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Rectangular server motherboard with dark PCB, eight DDR5 slots, seven full-length PCIe slots, dual 10G LAN ports

ASRock

ASRock WRX90 WS EVO server motherboard

SKU CH-KJKN-KDKY2 MPN WRX90 WS EVO

Socket sTR5 workstation board with eight-channel DDR5 ECC memory up to 2 TB, seven PCIe 5.0 x16 slots, dual 10 GbE LAN, IPMI and multiple M.2 NVMe connectors

  • ProcessorSupports AMD Ryzen Threadripper PRO 9000/7000 WX-Series Proc
  • Form factorEEB
  • CPU socketSocket sTR5
  • ChipsetAMD WRX90
  • RAM slots8 x DDR5 288-pin
  • Supported memoryDDR5 7600 (OC)
  • Supports AMD Ryzen Threadripper PRO 9000/7000 WX-Series processors
  • 18+3+3 power phase design with 110A SPS for VCore
  • Eight-channel DDR5 ECC registered memory up to 7600 MT/s and 2 TB capacity
  • Seven PCIe 5.0 x16 slots with 15 µm gold contacts
  • Dual Intel 10 Gigabit LAN plus dedicated IPMI management port

Socket sTR5 workstation board

The ASRock WRX90 WS EVO is a server motherboard built around the AMD WRX90 chipset for Socket sTR5 processors. It accepts AMD Ryzen Threadripper PRO 9000 and 7000 WX-Series CPUs and provides eight DDR5 DIMM slots with eight-channel architecture. Registered ECC memory up to 2 TB is supported.

For multi-GPU compute, not compact builds

This board suits users who need seven PCIe 5.0 x16 slots for accelerators, dual 10 GbE networking and extensive NVMe or SAS storage. Builders requiring a smaller form factor, consumer-grade audio or integrated Wi-Fi should look elsewhere.

Eight-channel DDR5 Registered ECC

The defining specification is the eight-channel DDR5 controller with support for Registered ECC modules up to 7600 MT/s OC. If your workload demands maximum memory bandwidth and capacity with error correction, this platform delivers; otherwise a dual-channel desktop board will suffice.

How it compares

Measured against everything we stock in Server & Workstation Boards, at today’s prices. Recalculated every night.

Price $818.99
Pricier than about 91% of the 776 comparable items (median $254.49).

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Specifications

Product
Brand nameASRock
Model nameWRX90 WS EVO
Processor
ProcessorSupports AMD Ryzen Threadripper PRO 9000/7000 WX-Series Processors
CPU socketSocket sTR5
ChipsetAMD WRX90
Memory
RAM slots8 x DDR5 288-pin
Supported memoryDDR5 7600 (OC)
Max supported RAM2 TB
Memory channelsEight Channel
ECC supportYes
Storage
SATA ports4 x SATA 6.0Gb/s
M.2 slotsCPU:
- 1 x Blazing M.2 Socket (M2_1, Key M), supports type 2260/2280/22110 PCIe Gen5 × 4 (128 Gb/s) mode*
- 2 x MCIO Connectors (PCIe Gen5 × 4 or 4 x SATA3 6.0 Gb/s)
- 1 x SlimSAS SFF-8654 Connector (SLIM1) (PCIe Gen4 × 4 or 4 x SATA3 6.0 Gb/s)
Chipset:
- 1 x Hyper M.2 Socket (M2_2, Key M), supports type 2260/2280 PCIe Gen4 × 4 (64 Gb/s) mode*
- 1 x SlimSAS SFF-8654 Connector (SLIM2) (PCIe Gen4 × 4)
- 4 x SATA3 6.0 Gb/s Connectors
*Supports NVMe SSD as boot disks
Connectivity
Ethernet controllerIntel X710-AT2
Maximum network speed2 × 10 Gigabit LAN 100/1000/2500/5000/10000 Mb/s
- Support PXE
1 x Dedicated IPMI (Realtek RTL8211F)
Ports & slots
PCIe 5.0 x16 slotsCPU:
- 7 x PCIe 5.0 x16 Slots (PCIE1/PCIE2/PCIE3/PCIE4/PCIE5/PCIE7 at x16; PCIE6 at x8)*
- 15µ Gold Contact in VGA PCIe Slots
*Supports NVMe SSD as boot disks
Rear panel ports1 x DisplayPort 1.1a
1 x Optical SPDIF Out Port
2 x USB4 Type-C Ports (40 Gb/s)*
4 x USB 3.2 Gen2 Type-A Ports (10 Gb/s)
2 x USB 3.2 Gen1 Type-A Ports
2 x RJ-45 LAN Ports
1 x RJ45 Dedicated IPMI LAN Port
1 x Line Out Jack (Gold Audio Jack)
1 x Microphone Input Jack (Gold Audio Jack)
*USB_TC1 supports USB PD 3.0 up to 9 V@3A (27 W) / 5 V@3A (15 W) charging; USB_TC2 supports USB PD 3.0 up to 5 V@3A (15 W) charging.
Onboard USB headers2 x USB 2.0 Headers (Support 4 USB 2.0 ports)
1 x USB 3.2 Gen1 Header (Supports 2 USB 3.2 Gen1 ports)
1 x Front Panel Type C USB 3.2 Gen2 × 2 Header (20 Gb/s)
Size & build
Form factorEEB
Width and length12.0 in × 13.0 in
Shipping weight3.08 kg
Package size387 × 372 × 95 mm
More details
Registered statusYes
SAS1 x SlimSAS SFF-8654 Connector (SLIM2) (PCIe Gen4 × 4)

Questions about this item

How do I decide between the seven PCIe 5.0 x16 slots when one runs at x8?

Use the six full x16 slots for GPUs or high-bandwidth add-in cards; the x8 slot still provides Gen5 bandwidth for NVMe adapters or secondary devices.

What does the DDR5 7600 (OC) rating mean once modules are installed?

The board supports eight-channel DDR5 ECC Registered memory up to 2 TB; 7600 MT/s is the validated overclock ceiling, actual speed depends on the CPU and DIMM combination.

What real throughput does the dual 10 Gigabit LAN deliver?

The Intel X710-AT2 controller provides two RJ-45 ports at 100/1000/2500/5000/10000 Mb/s with PXE support for network boot.

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