The ASRock Rack ALTRAD8UD-1L2T is a Deep Micro-ATX server motherboard for one Ampere Altra or Altra Max processor, with eight DDR4 RDIMM/LRDIMM slots supporting up to 2TB of memory. It suits server builders needing a compact platform for memory-intensive workloads and remote management.
Recommended For
- Linux and infrastructure developers who want a local ARM64 server for building, testing, or validating software on Ampere Altra or Altra Max hardware.
- Homelab builders planning an ARM64 Linux server for services such as file storage, home automation, media serving, and Linux VMs—provided their chosen software supports ARM64.
- Server builders who need onboard 10GbE, IPMI remote management, and multiple PCIe-connected storage or expansion devices in a compact server-board layout.
- Experienced homelab users who want to experiment with ARM-based NAS or server builds and are comfortable selecting compatible cases, cooling, memory, and software.
Spec Summary
| Attribute | Value |
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| Best For | Single-socket server builds using Ampere Altra or Ampere Altra Max processors, with support for registered DDR4 memory and high-speed network and expansion connectivity |
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| Processor And Socket | Supports one Ampere Altra or Ampere Altra Max processor in an LGA 4926 socket |
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| Memory Configuration | Eight 288-pin DDR4 DIMM slots, supporting DDR4-3200 registered memory and up to 2TB |
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| Expansion Slots And Connectivity | Four PCIe 4.0 x16 slots; with Ampere Altra processors, the listed slots support PCIe 4.0 x8. SLOT4 does not support full-length cards. Also includes four SlimSAS PCIe 4.0 x8 connections and two OCuLink PCIe 4.0 x4 connections |
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| Storage Connectivity | Two M-key M.2 PCIe 4.0 x4 sockets supporting 2230 and 2280 drives |
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| Wired Networking | Two Intel X550 10GbE RJ45 ports and one Intel I210 Gigabit Ethernet RJ45 port |
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| Rear I/O And USB | Rear I/O includes one D-Sub video output, three RJ45 ports, and four USB 3.2 Gen 1 Type-A ports; an onboard header provides two additional USB 3.2 Gen 1 ports |
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| Video And Management | Aspeed AST2500 onboard video chipset and IPMI management support |
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| Power And Board Design | Deep Micro-ATX board measuring 9.6 × 10.5 inches; supports an ATX power supply or 12V DC input through three 8-pin ATX 12V connectors, with a 4-pin ATX PSU signal connector and 24-pin adapter cable |
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| Internal Headers And Connectors | Includes system and auxiliary panel headers, COM and VGA headers, speaker and fan headers, thermal sensor, SPI TPM, SMBus, PMBus, IPMB, front LAN LED, and Clear CMOS contact pads |
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| BIOS And Firmware | AMI UEFI BIOS with 256 Mb (32 MB) SPI Flash ROM; supports ASRock Rack Instant Flash, ACPI 6.2, SMBIOS 3.4.0 and above, and Plug and Play |
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| Model Identifier | ASRock Rack ALTRAD8UD-1L2T |
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