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ASRock W790 WS Intel® W790 (LGA 4677) CEB workstation Extended ATX Motherboard 4 PCIe 5.0 x16, Dual Marvell AQUANTIA® 10 GbE and Intel® i225LM 2.5 GbE LAN, 2 USB4 Thunderbolt™ 4 Type-C
- Supports 4th Gen Intel® Xeon® W 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 Thunderbolt™ 4 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
- *Actual support may vary by CPU
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Specs
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Learn more about the ASRock W790 WS
| Brand | ASRock |
|---|---|
| Model | W790 WS |
| 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 |
| Chipset | Intel W790 |
|---|
| Number of Memory Slots | 8x288pin (DDR5) |
|---|---|
| Memory Standard | Supports DDR5 ECC, buffered memory (RDIMM/ RDIMM-3DS/ RDIMM-9x4) 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. (http://www.asrock.com/) |
| Maximum Memory Supported | 2TB |
| Channel Supported | Quad Channel |
| 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 |
| Serial ATA (SATA) | 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 |
| Audio Chipset | 7.1 CH HD Audio (Realtek ALC897 Audio Codec) Nahimic Audio |
|---|---|
| Audio Channels | 7.1 Channels |
| 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 2x2 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 |
| 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 |
|---|
| 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. |
| Windows 11 | Supported |
|---|
| 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. |
| 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 |
|---|
| Package Contents | 1 x User Manual 4 x SATA Data Cables 1 x ASRock WiFi 2.4/5/6 GHz Antenna 4 x Screws for M.2 Sockets 2 x Standoffs for M.2 Sockets |
|---|
| Date First Available | April 15, 2025 |
|---|
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