The AMD Ryzen Threadripper HEDT processors support up to 2 TB of quad-channel ECC memory, which means some companies can choose to cut costs by opting for 3rd gen Ryzen Threadrippers over EPYC "Rome" processors, if they're okay with a narrower memory bus. There weren't any server-grade AMD TRX40 chipset motherboards, until ASRock Rack picked up the challenge, with the new TRX40D8-2N2T. This motherboard is designed for high-uptime use, featuring server-grade VRM, networking interfaces, and an ASPEED IPMI+display+iKVM chip.

Built in the ATX form-factor, the TRX40D8-2N2T features one sTRX4 socket supporting 3rd gen Ryzen Threadripper processors (including the 3990X), eight DDR4 DIMM slots supporting up to 256 GB (32 GB per DIMM) of quad-channel DDR4 memory, with or without ECC. Memory speeds of up to DDR4-3200 are supported. The sTRX4 socket is wired to three PCI-Express 4.0 x16 slots and one open-ended PCI-Express 4.0 x8. Storage connectivity includes six SATA 6 Gbps ports, and two M.2-22110 slots with PCI-Express 4.0 x4 wiring. Networking includes two 10 GbE ports driven by an Intel X710-AT2 controller, and two 2.5 GbE ports put out by a pair of Intel i225-LM controllers. The ASPEED AST2500 chip puts out a GbE port and D-Sub (basic display) connector of its own. There's no onboard audio. The company didn't reveal pricing.