Gigabyte R1A3 T40 AAV1 AmpereOne M at the SC25 Conference
At the SC25 conference, we discovered several models of the AmpereOne M platform, including the Gigabyte R1A3-T40-AAV1. This is a single-socket platform that utilizes a 12-channel memory Arm chip, providing a modern competitor to AMD and Intel’s large socket products.
The server features a 1U chassis with four front-facing PCIe Gen5 NVMe drive bays. This configuration is more suited for ten or twelve 2.5-inch NVMe SSDs, so it is surprising to see the 3.5-inch specification.
Gigabyte R1A3 T40 AAV1 AmpereOne M at the SC25 Conference
In the center is a single AmpereOne M processor socket, with six DDR5 DIMM slots on each side, totaling twelve. This is a twelve-channel design with a single memory module per channel (1DPC).
Gigabyte R1A3 T40 AAV1 AmpereOne M at the SC25 Conference
Similar to many motherboards, we rely on cables to connect the PCIe interfaces. Below is the x16 cable connector.
Gigabyte R1A3 T40 AAV1 AmpereOne M at the SC25 Conference
They can also be seen on the other side. There is also a PCIe Gen5 x4 M.2 slot inside.
Gigabyte R1A3 T40 AAV1 AmpereOne M at the SC25 Conference
At the rear of the chassis, there are two OCP NIC 3.0 slots, with two full-height PCIe Gen5 x16 slots above them, providing a total of 64 PCIe Gen5 lanes. According to network configuration standards, this design can support the deployment of four 400GbE ports at the back while retaining a 1GbE port and a management port.
Gigabyte R1A3 T40 AAV1 AmpereOne M at the SC25 Conference
The connector at the back of the motherboard is an MCIO x8 connector.
In the 1U platform, Gigabyte not only showcased a 12-channel memory configuration but also enabled approximately 84 of the maximum 96 PCIe Gen5 lanes on the platform, which is quite impressive. We hope to test these AmpereOne M platforms in the near future. Even if we cannot, NVIDIA’s support for Arm servers, along with development platforms like NVIDIA DGX Spark/GB10, is indeed driving the growth of the Arm ecosystem.