ASRock W790 WS R2.0 LGA 4677 Intel W790 E-ATX Motherboard

• PCIe Gen5 (Graphics, M.2)
• Quad Channel DDR5

• Ultra Low-Loss PCB
• 20+2 Power Phase, 90A SPS
• Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors)

• Marvell (Aquantia) 10GbE LAN
• Intel® 2.5GbE LAN
• Intel® vPro for Workstations with Intel® Advanced Management Technology

• BIOS Flashback Button
• ASRock Auto Driver Installer

• 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

• Intel® W790
• Supports Intel® vPro Technology
• Supports Intel® Active Management Technology

• 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

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

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

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

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

• 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

• 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.

• 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

• 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.

• 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

• EATX Form Factor: 12.0-in x 10.9-in, 30.5 cm x 27.7cm
• 14 Layer PCB

• 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

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