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Silver 1U rackmount server chassis with four front 2.5-inch drive bays

ASRock Rack

ASRock Rack 1U4L4E-EGS/2T 1U barebone server

SKU CH-434Z-YXMJ4 MPN 1U4L4E-EGS/2T

A 1U rackmount barebone with four hot-swap 2.5-inch NVMe bays, dual 10GbE LAN and a single PCIe 5.0 x16 slot for fourth- or fifth-generation Xeon Scalable processors

  • Form Factor1U Rackmount
  • WorkloadGeneral Purpose Server
  • CPU Type4th/5th Gen Intel Xeon Scalable
  • CPU SocketLGA 4677
  • Installed CPUNo CPU Installed
  • Max Processors1
  • Supports 4th and 5th Gen Xeon Scalable processors
  • Eight DDR5 RDIMM slots scale to 256 GB per DIMM
  • Four hot-swap 2.5 inch NVMe bays run at PCIe 5.0 x4
  • Dual 10 GbE ports via Intel X550 controllers
  • Redundant 750 W Platinum power supplies included

Purpose-built barebone

The ASRock Rack 1U4L4E-EGS/2T is a 1U rackmount server barebone designed for general-purpose workloads. It accepts a single 4th or 5th Gen Intel Xeon Scalable processor in an LGA 4677 socket. No CPU or memory is installed, so integrators choose the exact core count and DDR5 capacity the job demands.

Build and connectivity

A 1+1 platinum 750 W redundant power supply feeds the chassis. Four hot-swap 2.5-inch bays support NVMe, SATA or SAS drives on a passive backplane, while four additional 3.5-inch bays take SATA drives. Expansion comes through one full-height half-length PCIe 5.0 x16 slot and a single M.2 2280 slot wired for PCIe 3.0 x4. Dual Intel X550-AT2 controllers provide two 10 GbE RJ45 ports, and an ASPEED AST2600 BMC delivers IPMI 2.0 with iKVM and vMedia.

Thermal and power behaviour

The 1U form factor relies on high-speed system fans to move air across the CPU, memory, storage and the PCIe add-in card. Fan speed ramps with inlet temperature and component load, so acoustic output rises under sustained compute or heavy I/O. Power draw tracks the chosen Xeon SKU and the number of populated drive bays; the redundant 750 W units share load and maintain operation if one module fails.

Highlights

  • Supports 4th and 5th Gen Xeon Scalable processors
  • Eight DDR5 RDIMM slots scale to 256 GB per DIMM
  • Four hot-swap 2.5 inch NVMe bays run at PCIe 5.0 x4
  • Dual 10 GbE ports via Intel X550 controllers
  • Redundant 750 W Platinum power supplies included

Specifications

BrandASRock Rack
Model1U4L4E-EGS/2T
Form Factor1U Rackmount
WorkloadGeneral Purpose Server
CPU Type4th/5th Gen Intel Xeon Scalable
CPU SocketLGA 4677
Installed CPUNo CPU Installed
Max Processors1
North BridgeIntel C741
Memory Slots8 x 288Pin
Installed Memory SizeNo Memory Installed
Max Memory SupportedMax. Capacity per DIMM
- RDIMM: 96GB
- RDIMM-3DS: 256GB
Memory Type Supported5600 MT/s on 5th Gen Intel Xeon Scalable Processors
4800 MT/s on 4th Gen Intel Xeon Scalable Processors
*Memory speed and capacity support varies by CPU SKU
Installed HDDNo Storage Installed
Serial ATA4-ports NVMe/SATA/SAS* passive backplane, 4-ports SATA passive backplane
M.21 x M-key (PCIe3.0 x4); support 2280 form factor
GPU/VPUASPEED AST2600: IPMI2.0 with iKVM and vMedia support
PCI Express1 FHHL PCIe5.0 x16 via RB1UX16R_G5 (SLOT7 close to CPU)
First LANIntel X550-AT2
Second LANIntel X550-AT2
Max. LAN Speed10 Gigabit
Hot-Swap Bays4 Hot-swap 2.5" NVMe (PCIe5.0 x4)/SATA/SAS* drive bays
4 Hot-swap 3.5" SATA drive bays
*SAS drive is only supported with additional RAID/HBA cards
Front USB2 x USB 2.0
VGA1 x DB15 (VGA)
Rear USB2 x USB 3.2 Gen1 Type-A
RJ452 x RJ45 (10GbE)
Max. Power1+1 Slim PSU, 750W, 80-PLUS Platinum, 100-240V, 60/50Hz
TemperatureOperation temperature: 10°C ~ 35°C / Non operation temperature: -40°C ~ 70°C
HumidityNon operation humidity: 20% ~ 90% ( Non condensing)
Dimensions1.7" x 26.6" x 17.2"
Shipping weight22.50 kg
Package size970 × 640 × 220 mm

Questions about this item

What PCIe generation does the single FHHL expansion slot use, and what bandwidth ceiling does that impose?

The slot is PCIe 5.0 x16, so the practical ceiling is the 5.0 signalling rate across sixteen lanes.

What drive form factors and bay counts does the chassis accept?

Four hot-swap 2.5-inch bays for NVMe, SATA or SAS drives and four hot-swap 3.5-inch bays for SATA drives.

How is the IPMI remote-management module installed, and what step is commonly missed?

The ASPEED AST2600 BMC is soldered on the motherboard; the step often missed is connecting the dedicated management LAN port before first boot.

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