MACHINIST X99 MR9S ATX Motherboard LGA 2011-3 Supports TPM 2.0 Intel Xeon E5 V3/V4 CPU DDR4 RAM Memory NVME M.2 USB3.0
Computer Components
“The Machinist X99 MR9S is an LGA2011-3 ATX board that names specific strengths: support for Intel Xeon E5 v3/v4 CPUs and quad-channel DDR4 (3200MHz OC) plus multiple M.2 slots and PCIe 3.0 x16 lanes for GPU/NVMe expansion. It’s a capable budget workstation board for multi‑threaded/ storage‑heavy builds, but the use of an 8-series/B85‑class chipset (limited USB3/SATA), inconsistent BIOS/revision behavior (S3 sleep fixes across revisions), and quirks like capped memory recognition mean it’s best for tinkerers comfortable managing firmware quirks rather than plug‑and‑play buyers.”
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Run Xeon E5 v3/v4 CPUs for many-core workstation and server workloads.
buildmypconline.usIntel Xeon E5 v3/v4 processors
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Quad-channel DDR4 with up to 3200MHz (OC) boosts memory bandwidth for multithreaded tasks.
buildmypconline.ussupports speeds up to 3200MHz (OC)
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Multiple M.2 slots (NVMe + SATA-capable variants) enable fast boot and high-speed storage arrays.
buildmypconline.usan M.2 NVMe slot for ultra-fast SSDs
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PCIe 3.0 x16 lanes and multiple full-length slots support GPUs and expansion cards.
oldrigrevive.comx16 (Gen 3.0)
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Active-cooled VRM design helps sustain CPU power delivery under heavy loads.
youtube.com (Miyconst)active cooling VRM system
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Uses an 8-series/B85-class chipset limiting native I/O to two USB 3.0 ports.
oldrigrevive.comonly two USB 3.0 ports
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Chipset choice also yields mixed SATA: four SATA III plus two slower SATA II ports.
oldrigrevive.comtwo slower SATA II ports
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Some boards fail to recognize very large RAM configs — 512GB reported unsupported.
youtube.com (Miyconst)does not work with 512 GB of memory
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Onboard audio quality described as mediocre compared with typical workstation boards.
oldrigrevive.commediocre onboard audio
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Vendor produces many undocumented hardware revisions; no public changelog complicates support.
oldrigrevive.comvendor does not maintain a public changelog
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BIOS behavior varies by unit; some users must use custom drivers or workarounds for audio.
youtube.com (Miyconst)problem with the driers installation