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Machinist X99 Mr9a Pro Bios Site

This board is part of the "no-name" Chinese X99 ecosystem, built around recycled Intel C612 chipsets (often from server pulls). The BIOS is therefore a modified server/workstation BIOS repurposed for enthusiast, Xeon E5 v3/v4, and DDR4 overclocking/tuning.

5. Known BIOS Issues and Workarounds

| Issue | Root Cause | Workaround | | :--- | :--- | :--- | | POST takes 30+ seconds | Memory training on RDIMMs | Enable "Fast Boot" and disable "Memory Scrambling" | | NVMe SSD not detected | CSM disabled / No NVMe driver | Enable CSM, set Storage to UEFI, or inject NvmExpressDxe | | CPU fan always 100% | Incorrect PWM duty cycle | Set "Fan Mode" to PWM in Hardware Monitor tab | | Random reset on wake | C6/C7 deep sleep states | Disable "C6/C7 Report" in CPU Power Management | | No boot after CMOS clear | Defaults misconfigured | Load Optimized Defaults → Save → Reboot twice | machinist x99 mr9a pro bios

While the interface looks dated, the MR9A Pro BIOS contains several powerful menus that allow you to control everything from CPU power limits to storage configurations. Advanced Menu This board is part of the "no-name" Chinese

Turbo Boost Unlock (TBU): For Xeon E5-2600 v3 series CPUs, custom BIOS versions are available that unlock all-core turbo frequencies. Once you are inside the BIOS (especially a

Once you are inside the BIOS (especially a modded one), consider these tweaks:

For the Machinist X99 MR9A Pro, BIOS management often focuses on NVMe detection and enabling overclocking/turbo boost features.

7. Best Settings for Stability & Performance (Tested with E5-2696 v4 + 4x16GB 2400MHz ECC)