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ASRock W790 WS R2.0 LGA 4677 Intel W790 Extended ATX Motherboard
- 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
- 8 x DDR5 DIMMs
- Supports Quad Channel ECC Registered memory, up to 6800+ (OC)
- 4 PCIe 5.0 x16, 1 PCIe 4.0 x16
- 4 Blazing M.2 (PCIe Gen5 x4), 8 SATA3
- 1 U.2 mini SAS Connector (PCIe Gen4 x4)
- 1 USB 3.2 Gen2x2 Type-C (Front)
- 2 USB 3.2 Gen2 (Rear)
- 7 USB 3.2 Gen1 (3 Rear, 4 Front)
- 7.1 CH HD Audio (Realtek ALC897 Audio Codec)
- Marvell AQUANTIA 10 GbE LAN
- Intel i226LM 2.5 GbE LAN
- Supports ASRock Blazing Quad M.2 Card
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Specs
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Learn more about the ASRock W790 WS R2.0
| Brand | ASRock |
|---|---|
| Model | W790 WS R2.0 |
| CPU Socket Type | LGA 4677 |
|---|---|
| CPU Type | Supports 4th Gen Intel Xeon W-3400 and W-2400 Processors (LGA4677) |
| Chipset | Intel W790 |
|---|
| Number of Memory Slots | 8x288pin (DDR5) |
|---|---|
| Memory Standard | 6800+(OC) |
| Maximum Memory Supported | 2TB |
| Channel Supported | Quad Channel |
| Memory Feature | Quad Channel DDR5 Memory Technology 8 x DDR5 DIMM Slots* Supports DDR5 ECC, buffered memory (RDIMM/ RDIMM-3DS/ RDIMM-9x4) up to 6800+(OC)** *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 |
| 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 |
|---|---|
| PCI Express 4.0 x16 | 1 x PCIe 4.0 x16 Slot (PCIE4), supports x4 mode* |
| Other Slots | 15µ Gold Contact in VGA PCIe Slots |
| Serial ATA (SATA) | 8 x SATA 6Gb/s |
|---|---|
| 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 | Realtek ALC897 |
|---|---|
| Audio Channels | 7.1 Channels |
| LAN Chipset | Marvell (Aquantia) AQC113CS |
|---|---|
| Second LAN Chipset | Intel I226LM |
| Max LAN Speed | 10Gbps + 2.5Gbps |
| Back I/O Ports | 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) |
|---|
| 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 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. |
| 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. |
| Features | Superb Productivity - PCIe Gen5 (Graphics, M.2) - Quad Channel DDR5 Rock-Solid Durability - Ultra Low-Loss PCB - 20+2 Power Phase, 90A SPS - Nichicon 12K Black Caps (100% Japan made high quality conductive polymer capacitors) Ultrafast Connectivity - Marvell (Aquantia) 10GbE LAN - Intel 2.5GbE LAN - Intel vPro for Workstations with Intel Advanced Management Technology EZ Update - BIOS Flashback Button - ASRock Auto Driver Installer |
|---|
| Package Contents | 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 |
|---|
| First Listed on Newegg | June 11, 2025 |
|---|
Warranty & Returns
Warranty, Returns, And Additional Information
Return Policies*
- Return for refund within: 30 days
- Return for replacement within: non-replaceable
- This item is covered by BTE Outlet Return Policy
- *Subject to applicable law
Warranty Notice:
This product does not include manufacturer warranty when purchased or used outside of its designated sales region. By purchasing internationally, you acknowledge that warranty support from the manufacturer will not be available.
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