Scan code: LN136019 Manufacturer code: 90-MXBJC0-A0UAYZ

ASRock Intel W790 WS E-ATX Motherboard

ASRock W790 WS, Intel W790, S 4677, DDR5, SATA3, PCIe 5.0, 4x M.2, 10GbE, USB 4, E-ATX

Thumbnail 1 : ASRock Intel W790 WS E-ATX Motherboard Thumbnail 2 : ASRock Intel W790 WS E-ATX Motherboard Thumbnail 3 : ASRock Intel W790 WS E-ATX Motherboard Thumbnail 4 : ASRock Intel W790 WS E-ATX Motherboard
Scan code: LN136019 Manufacturer code: 90-MXBJC0-A0UAYZ
Order now and get it tomorrow, Mon 15th Apr
Get it Tomorrow, 15 AprIn stock
From £31.17 / month (APR 16.9%) or 0% for 4 months
Monthly Payment: £80.63
Instalment Rate: 16.9% p.a. (fixed)
Cost of purchase: £889.99
Total inc. interest: £967.57
Monthly Payment: £43.46
Instalment Rate: 16.9% p.a. (fixed)
Cost of purchase: £889.99
Total inc. interest: £1,042.94
Monthly Payment: £31.17
Instalment Rate: 16.9% p.a. (fixed)
Cost of purchase: £889.99
Total inc. interest: £1,121.89
Minimum Spend: £99
Instalment Rate: N/A
Cost of purchase: £99
Total inc. interest: £99
If you are approved for a credit limit with PayPal Credit and use it for future purchases, the APR for those purchases won't be more than 23.9% and may be even lower.

Representative Example:

Purchase Rate: 23.9% p.a. (variable)

Representative: 23.9% APR (variable)

Assumed Credit Limit: £1,200

Subject to status. Terms and Conditions apply.
With a 10% deposit from just £23.65 / month (APR 19.9%)
Delivery Options
  • By DPD On 15th Apr to your specified address. | £11.50 Receive SMS with one-hour delivery window Weekend, timed and European delivery options are available at checkout

    Have your parcel delivered by DPD to your specified address. Receive SMS with one-hour delivery window

    Weekend, timed and European delivery options are available at checkout
  • Collect instore Collect from our Bolton store, BL6 6PE | Free

    Order online, collect from our Bolton store (25-28 Enterprise Park, Middlebrook, Horwich, Bolton, BL6 6PE)

  • SCANPROTECT Protect against installation damage for 28 days. More info

    ScanProtect is an enhanced warranty specifically designed and offered by Scan to reduce the risk of any mishap or damage to components during installation.

    Our aim with ScanProtect is to encourage our customers to upgrade or build their own PC confidently. For a small additional fee our customers are provided with complete peace of mind.

Product Overview

Dependable and Versatile Workstations Motherboard

Designed to deliver powerful performance, manageability and reliability for high speed computing workstations.

SPS (Smart Power Stage)

Dr.MOS design features the latest SPS (Smart Power Stage) technology. It’s optimised for monitoring current and temperature of each phase, thus delivering smoother and neater power to the CPU with enhanced performance and OC capability.

20+2 Power Phase Design

Featuring sturdy components and completely smooth power delivery to the CPU. Plus, it offers unmatched overclocking capabilities and enhanced performance with the lowest temperature for advanced gamers as well.

14 Layer PCB

The 14 Layer PCB provides stable signal traces and power shapes delivering lower temperature and higher energy efficiency for memory overclocking! Thus, it's able to support the latest memory modules with most extreme memory performance!

Composite VRM Heatsink

The advanced cooling system of the composite VRM heatsink provides efficient heat dissipation, which means users can enjoy high-performance computing without having to worry about thermal issues. The triple EBR cooling fans, XXL aluminium-alloy heatsink, aluminium fin array, and heat pipe work together to maintain optimal temperature levels for the system, ensuring smooth and stable operation even under heavy workloads.

Server-Grade Ultra Low-Loss PCB

The server grade PCB prevents PCB bending and improves signal integrity, giving higher PCIe 5.0 and memory performance as well as system stability, giving a reliable and long-lasting system without any compromise.

