EATX motherboard PR811-C622

Intel® XeonIntel® C622DDR4-RDIMM

Overview

The PR811-C622 is an EATX server motherboard designed for edge and industrial server applications. It supports 1st and 2nd Generation Intel® Xeon® Scalable processors (LGA 3647) and up to 768GB DDR4 across 12 ECC RDIMM sockets, targeting high-performance computing, multi‑GPU and expansion‑dense configurations with extensive I/O and enterprise storage features.

Key features

• EATX form factor (305 mm x 330 mm)
• Supports Intel® 1st & 2nd Gen Xeon® Scalable (LGA 3647), CPUs up to 165W TDP
• 12 × 288-pin ECC RDIMM sockets — up to 768GB DDR4 (2133/2400/2666/2933 MHz)
• High-speed networking: 2 × Intel® 10GbE + 2 × Intel® GbE
• Expansion: up to 5 × PCIe x16 (Gen3), 1 × PCIe x8 (Gen3, open edge), 1 × M.2 2280 M-key (PCIe Gen3 x4 NVMe/SATA)
• Storage: 8 × SATA 3.0 (6 Gb/s) with RAID 0/1/5/10 support
• Optional display: VGA (up to 1920×1200 @60Hz)
• BMC module slot compatible with SEM2500/SEM2510; IPMI 2.0 available on relevant SKUs
• Security: TPM 2.0 support
• Bios: Insyde; Certifications: CE, FCC, RoHS, UKCA

Technical specifications

• Model: PR811-C622
• Chipset: Intel® C622
• Processor support: Intel® 1st & 2nd Gen Xeon® Scalable (LGA 3647); example CPUs listed by vendor (TDPs vary by SKU)
• Memory: 12 × 288-pin ECC RDIMM, up to 768GB DDR4 (2133/2400/2666/2933 MHz)
• Graphics/display: 1 × VGA (optional), up to 1920×1200 @60Hz
• Expansion slots: 5 × PCIe x16 (Gen3), 1 × PCIe x8 (Gen3, open edge), 1 × M.2 2280 M-key (PCIe Gen3 x4 NVMe/SATA), 1 × BMC module slot (SEM2500/SEM2510)
• Ethernet: 2 × Intel® I210AT (1GbE), 1 × Intel® x557-AT2 (10GbE); rear I/O typically: 2 × GbE (RJ-45), 2 × 10GbE
• Rear I/O (representative): IPMI 2.0 (on specific SKUs), 1 × RS-232 (DB-9), 4 × USB 3.2 Gen1, optional USB 2.0 stack, 1 × VGA (opt.)
• Internal I/O: 1 × RS-232, 2 × USB 3.2 Gen1, 2 × USB 2.0, 1 × USB 2.0 vertical Type A
• Audio: ALC887 codec
• Storage: 8 × SATA 3 (6 Gb/s); RAID 0/1/5/10 supported
• SMBus: 1 × SMBus; Watchdog timer: programmable 1–255 s
• Security: TPM 2.0
• Power connectors: 8-pin ATX 12V, 24-pin ATX
• RTC battery: CR2032
• OS support: Windows 10 IoT Enterprise LTSB RS5 (64-bit), Windows Server 2016/2019, Linux
• Environment: Operating 0–40°C; Storage −40–85°C; Humidity 5–90% RH
• Dimensions: 305 mm × 330 mm (EATX)
• Country of origin: Taiwan

Certifications & compliance

• Certifications: CE, FCC, RoHS, UKCA
• Optional modules and SKUs may change features (BMC/IPMI, VGA)