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Home › Components › Core Components › Motherboards › Server and Workstation Motherboards
W790 WS R2.0, Intel® W790 Chipset, LGA 4677, E-ATX Motherboard
W790 WS R2.0, Intel® W790 Chipset, LGA 4677, E-ATX Motherboard
W790 WS R2.0, Intel® W790 Chipset, LGA 4677, E-ATX Motherboard
W790 WS R2.0, Intel® W790 Chipset, LGA 4677, E-ATX Motherboard

W790 WS R2.0, Intel® W790 Chipset, LGA 4677, E-ATX Motherboard

  • SKU: 17820035
  • Manufacturer: ASROCK
  • MPN: W790 WS R2.0
  • Availability: USUALLY SHIPS WITHIN 1-3 WEEKS
Price
$530.70
Quantity:
  • Supports 4th Gen Intel® Xeon® W-3400 and W-2400 Processors (LGA4677)
  • 20+2 Power Phase, 90A SPS Design
  • 14 Layer Server-Grade Ultra Low-Loss PCB
  • 8 x DDR5 DIMMs
    Supports Quad Channel ECC Registered memory, up to 6800+ (OC)*
  • 4 PCIe 5.0 x16, 1 PCIe 4.0 x16
  • 4 Blazing M.2 (PCIe Gen5x4), 8 SATA3
    1 U.2 mini SAS Connector (PCIe Gen4x4)
  • 1 USB 3.2 Gen2x2 Type-C (Front)
    2 USB 3.2 Gen2 (Rear)
    7 USB 3.2 Gen1 (3 Rear, 4 Front)
  • 7.1 CH HD Audio (Realtek ALC897 Audio Codec)
  • Marvell AQUANTIA® 10 GbE LAN
    Intel® i226LM 2.5 GbE LAN
  • Supports ASRock Blazing Quad M.2 Card
Unique Feature Superb Productivity
- PCIe Gen5 (Graphics, M.2)
- Quad Channel DDR5
Rock-Solid Durability
- Ultra Low-Loss PCB
- 20+2 Power Phase, 90A SPS
- Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors)
Ultrafast Connectivity
- Marvell (Aquantia) 10GbE LAN
- Intel® 2.5GbE LAN
- Intel® vPro for Workstations with Intel® Advanced Management Technology
EZ Update
- BIOS Flashback Button
- ASRock Auto Driver Installer
CPU - Supports 4th Gen Intel® Xeon® W-3400 and W-2400 Processors (LGA4677)
- Supports Intel® Boot Guard
- Supports Intel® Trusted Execution Technology (Intel® TXT)
- Supports Intel® Turbo Boost Technology
- Supports Intel® Virtualization Technology (Intel® VT)
- Supports Intel® Hyper-Threading Technology (Intel® HT Technology)
- Supports Intel® Data Streaming Accelerator (Intel® DSA)
- Supports CXL (Compute Express Link) 1.1
Chipset - Intel® W790
- Supports Intel® vPro Technology
- Supports Intel® Active Management Technology
Memory - Quad Channel DDR5 Memory Technology
- 8 x DDR5 DIMM Slots*
- Supports DDR5 ECC, buffered memory (RDIMM/ RDIMM-3DS/ RDIMM-9x4) up to 6800+(OC)**
- Max. capacity of system memory: 2TB

*S3 (Sleep) mode is supported only when 1 / 2 / 4 DIMMs memory modules are installed.
1DPC Up to 6800+ MHz (OC) with X-Series CPU, 4800 MHz Natively for Xeon® W9, Xeon® W7 and Xeon® W5.
2DPC Up to 6200+ MHz (OC) with X-Series CPU, 4400 MHz Natively for Xeon® W9, Xeon® W7 and Xeon® W5.
Supports 4400 MHz Natively for Xeon® W3, W5-3423 and W5-3433. Overclocking is not supported.

**Actual support may vary by CPU
BIOS - 256Mb AMI UEFI Legal BIOS with GUI support
Graphics - n/a
Audio - 7.1 CH HD Audio (Realtek ALC897 Audio Codec)
- Nahimic Audio
LAN 1 x 10 Gigabit LAN 100/1000/2500/5000/10000 Mb/s (Marvell (Aquantia) AQC113CS)
- Support Wake-On-LAN
- Support PXE
1 x 2.5 Gigabit LAN 10/100/1000/2500 Mb/s (Intel® I226LM)
- Support Wake-On-LAN
- Support PXE
- Supports Intel® vPro Technology
Slots CPU:
- 4 x PCIe 5.0 x16 Slots (PCIE1/PCIE3 at x16; PCIE2/PCIE5 at x8)*
Chipset:
- 1 x PCIe 4.0 x16 Slot (PCIE4), supports x4 mode*

