Title: ASRock W790 WS R2.0 — LGA4677 Workstation Motherboard (Intel W790, 4× PCIe 5.0 x16, 10GbE + 2.5GbE)
Short Excerpt: EATX workstation board for Intel® Xeon® W-3400/W-2400. 8× DDR5 ECC RDIMM (up to 2 TB), 4× PCIe 5.0 x16, 4× M.2 Gen5, U.2 (Gen4x4), 8× SATA, Marvell 10GbE + Intel 2.5GbE, front USB-C 20 Gb/s, BIOS Flashback.
Overview:
Unleash incredible power with the ASRock W790 WS R2.0, designed for the most demanding workstation tasks. Its robust 20+2 power phase VRM with 90A SPS and a 14-layer server-grade PCB deliver unwavering stability under heavy CPU, GPU, and memory loads. For extreme I/O, you get PCIe 5.0 x16 slots for multi-GPU/NIC/accelerators, Blazing M.2 Gen5 SSD support, and dual LAN (10GbE + 2.5GbE). If you’re building for AI, 3D, simulation, or high-speed storage, this board is a rock-solid foundation for peak efficiency and reliability.
Key Features:
• CPU Support: Intel® Xeon® W-3400/W-2400 (LGA4677)
• Power & PCB: 20+2 phase VRM, 90A SPS, 14-layer ultra low-loss server-grade PCB
• Memory: 8× DDR5 ECC RDIMM (incl. 3DS/9x4), quad-channel, up to 6800+ (OC), max 2 TB
• Expansion: 4× PCIe 5.0 x16 (CPU) + 1× PCIe 4.0 x16 (chipset, wired x4)
• Storage: 4× Blazing M.2 (PCIe Gen5 x4), 1× U.2 (PCIe Gen4 x4), 8× SATA 6 Gb/s
• Networking: Marvell AQUANTIA® 10GbE + Intel® i226LM 2.5GbE
• USB: Front USB 3.2 Gen2x2 Type-C (20 Gb/s), Rear 2× USB 3.2 Gen2 Type-A, 7× USB 3.2 Gen1 total (3 rear, 4 front)
• Audio: 7.1-ch HD (Realtek ALC897) with Nahimic Audio + optical S/PDIF
• Convenience: BIOS Flashback, Dr. Debug LED, onboard power/reset, reinforced PCIe 5.0 steel slots
• Form Factor: EATX (12.0″ × 10.9″)
Specifications:
• Chipset: Intel W790
• Socket: LGA4677 (Xeon W-3400/W-2400)
• Memory: 8× DDR5 ECC RDIMM families, quad-channel, up to 2 TB; OC up to 6800+ (CPU/DIMM dependent)
• PCIe: 4× PCIe 5.0 x16 (CPU), 1× PCIe 4.0 x16 (x4 from chipset)
• M.2: 4× M-key (PCIe Gen5 x4; mixed 2230/2242/2260/2280 support per slot)
• U.2: 1× (PCIe Gen4 x4)
• SATA: 8× SATA 6 Gb/s; RAID 0/1/5/10 (SATA) and NVMe RAID support
• LAN: 1× 10GbE (AQC113CS) + 1× 2.5GbE (Intel i226LM)
• Rear I/O: 2× USB-A 10 Gb/s (Gen2), 3× USB-A 5 Gb/s (Gen1), dual RJ-45, optical S/PDIF, line-out, mic-in, BIOS Flashback button
• Internal I/O: 1× front USB-C 20 Gb/s (Gen2x2), headers for 4× USB-A 5 Gb/s (Gen1) + USB 2.0, front audio
• Fan/Power Headers: CPU_FAN, CPU/W_PUMP (up to 3A), multiple CHA/W_PUMP (up to 2A)
• Power Inputs: 24-pin ATX, 2× 8-pin CPU, optional 6-pin 12V for slot stability
• Audio Codec: Realtek ALC897 with Nahimic
• OS Support: Windows 10/11 64-bit, Linux
What’s in the Box:
• ASRock W790 WS R2.0 (EATX)
• I/O shield, user manual
• 4× SATA cables
• LGA4677 CPU carriers (E1A/E1B)
• M.2 screws/standoffs
Options / Upgrades:
• PCIe 5.0 add-in cards (e.g., NVMe carrier/HBA, AI accelerators, 100GbE/IB adapters)
• Additional NVMe via U.2/U.3 or PCIe bifurcation cards
• Front-panel USB-C 20 Gb/s case modules
Warranty: 3-year limited (manufacturer)
Lead Time: In stock. Ships within 1–3 business days (subject to inventory).
SKU: HCT-ASR-W790WS-R2