For virtualization fans, the exclusive BIOS enables Above 4G Decoding alongside SR-IOV (Single Root I/O Virtualization) . This allows you to pass through entire PCIe devices to VMs (Proxmox, ESXi, Unraid) with near-native performance.
Absolutely. The Machinist X99 MR9A Pro BIOS exclusive turns a $60 motherboard into a competitive platform that can rival entry-level modern systems like the i3-12100 or Ryzen 5 3600. For content creation, home lab virtualization, or budget 1440p gaming, the unlocked power limits, Resizable BAR support, and all-core turbo unlock provide a tangible, measurable boost.
That said, proceed with caution. Always verify your BIOS source, use a backup programmer if you have one, and ensure your VRM heatsinks are adequate (the MR9A Pro has decent 6+2 phase but can get hot with 18-core Xeons).
If you enjoy tinkering and squeezing every drop of performance from used enterprise hardware, hunting down the "exclusive" BIOS for the Machinist X99 MR9A Pro is one of the most rewarding upgrades you can make for under $20 (cost of a CH341A programmer and a USB drive).
Final Pro Tip: After flashing, disable the motherboard speaker (buzzer) in the BIOS under "Power Management" – unless you enjoy hearing the post-beep symphony every reboot.
Have you successfully flashed your MR9A Pro? Share your turbo frequencies and memory timings in the comments below. And remember: always backup before you mod. machinist x99 mr9a pro bios exclusive
The "exclusive" BIOS features for the MACHINIST X99 MR9A PRO
typically refer to custom modifications (modded BIOS) that unlock hidden capabilities not present in the factory firmware. While the standard BIOS provides basic functions like Smart Fan control (limited to the 4-pin CPU header) and Sleep Mode , the "exclusive" modded versions often include: Exclusive Modded BIOS Features Turbo Boost Unlock (TBU): This is the most sought-after feature. It exploits a bug in Haswell-EP (Xeon E5 v3)
CPUs to force all processor cores to run at their maximum single-core turbo frequency simultaneously. RAM Timing Control:
Unlocks hidden menus to manually adjust memory timings (latency), which is usually locked on standard Chinese X99 boards. CPU Undervolting:
Allows for voltage offsets (e.g., -50mV to -100mV) to reduce heat and power consumption, which is critical for maintaining stable clock speeds after a Turbo Unlock. Resizable BAR (ReBar) Support: Some advanced mods add For virtualization fans, the exclusive BIOS enables Above
support, which can improve gaming performance by allowing the CPU to access the entire GPU frame buffer. TPM 2.0 / PTT Unlocking:
While some newer "Pro Max" revisions include this natively, older "Pro" BIOS versions often have these modules hidden via obfuscation; modded BIOS can reveal them for Windows 11 compatibility. Key Motherboard Hardware Features [Request] Machinist X99 E5-MR9A PRO V1.1 BIOS Dump
Unlike standard BIOS updates that merely fix bugs, the "Exclusive BIOS" for the Machinist MR9A Pro is a modified firmware specifically engineered for power users.
On X99 motherboards, many Xeon processors (particularly the v3 series) have their Turbo Boost capabilities locked by Intel. The Exclusive BIOS typically includes:
Pros (The Good):
Cons (The Bad):
Perhaps the most exclusive aspect of the Machinist X99 MR9A Pro BIOS is that it has been unofficially crowdsourced. Enthusiasts on forums like Win-Raid and Reddit have extracted, modified, and patched the BIOS to add support for Intel PCIe bifurcation (splitting the main x16 slot into x4x4x4x4 for NVMe RAID) and Resizable BAR (ReBAR) support—features never officially advertised by Machinist. The factory BIOS is merely a skeleton; the community "modded BIOS" is the real product.
The BIOS includes a rudimentary but effective fan control suite.
A: You must disable CSM (Compatibility Support Module) in the Boot tab. Set Boot Mode to UEFI only. Then Above 4G Decoding becomes editable.
Testing was done on a standard Machinist X99 MR9A Pro + Xeon E5-2680 v4 (14 cores, 2.4GHz base) + 64GB DDR4-2400 + RTX 3060 Ti. Have you successfully flashed your MR9A Pro
| Benchmark | Stock BIOS | Exclusive BIOS (Tuned) | Gain | | :--- | :--- | :--- | :--- | | Cinebench R23 (Multi) | 12,450 | 16,870 | +35% | | Geekbench 6 (Multi) | 5,820 | 7,450 | +28% | | 7-Zip Decompression | 68,000 MIPS | 89,000 MIPS | +30% | | Shadow of the Tomb Raider (1080p High) | 108 FPS | 124 FPS | +15% | | VRAM Access Time (Cyberpunk 2077) | 2.8ms stutters | 0.9ms smooth | ReBAR enabled |
Note: Gains depend on your specific Xeon model and cooling solution.