Machinist X99-PR9 Review

The Machinist X99‑PR9 is a solid entry‑level motherboard for LGA2011‑3 that stands out thanks to its surprisingly decent stock firmware and reliable build quality for the price.

There are several similar boards from the same manufacturer: Machinist X99‑PR8 (DDR3 version with limited CPU compatibility) and Machinist X99‑PR9‑H (simplified model based on the HM55 chipset).

Specifications

The board is built around desktop B85, Q87, or Z97 chipsets, though some units ship with the server‑grade C222. Regardless of the PCH, the overall functionality remains identical.

Like most budget boards, the X99‑PR9 features a VRM design with three doubled phases (3×2) and two MOSFETs per phase. It employs SM4377NHKP (50 A / 7 mΩ) and SM4522NHKP (110 A / 2.65 mΩ) MOSFETs, uP1961S (×3) drivers, and a uP1649Q controller. This setup handles entry‑ and mid‑range CPUs without issues. Higher‑TDP models (~120 W+) are possible, but we recommend extra airflow across the VRM in those cases.

There’s a 2‑pin fan header next to the VRM heatsink where you can attach a small blower — handy for adding localized cooling.

Storage consists of three SATA 6 Gb/s (SATA III) ports and one M.2 slot. The M.2 slot supports both NVMe (default) and SATA modes — switching between them requires adjusting the jumpers shown in the image below.

Beyond that, this model doesn’t drift far from other budget options and inherits most of the traditional drawbacks common to Chinese LGA2011-3 boards:

Common Limitations of Budget Chinese X99 Motherboards:

Temperature Monitoring Issues

Temperature monitoring doesn’t work properly on most budget Chinese X99 boards. Onboard sensors are non-functional and display erratic readings (such as 120°C+ in monitoring software like AIDA64) due to faulty controller implementation. However, CPU temperature monitoring via the processor’s built-in sensors remains accurate.

Limited Fan Control

Automatic control is only available for 4-pin PWM fans. 3-pin case fans run at constant speeds without automatic regulation. You may need to use manual fan controllers or PWM splitters/hubs as a workaround.

BIOS Limitations

The stock BIOS is often unoptimized. While it contains numerous settings and options, many of them simply don’t function as intended or have no actual effect on system behavior.

Most critically, memory timing controls are hidden in the stock BIOS. This prevents manual RAM overclocking and fine-tuning. However, you can solve this by flashing modified BIOS versions that unlock these hidden advanced memory timing options and other locked features.

AIDA64 Freezing

Chinese boards with desktop chipsets (H81, B85, Q87, etc.) have incompatible or bugged temperature sensors that cause AIDA64 to freeze.

Fix: Disable the faulty sensor in AIDA64

• Turn on the status bar: Go to View → Status Bar
• Right-click the status bar at the bottom → HWMon Modules → uncheck PCH / Bibxy
• If this doesn’t work, disable all sensors and enable them one by one to identify the culprit.

BIOS Capabilities

The stock firmware is this model’s strong point. The BIOS is based on American Megatrends code and looks similar to other Chinese boards, but it includes almost everything you need: from DRAM timing controls to Resizable BAR (ReBAR) support. There’s even separate control for the second 4‑pin fan header. The only real upgrade worth considering is the Turbo Boost Unlock (TBU) mod for Haswell-E (V3) Xeons. If you are running a Broadwell-E (V4) CPU, there is little reason to touch the stock firmware at all.

Simple BIOS Flashing Guide (Windows)

1. Download FPTW 9.1.10 from this page.
2. Open Command Prompt as Administrator.
3. Copy your BIOS file (bios.bin or bios.rom) into the same folder as FPTW.
4. In the Command Prompt, navigate to the FPTW folder using the cd command.
5. Flash the BIOS with the following command: fptw64 -f bios.bin

Note: Replace bios.bin with the actual name of your modded BIOS file, if it’s different.

After flashing, reset settings to defaults (Clear CMOS) before first boot.

Must-have Tool

If you experiment with BIOS or work with computer hardware, there’s one tool worth keeping close at hand — the CH341A programmer. It allows you to directly read and flash SPI BIOS chips, often saving motherboards after a failed update.

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Frequently Asked Questions

The board won’t boot, black screen, etc. What should I do?

See our article about the most common LGA2011‑3 issues.

Where can I find drivers for this board?

You can find up-to-date drivers for LGA2011-3 platforms on this dedicated page.

Is there a manual available, maybe a PDF?

The official Machinist manual can be downloaded here.

How do I connect the front panel?

Conclusion

Written by

Dmitrii Sadikov

Senior Hardware Specialist proving you don't need top-tier gear to game. Expert in smart upgrades and budget-friendly PC restoration.

Published: July 24, 2025 Updated: June 22, 2026