Learn more about ASRock W790 WS

Model

Brand

ASRock

Model

W790 WS

Supported CPU

CPU Socket Type

LGA 4677

CPU Type

Supports 4th Gen Intel Xeon W-3400 and W-2400 Processors (LGA4677)

Supported CPU Technologies

Supports Intel Optane Persistent Memory
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 ASRock Hyper BCLK Engine

Chipsets

Chipset

Intel W790

Memory

Number of Memory Slots

8x288pin (DDR5)

Memory Standard

Supports DDR5 ECC, buffered memory (RDIMM/ RDIMM-3DS/ RDIMM-9×4) up to 6800+(OC)*
1DPC Up to 6800+ MHz (OC), 4800 MHz Natively for Xeon W9, Xeon W7 and Xeon W5.
2DPC Up to 6000+ MHz (OC), 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
* Please refer to Memory Support List on ASRock’s website for more information. (https://www.asrock.com/)

Maximum Memory Supported

2TB

Channel Supported

Quad Channel

Expansion Slots

PCI Express 5.0 x16

4 x PCIe 5.0 x16 Slots (PCIE1/PCIE3 at x16; PCIE2/PCIE5 at x8)*
* Supports NVMe SSD as boot disks
– 15µ Gold Contact in VGA PCIe Slots

PCI Express 4.0 x16

1 x PCIe 4.0 x16 Slot (PCIE4), supports x4 mode*
* Supports NVMe SSD as boot disks

Other Slots

1 x U.2 Connector, supports PCIe Gen4x4 (64 Gb/s) mode

Storage Devices

SATA 6Gb/s

8 x SATA3 6.0 Gb/s Connectors

M.2

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*
* Supports Intel Volume Management Device (VMD)
* Supports NVMe SSD as boot disks

SATA 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*
* Requires additional M.2 NVMe expansion cards to support RAID 10

Onboard Audio

Audio Chipset

7.1 CH HD Audio (Realtek ALC897 Audio Codec)
Nahimic Audio

Audio Channels

7.1 Channels

Onboard LAN

LAN Chipset

2 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 I225LM)
– Support Wake-On-LAN
– Support PXE
– Supports Intel vPro Technology

Max LAN Speed

2 x 10Gbps + 2.5Gbps

Wireless LAN

802.11ax Wi-Fi 6E Module
– Supports IEEE 802.11a/b/g/n/ac/ax
– Supports Dual-Band 2×2 with extended 6GHz band* support
* Wi-Fi 6E (6GHz band) will be supported by Microsoft Windows 11.
The availability will depend on the different regulation status of each country and region.
It will be activated (for supported countries) through Windows Update and software updates once available.
* A 6GHz compatible router is required for 6E functionality.
– 1 antenna to support 2 (Transmit) x 2 (Receive) diversity technology
– Supports Bluetooth 5.3 + High speed class II
– Supports MU-MIMO

Bluetooth

Yes

Rear Panel Ports

Back I/O Ports

2 x Antenna Ports
1 x Optical SPDIF Out Port
2 x USB4 Thunderbolt 4 Type-C Ports*
2 x USB 3.2 Gen2 Type-A Ports (10 Gb/s)
4 x USB 3.2 Gen1 Ports
3 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)
* Supports USB PD 3.0 up to 9V@3A (27W) / 5V@3A (15W) charging

Internal I/O Connectors

Onboard USB

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)

Other Connectors

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 Front Panel Audio Connector
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.

Physical Spec

Form Factor

Extended ATX

Dimensions (W x L)

12.0″ x 10.9″

Power Pin

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)*****

**** 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.

Windows Compatibility

Windows 11

Supported

Features

Features

Superb Productivity
– PCIe Gen5 (Graphics, M.2)
– Quad Channel DDR5
– USB4 Thunderbolt 4 Type-C Ports
Rock-Solid Durability
– Ultra Low-Loss PCB
– 20+2 Power Phase, 90A SPS with Enlarged Heatsink Armor
– Flexible Integrated I/O Shield
– Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors)
Ultrafast Connectivity
– Dual Marvell (Aquantia) 10GbE LAN
– Intel 2.5GbE LAN
– Intel vPro for Workstations with Intel Advanced Management Technology
– 802.11ax Wi-Fi 6E Module
EZ Update
– BIOS Flashback Button
– ASRock Auto Driver Installer