Supermicro ARS-211M-NR AmpereOne Server With R13SPD Motherboard

One of the interesting highlights of September was finally having our hands on an AmpereOne server! After years of being eager to test Ampere Computing's next-generation AArch64 server processors, Ampere sent over their 192-core flagship server processor for a few weeks of testing. The review server was comprised of the AmpereOne A192-32X flagship model within a Supermicro ARS-211M-NR 2U server.

Now that I'm through with the AmpereOne testing with only having access to it for a few weeks, I just wanted to summarize some of the tests for those that missed any of the articles as well as a few words on the Supermicro ARS-211M-NR server. The Supermicro ARS-211M-NR 2U AmpereOne server uses Supermicro's R13SPD motherboard. This server/motherboard support a single socket AmpereOne processor up through the flagship A192-32X SKU, 16 DIMMs for up to 4TB of ECC Registered DDR5-5200 memory, four PCIe 5.0 x16 double-width GPUs/accelerators, dual 25Gb SFP28 connections, and four 2.5-inch U.2 NVMe hot-swap bays. The R13SPD supports DDR5-5200 speeds when running in one DIMM per channel or DDR5-4400 when at two DIMMs per channel.

The Supermicro ARS-211M-NR is a fairly comprehensive single-socket AmpereOne server platform with all the bells and whistles one would expect for a higher-end server and with the space for four PCIe 5.0 double-width expansion cards can make for a nice AI inferencing server or similar.

With the AmpereOne A192-32X having a usage power rating of 276 Watts, it can be comfortably cooled with air cooling. The Supermicro ARS-211M-NR server features four 8cm fans for plenty of cooling.

The Supermicro ARS-211M-NR server features dual 2000 Watt redundant Titanium-level power supplies. The power supplies can accommodate the server being fully loaded with multiple drives and accelerators/GPUs but otherwise won't come anywhere close to hitting those power levels if just planning to make use of an AmpereOne processor and 8~16 DIMMs of DDR5.