- 15μ Gold Contact in VGA PCIe Slots

*Supports NVMe SSD as boot disks
Storage CPU:
- 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2230/2242/2260/2280 PCIe Gen5x4 (128 Gb/s) mode*
- 2 x Blazing M.2 Sockets (M2_2 and M2_3, Key M), support type 2260/2280 PCIe Gen5x4 (128 Gb/s) mode*
- 1 x Blazing M.2 Socket (M2_4, Key M), supports type 2260/2280 PCIe Gen5x4 (128 Gb/s) mode*
Chipset:
- 8 x SATA3 6.0 Gb/s Connectors
- 1 x U.2 Connector, supports PCIe Gen4x4 (64 Gb/s) mode

* Supports Intel® Volume Management Device (VMD)
Supports NVMe SSD as boot disks
RAID - Supports RAID 0, RAID 1, RAID 5 and RAID 10 for SATA storage devices
- Supports RAID 0, RAID 1, RAID 5 and RAID 10 for M.2 NVMe storage devices
USB - 1 x USB 3.2 Gen2x2 Type-C (Front)
- 2 x USB 3.2 Gen2 Type-A (Rear)
- 7 x USB 3.2 Gen1 (3 Rear, 4 Front)
- 3 x USB 2.0 (Front)

* All USB ports support ESD Protection
Connector - 1 x Virtual RAID On CPU Header
- 1 x SPI TPM Header
- 1 x Chassis Intrusion and Speaker Header
- 1 x CPU Fan Connector (4-pin)*
- 1 x CPU/Water Pump Fan Connector (4-pin) (Smart Fan Speed Control)**
- 3 x Chassis/Water Pump Fan Connectors (4-pin) (Smart Fan Speed Control)***
- 1 x 24 pin ATX Power Connector (Hi-Density Power Connector)
- 2 x 8 pin 12V Power Connectors (Hi-Density Power Connector) (for Motherboard)
- 1 x 6 pin 12V Power Connector (Hi-Density Power Connector) (for Motherboard)****
- 2 x 8 pin 12V Power Connectors (Hi-Density Power Connector) (for PCIe card)*****
- 1 x Front Panel Audio Connector
- 2 x USB 2.0 Headers (Support 3 USB 2.0 ports)
- 2 x USB 3.2 Gen1 Headers (Support 4 USB 3.2 Gen1 ports)
- 1 x Front Panel Type C USB 3.2 Gen2x2 Header (20 Gb/s)
- 1 x Clear CMOS Button
- 1 x Dr. Debug with LED
- 1 x Power Button with LED
- 1 x Reset Button with LED

* CPU_FAN1 supports the fan power up to 1A (12W).

** CPU_FAN2/WP_3A supports the fan power up to 3A (36W).

*** CHA_FAN1~3/WP support the fan power up to 2A (24W).
CPU_FAN2/WP_3A and CHA_FAN1~3/WP can auto detect if 3-pin or 4-pin fan is in use.

**** It is optional to connect an ATX 12V 6-pin Cable to ATX12V3, which provides more power for overclocking.

***** Use either GTX_12V1 or GTX_12V2 when you install one or two PCIe card(s). Use both connectors when you install more than two PCIe cards. Otherwise, the system may not boot up properly.
Rear Panel I/O - 1 x Optical SPDIF Out Port
- 2 x USB 3.2 Gen2 Type-A Ports (10 Gb/s)
- 3 x USB 3.2 Gen1 Type-A Ports
- 2 x RJ-45 LAN Ports
- 1 x BIOS Flashback Button
- 1 x Line Out Jack (Gold Audio Jack)
- 1 x Microphone Input Jack (Gold Audio Jack)
Software and UEFI Software
- ASRock Motherboard Utility (A-Tuning)
UEFI
- ASRock My Favorites in UEFI
- ASRock Auto Driver Installer
- ASRock Instant Flash
- ASRock Easy RAID Installer

*These utilities can be downloaded from ASRock Live Update & APP Shop.
Accessories - 1 x User Manual
- 1 x I/O Shield
- 4 x SATA Data Cables
- 1 x CPU Carrier for LGA 4677 E1A
- 1 x CPU Carrier for LGA 4677 E1B
- 4 x Screws for M.2 Sockets
- 2 x Standoffs for M.2 Sockets
Form Factor - EATX Form Factor: 12.0-in x 10.9-in, 30.5 cm x 27.7cm
- 14 Layer PCB
OS - Microsoft Windows® 10 64-bit / 11 64-bit
- Linux

* Linux supported by Intel® via the upstreaming of Intel® Linux drivers to the Linux Open Source Community. Adoption into individual Linux distributions is dependent upon the OS vendor
Certifications - FCC, CE
- ErP/EuP ready (ErP/EuP ready power supply is required)
- CEC Tier II ready