Digi Power

Unlike traditional motherboards that use analog power, this motherboard uses a next generation digital PWM (Pulse-Width Modulation) design, which provides CPU Vcore voltage more efficiently and smoothly, so that the stability and lifespan of the motherboard is greatly enhanced.

DDR5 ECC Memory Support

ASRock W790 WS supports 8 DIMMs Quad-Channel DDR5 RDIMM ECC Memory overclocking with max capacity of 2048GB and is able to automatically detected and corrected data corruption, reducing the chance of system crashes to ensure workstation stability with multiple memory modules.

PCIe 5.0 + Surface-Mount Tech

Compares to conventional DIP style PCIe slot, the SMT type PCIe slot improves signal flow and maximise stability under high speed, a key breakthrough to fully support the lighting speed of the latest PCIe 5.0 standard.
The latest PCI Express 5.0 is capable to perform a breathtaking bandwidth of 128GBps, ready to unleash the full potential of future high-end graphic cards.

4 x PCIe Gen5 x16

With 4th Gen Intel® Xeon® Sapphire Rapids Series Processors, ASRock W790 WS supports 4 PCIe Gen5 x16 slots, deliver all the performance of PCIe Gen5 to your GPU and add-on cards. Fulfil all the professional design, deep learning, simulation and rendering applications.

Enhanced USB4 Type-C

USB4 technology brings speed and versatility to the most advanced USB Type-C, offering a fast and simple level of connection for work or home. It enables lightning-fast data transfer up to 40Gbps and supports up to 9V@3A 27W with the next generation PD 3.0 for superfast charging!

Fast Charging Technology

Enjoy the superfast charging rate, up to 9V@3A 27W with the next generation PD 3.0!

Various Storage Interface Selection

Provides multiple interface for storage devices including mini-SAS HDD connector, SATA3, and M.2 Key-M slot that can support PCIe Gen5 x4 M.2 SSD.

PCIe Gen5 Blazing M.2

The Blazing M.2 accommodates the latest PCI Express 5.0 standard to perform twice the bandwidth compared to previous generation, with a breathtaking 128Gb/s transfer speed, it is ready to unleash the full potential of future ultrafast SSDs.

Dual AQUANTIA® / Marvell 10GbE LAN

Equipped with dual Marvell (Aquantia) 10GbE controller. The new 10Gb/s network standard was specially designed to satisfy the user who is seeking immediate performance improvements. It offers blazingly fast 10-gigabit/sec transfer speed over Cat6 cable. The 10Gb/s Ethernet not only fully compatible with 5Gb/s, 2.5Gb/s & Gigabit Lan but also delivers lightning fast transfer speed, perfect for media centre, workstation and gaming PC.

Supports Intel® vPro Technology

The Intel® Ethernet Controller I225LM is designed for use on any mobile, desktop, workstation, value-server, or industrial designs that have critical space constraints. Featuring 2.5Gb/s Ethernet and supports Intel® Active Management Technology on systems enabled with Intel® vPro® technology.

Wi-Fi 6E 802.11ax

WiFi 6E technology has extended to the whole new 6GHz spectrum band, providing more WiFi capability and giving an even better and faster internet traffic. In addition to deliver higher speeds, the WiFi 6E also enhances the lower latency and supports service levels that are equivalent to 5G networks.

Front USB 3.2 Gen2x2 Type-C

The latest USB 3.2 Gen2x2 Type-C delivers up to 20 Gbps data transfer rate which is 2x as fast as previous generation, providing a blazing fast data transfer interface with reversible USB Type-C design that fits the connector either way.

Auto Driver Installer

Optical drive or driver DVD is no longer needed! ASRock motherboard already has its Ethernet driver prepacked in BIOS ROM, once finish installing the operation system, simply follow the instructions and allow ADI to download and install all necessary drivers automatically!

BIOS Flashback

Get the most convenient BIOS flashing with just a simple click. Users can easily achieve the latest BIOS support with a USB and power supply, No CPU, RAM or other components required.

Flexible Integrated IO Shield

Unlike most so called pre-mounted I/O shield that is only decorated with fancy colour schemes. We reserve more tolerance space and allow IO shield is adjustable when installing, thus fitting chassis perfectly without any mechanical issue.


