ASRock Rack Shows Early Xeon 7 "Diamond Rapids" Motherboard for Up to 4 TB of DDR5

Monday, November 9th 2026

ASRock Rack is promising up to 4 TB of DDR5 on a single socket with its DMRD16-2L+, one of the first motherboards built for Intel's upcoming Xeon 7 "Diamond Rapids" processors. The board was shown at the OCP Global Summit 2026 and has since been detailed by ServeTheHome. It has 16 DIMM slots in a one-DIMM-per-channel layout, matching the 16-channel memory setup Intel detailed at HOT CHIPS. Regular RDIMMs top out at 128 GB per module and 8000 MT/s, while MRDIMMs run at up to 12,800 MT/s, with taller 2U MRDIMMs reaching 256 GB each. Populate all 16 slots with those, and you hit 4 TB, along with a theoretical bandwidth of roughly 1.6 TB/s.

Expansion is unusual, with no standard PCIe slots and no OCP NIC 3.0 connector. All I/O goes through up to 16 MCIO x8 connectors, each rated for PCIe 6.0 or CXL 3.0, for 128 lanes in total. The rest is fairly basic: one PCIe 5.0 x4 M.2 slot, two Intel I350 Gigabit Ethernet ports, an ASPEED AST2700 BMC with a dedicated management port, and VGA output. ASRock Rack fits it all on a 12 x 13-inch EEB PCB, about the size of a large E-ATX board, so it could squeeze into some bigger workstation cases. Pricing and availability have not been shared yet, but that is hardly surprising, since Intel has the Xeon 7 family slated for a 2027 debut on the new LGA9324 socket. The board is aimed at servers, though anyone planning a high-memory workstation for local AI will probably keep an eye on it.

Sources:

ServeTheHome, via Notebookcheck

Expansion is unusual, with no standard PCIe slots and no OCP NIC 3.0 connector. All I/O goes through up to 16 MCIO x8 connectors, each rated for PCIe 6.0 or CXL 3.0, for 128 lanes in total. The rest is fairly basic: one PCIe 5.0 x4 M.2 slot, two Intel I350 Gigabit Ethernet ports, an ASPEED AST2700 BMC with a dedicated management port, and VGA output. ASRock Rack fits it all on a 12 x 13-inch EEB PCB, about the size of a large E-ATX board, so it could squeeze into some bigger workstation cases. Pricing and availability have not been shared yet, but that is hardly surprising, since Intel has the Xeon 7 family slated for a 2027 debut on the new LGA9324 socket. The board is aimed at servers, though anyone planning a high-memory workstation for local AI will probably keep an eye on it.