ASRock Rack used Computex 2026 to show an early server based on Arm’s AGI CPU, the chip that moves Arm from licensing cores and architecture into selling its own server silicon. For data center buyers, that matters because Arm is no longer only the company behind other vendors’ CPUs. With AGI, Arm is trying to take a direct slice of a server market that its instruction set has helped grow.
ServeTheHome reported that ASRock Rack had the 1U4E1S-ARM on display at its booth. The system is a 1U, single-socket server built around Arm’s AGI processor and ASRock Rack’s ARMD12M3 motherboard. ASRock Rack had already announced a larger 2OU dual-node 2OU2N-ARM design alongside Arm’s March AGI announcement, with each node using that same motherboard.
Arm has said AGI is due for volume production later in 2026. Meta is Arm’s first announced major direct customer for the chip, while ASRock Rack is among the launch supporters building systems around it.
What is inside the 1U system
The AGI chip shown in the ASRock Rack server is built on TSMC’s 3nm process and contains 136 Arm Neoverse V3 cores, according to ServeTheHome. Arm’s stated top clock target for the fastest model is 3.7GHz, with a base TDP of 300W. That puts the design closer to dense core-count deployments than low-core-count, high-frequency server parts.
The memory subsystem is also aimed at feeding a lot of cores. AGI supports 12 channels of DDR5 memory at up to DDR5-8800. In ASRock Rack’s implementation, the board uses one DIMM per channel, split across both sides of the CPU. That is the boring-looking part of the design that matters: routing 12 fast memory channels cleanly on a server board is where product flyers go to meet physics.
I/O is the other hard part. AGI supports 96 lanes of PCIe 6.0, with CXL 3.0 available over that interface. ServeTheHome reported that ASRock Rack’s 1U4E1S-ARM exposes about 80 lanes across drive bays and expansion slots.
- One full-height, full-length PCIe 6.0 x16 slot
- One half-height, half-length PCIe 6.0 slot running x16 or x8
- One OCP NIC 3.0 slot fed by 16 lanes
- Four front hot-swap E1.S bays, each wired for PCIe 5.0 x4
- Two internal M.2 slots near the rear of the system
- Two redundant 800W 80 Plus Titanium power supplies
ServeTheHome also noted two QSFP ports on the ASRock Rack board, but said the configuration and controller behind them were not clear.
Early hardware, limited details
ASRock Rack has not released full details for the 1U4E1S-ARM, and ServeTheHome reported that the system had not appeared on the company’s website. The unit shown at Computex also appeared lightly populated inside, which makes sense for a motherboard that ASRock Rack also plans to use in paired-node systems.
The broader shift is easy to spot without swallowing the launch slide whole. Arm still licenses IP to others, but AGI puts Arm into the server CPU business directly. ASRock Rack’s box is one of the first visible attempts to turn that strategy into rack hardware customers can eventually buy.
This story draws on original reporting from ServeTheHome.
