ASRock MB Sc LGA4677 W790 WS, Intel W790, 8xDDR5, WiFi, eATX

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
- Supports ASRock Hyper BCLK Engine

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), 4800 MHz Natively for Xeon® W9, Xeon® W7 and Xeon® W5.
2DPC Up to 6200+ 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

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

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

Wireless LAN

- 802.11ax Wi-Fi 6E Module
- Supports IEEE 802.11a/b/g/n/ac/ax
- Supports Dual-Band 2x2 with extended 6GHz band support*
- 1 antenna to support 2 (Transmit) x 2 (Receive) diversity technology
- Supports Bluetooth 5.3 + High speed class II
- Supports MU-MIMO

*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.

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*
- 1 x Vertical M.2 Socket (Key E), supports type 2230 WiFi/BT PCIe WiFi module

- 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

- 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

- 2 x Thunderbolt™ 4 Type-C (Rear)
- 1 x USB 3.2 Gen2x2 Type-C (Front)
- 2 x USB 3.2 Gen2 Type-A (Rear)
- 8 x USB 3.2 Gen1 (4 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

- 2 x Antenna Ports
- 1 x Optical SPDIF Out Port
- 2 x 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

Software and UEFI

Software
- ASRock Motherboard Utility (A-Tuning)
- ASRock XFast LAN
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.

Unique Feature

Superb Productivity
- PCIe Gen5 (Graphics, M.2)
- Quad Channel DDR5
- USB4 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

Certifications

- FCC, CE
- ErP/EuP ready (ErP/EuP ready power supply is required)
- CEC Tier II ready

Operating System

- Microsoft® Windows® 10 64-bit / 11 64-bit
- Linux*

Accessories

- 1 x User Manual
- 4 x SATA Data Cables
- 1 x ASRock WiFi 2.4/5/6 GHz Antenna
- 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: 30.5 cm x 27.7cm
- 14 Layer PCB