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Supermicro H12SSL-i

E-ATX SP3 board for qualified EPYC 7002/7003 CPUs, eight-channel DDR4 ECC and onboard IPMI management. This entry identifies one product model; revision and firmware qualifications are stated below.

Original local schematic of Supermicro H12SSL-i; not a product photograph or dimensional drawing
ORIGINAL LOCAL SCHEMATIC // NOT TO SCALE OR A PRODUCT PHOTOGRAPH

IDENTIFICATION: Check the PCB silkscreen, printed revision, assembly code, and firmware identifier on the actual board. Similar model names and PCB revisions may use different specifications or firmware.

Specifications

Catalog subcategoryWorkstation and server boards
Exact board / modelSupermicro H12SSL-i
Era / platformSingle-socket AMD EPYC SP3 server/workstation board, 2019
CPU and socketOne AMD EPYC 7002 or 7003-series SP3 processor where listed by Supermicro; 7003 support depends on board revision and BIOS
Chipset / controllerAMD EPYC SoC platform; ASPEED AST2500 BMC
MemoryEight DDR4 ECC DIMM slots, eight-channel; supported RDIMM/LRDIMM type, capacity and speed depend on CPU and BIOS
Expansion and connectivityE-ATX; three PCIe 4.0 expansion slots with x16/x16/x8 lane groups, eight SATA 6 Gb/s, one M.2, dual Gigabit Ethernet plus dedicated IPMI management LAN, VGA and USB
FirmwareSupermicro BIOS and BMC firmware are separate. Use the H12SSL-i revision-specific manual, firmware release notes, and CPU support matrix; do not cross-flash H12SSL-NT or H12SSL-C.

Compatibility and revision notes

SP3 CPU generations and 7003 CPU support are BIOS/revision-sensitive. Populate memory in the manual's channel order; verify EPS12V power, chassis airflow over CPU/VRM and the correct BIOS before bringing up a high-TDP EPYC processor.

Physical socket fit alone does not establish compatibility. Verify the exact processor support list, minimum BIOS, memory population rules, case dimensions, power connectors and shared-lane behavior in the cited model documentation before installation.

Preservation and repair

Preserve the BMC MAC label and IPMI credentials/configuration before resetting. Inspect SP3 carrier/socket contacts, board standoffs and high-current VRM area; log BMC sensor readings and firmware versions. Use the board's recovery procedure rather than interrupting an update.

For an archive record, photograph the PCB and labels before cleaning; note serial/date codes, BIOS/BMC versions, accessories, known faults, repairs, and test conditions. Use ESD-safe handling and never apply power with loose conductive hardware beneath the board.

Sources & further reading

  1. Supermicro — H12SSL-i product specificationsManufacturer product page with platform, memory, slot, network and management details.
  2. Supermicro — H12SSL-i product resourcesManufacturer support resources, documentation and firmware.

Manufacturer model documentation is the primary reference; confirm the document revision and board markings when specifications vary by revision or SKU.