I would really like to try out a system based on the interesting [Wayback/Archive] ASRock Rack ALTRAD8U-1L2T is a mATX Motherboard for up to 128 Cores specs from the PDF and ServeTheHome images below:
ASRock AMPERE ALTRADBU-1L2T Product ASRock Rack Ampere Altra Family deep microATX motherboard Power source Supports ATX PSU or 12V DC-in Form Factor Deep Micro-ATX (9.6″ x 10.5″) Processor System CPU
Chipset1 Socket (LGA-4926) Ampere® Altra®/Altra® Max processor
System on chipMemory Capacity 8 DDR4 288-pin DIMM Slots (1DPC); Supports:
RDIMM up to 256GB each, max. 3200MHz.
LRDIMM up to 256GB each, max. 3200MHzExpansion PCIe slots Others
SLOT7: PCIe4 x16
SLOT6: PCIe4 x16
SLOT5: PCIe4 x16
SLOT4: PCIe4 x16
4 SlimSAS (PCIe4 x8)
2 OCuLink (PCIe4 x4)Storage M.2
SATA port2 M.2 M-key (PCIe4 x4), supports 2280 form factor
N/ANetwork RJ45 2 RJ45 (10GbE) by Intel® X550
1 RJ45 (1GbE) by Intel® i210Management BMC
Dedicated IPMIASPEED AST2500: IPMI 2.0
1 RJ45 via Realtek RTL8211EI/O USB
COM port6 USB3.2 Gen1 ports: 4 rear Type-A, 2 via 19-pin header
1 (9-pin) headerDisplay Video 1 DB15 (VGA), 1 (15-pin) header Security TPM Supports 13-pin (SPI) TPM modules
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