• 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.
• Supports DDR5 ECC, buffered memory up to 6800+(OC).
• 4 PCIe 5.0 x16, 1 PCIe 4.0 x16.
• 4 Blazing M.2 (PCIe Gen5 x4), 1 U.2 mini SAS Connector (PCIe Gen4 x4), 8 SATA3.
• 2 USB4 Type-C.
• 1 USB 3.2 Gen2x2 Type-C (Front).
• 2 USB 3.2 Gen2 (Rear).
• 8 USB 3.2 Gen1 (4 Rear, 4 Front).
• 7.1 CH HD Audio (Realtek ALC897 Audio Codec).
• Dual Marvell AQUANTIA® 10 GbE LAN.
• Intel® i225LM 2.5 GbE LAN.
• 802.11ax WiFi 6E + Bluetooth 5.3.
• Supports ASRock Blazing Quad M.2 Card.

Core Specifications
Edition W790 WS
Form Factor E-ATX
CPU Socket 4677
Chipset Intel W790
RAM Memory Support
Memory Type DDR5
Memory Channel Dual (2)
Memory Type (ECC) ECC
Memory Type (R/U) RDIMM (Registered)
Memory Speed (Mhz) DDR5 - 6800(OC)
Max. Memory Capacity 2TB
Audio 7.1 Channel HD Audio
Graphics Support
Primary GPU Interface PCIe 5.0 (x16)
AMD CrossFire Support N/A
Integrated Graphics Discrete GPU Required for Graphics Output
On-Board Graphics Connectors None
Internal Connectivity
Expansion Slots
  • 1 x M.2, 22-30 (Supports WiFi/Bluetooth Cards)
  • 1 x M.2, 22-30/42/60/80, PCIe/SATA
  • 3 x M.2, 22-60/80, PCIe Gen5x4
  • 1 x PCIe 4.0 x16
  • 4 x PCIe 5.0 x16
  • 8 x SATA 6GB/s
SATA Support SATA3
RAID Support via  
Storage Mode Support
  • RAID 0
  • RAID 1
  • RAID 10
  • RAID 5
Internal I/O
  • 1 x 24-pin (Power)
  • 1 x 6-pin (Power)
  • 2 x 8-pin (Power)
  • 2 x 8-pin PCIe (Power)
  • 1 x Chassis Intrusion/Speaker Header
  • 3 x Chassis Water Pump/Fan Connector
  • 1 x Clear CMOS Button
  • 1 x CPU Fan Connector
  • 1 x CPU Water Pump/Fan Connector
  • 1 x Dr. Debug with LED
  • 1 x Front Panel Audio Header
  • 1 x Power Button with LED
  • 1 x Reset Button with LED
  • 1 x TPM (SPI_TPM) header
  • 2 x USB 2.0 Header
  • 2 x USB 3.2 Gen1 Header
  • 1 x USB 3.2 Gen2x2 Connector
External Connectivity
Network Interface Type
  • 802.11ax Wi-Fi 6E LAN
  • Dual Wired 10G LAN
  • Wired 2.5 Gigabit LAN
Network Chip/Modules  
Rear I/O Connectors
  • 2 x Antenna Ports
  • 1 x BIOS Flashback Button
  • 1 x Line Out
  • 1 x Mic-In
  • 3 x RJ-45
  • 1 x S/PDIF-Out (Optical)
  • 4 x USB 3.2 Gen1 Type-A
  • 2 x USB 3.2 Gen2 Type-A
  • 2 x USB 4.0 Type-C
Additional Specifications
Water Cooled No
QPI Speed N/A
Board Dimensions 305 x 277 mm
Additional Information
Scan Code LN136019
Model Number 90-MXBJC0-A0UAYZ

Please note your statutory rights are not affected.

For further information regarding Scan's warranty procedure please see our terms and conditions

36 months
Return to base
DOA Period:
28 days
RTB Period:
36 months
Manufacturer Contact Details
0871 472 4747
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ASRock Intel W790 WS E-ATX Motherboard
ASRock Intel W790 WS E-ATX Motherboard