCB (Printed Circuit Board) revision (e.g., V1.0, V1.2, V2.1) before flashing. Using the wrong BIOS file can lead to a bricked motherboard.
Displays system time, date, BIOS build version, and basic CPU and memory installation status.