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Silver 1U rackmount server chassis with twelve front drive bays and redundant power supplies

ASRock Rack

ASRock Rack 1U12XL-C622 RPSU 1U barebone server redundant PSU

SKU CH-RA4Z-8PPET MPN 1U12XL-C622 RPSU

1U rackmount barebone with dual LGA 3647 sockets, 16 DDR4 slots, 14 SATA3 ports and 700 W redundant PSU

  • Form Factor1U Rackmount
  • CPU TypeIntel Xeon
  • CPU SocketLGA 3647
  • Max Processors2
  • North BridgeIntel C622
  • Memory Slots16 x 288Pin
  • 1U rackmount with 700W redundant PSU for continuous uptime
  • Dual Xeon Scalable support on LGA 3647 sockets
  • 16 DDR4 slots up to 1TB RDIMM/LR DIMM
  • 14 SATA3 ports plus two M.2 from PCH
  • Integrated IPMI 2.0 with dedicated RTL8211E LAN

Purpose-built 1U server barebone

The ASRock Rack 1U12XL-C622 RPSU is a 1U rackmount barebone designed for dual Intel Xeon processors on LGA 3647 sockets. It targets builders who need a dense, redundant platform for storage-heavy workloads. The Intel C622 chipset drives six-channel DDR4 memory across sixteen 288-pin slots. No memory, drives or CPUs are included.

Installation notes and common pitfalls

The chassis supports twelve 3.5-inch or 2.5-inch hot-swap bays plus two additional 2.5-inch bays, all served by a 700W redundant PSU. Power connections require one 24-pin and two 8-pin ATX cables. Six 6-pin system fan headers must be populated for proper airflow. Builders often forget the dedicated IPMI LAN port for remote management or leave the TPM and IPMB headers unconnected.

Compatibility checklist before ordering

Verify that your chosen Xeon Scalable CPUs match the LGA 3647 socket and C622 chipset. Confirm DDR4 RDIMM or LR DIMM modules rated for 2666, 2400 or 2133 MT/s to reach the 1TB maximum. Ensure storage drives are SAS or SATA; the fourteen SATA3 ports include twelve via three mini SAS connectors, two direct SATA connectors and two M.2 ports from the PCH. Expansion is limited to two PCI Express x8 slots.

Highlights

  • 1U rackmount with 700W redundant PSU for continuous uptime
  • Dual Xeon Scalable support on LGA 3647 sockets
  • 16 DDR4 slots up to 1TB RDIMM/LR DIMM
  • 14 SATA3 ports plus two M.2 from PCH
  • Integrated IPMI 2.0 with dedicated RTL8211E LAN

Specifications

BrandASRock Rack
Model1U12XL-C622 RPSU
Form Factor1U Rackmount
CPU TypeIntel Xeon
CPU SocketLGA 3647
Max Processors2
North BridgeIntel C622
Memory Slots16 x 288Pin
Installed Memory SizeNo Memory Installed
Max Memory Supported1TB
Memory Type SupportedDDR4 2666/2400/2133 R DIMM/LR DIMM
Serial ATA14 x SATA3 6.0 Gb/s (12 from 3 x mini SAS connector + 2 x SATA connector +2 x M.2 ports from PCH)
Video MemoryASPEED AST2500
PCI Express2x PCI Express x8
First LAN1 x Realtek RTL8211E for dedicated management LAN
Rear USB2 x USB 3.2 Gen1
RJ451 x RJ45 Dedicated IPMI LAN port
LAN Ports with LED (ACT/LINK LED and SPEED LED), dedicate for IPMI
Other PortsInternal Connector
COM Header: 1
Auxiliary Panel Header: 1 (include chassis intrusion, location button & LED, front LAN LED)
TPM Header: 1
IPMB Header: 1
VGA Header: 1
Fan Header: 6 x System Fans (6-pin)
ATX Power: 1x (24-pin) + 2x (8-pin)
NMI Button: 1
Front Panel: 1
Dimensions1.70" x 33.90" x 17.20"
Shipping weight25.70 kg
Package size1046 × 620 × 194 mm

Questions about this item

How do I confirm the redundant PSU is active after installing both power cords?

The rear panel provides ACT/LINK and SPEED LEDs on the dedicated IPMI LAN port, plus the ASPEED AST2500 KVM over IPMI 2.0 gives remote power-status read-outs so you can verify both 700W supplies are online without opening the chassis.

Which drive trays and cabling come with the barebone and what must I add?

The 1U chassis includes twelve 3.5 or 2.5 hot-swap bays wired to three mini-SAS connectors and two additional 2.5 bays on two SATA connectors, plus two M.2 ports from the PCH; you supply the drives, DDR4 RDIMM or LR DIMM modules, and LGA 3647 Xeon processors.

Which DDR4 speed should I pick for a dual-socket build?

The Intel C622 chipset runs six channels per socket at 2666, 2400 or 2133 MT/s; populate all sixteen 288-pin slots with matched RDIMM or LR DIMM kits at the highest speed your chosen Xeon Scalable processors support to reach the 1 TB maximum.

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