[ INDIVIDUAL COMPONENT // MOTHERBOARDS ]
Supermicro X12DPG-QT6
Dual-LGA4189/C621A system platform for two qualified Xeon Scalable CPUs and 16 ECC DIMMs. This record is restricted to the exact printed SKU; confirm the physical PCB revision before installation or firmware service.
MODEL / REVISION: X12DPG-QT6 is the exact manufacturer model/SKU documented here. Match the PCB revision and assembly label printed on the physical board before choosing firmware or CPU support; revision-specific differences must not be inferred from a similar model or suffix.
Specifications
| Exact board / SKU | Supermicro X12DPG-QT6 — exact product suffix retained; verify PCB revision from board silkscreen. |
|---|---|
| PCB revision | The manufacturer reference identifies this exact model SKU, not a single board assembly revision. Read the revision silk-screen on the physical PCB; no unverified revision number is assumed. |
| CPU socket / platform | Two 3rd-generation Xeon Scalable processors in LGA4189 (Socket P+); qualify models and TDP for both sockets. |
| Chipset / controller | Intel C621A |
| Form factor | 15.12 × 13.2 in large dual-socket server board; system-specific chassis/mounting, not standard ATX/E-ATX. |
| Memory / ECC | Sixteen DDR4 slots across both CPUs, ECC RDIMM/LRDIMM up to DDR4-3200; vendor lists up to 4 TB and optional Optane PMem 200 in validated configurations. |
| PCIe topology | Six PCIe 4.0 x16 and one PCIe 4.0 x8 interface; usable lanes depend on both CPUs and supported riser/chassis. |
| Storage | Ten SATA 6 Gb/s ports via C621A and two M.2 PCIe 4.0 x4 sockets with RAID 0/1; confirm SATA/backplane wiring in model manual. |
| Network / BMC | Dual Intel X550 10GBase-T Ethernet; IPMI 2.0/KVM with dedicated management LAN. |
| Firmware / platform support | Use exact X12DPG-QT6 BIOS/BMC, dual-CPU support list and chassis/riser data; match both CPUs, memory and firmware. |
Compatibility and revision notes
Use exact X12DPG-QT6 BIOS/BMC, dual-CPU support list and chassis/riser data; match both CPUs, memory and firmware. Populate memory only in the documented module class and channel order; ECC does not make UDIMM/RDIMM classes interchangeable. Check chassis clearance, cooler, power connectors, risers, storage cabling and BMC network isolation against the model manual.
Socket shape and chipset branding alone do not guarantee CPU compatibility. Confirm exact CPU/stepping, minimum BIOS, memory QVL, PCIe lane sharing and board revision before service.
Preservation and repair
Record PCB silk-screen, serial label, BIOS/BMC versions, MAC addresses, attached risers and cables, and test conditions. Use ESD-safe handling and the vendor socket procedure; never apply firmware for a visually similar SKU.
Sources & further reading
- Supermicro X12DPG-QT6 — manufacturer product specificationsPrimary model-specific reference for board platform, memory, expansion and onboard features.
- Supermicro X12DPG-QT6 — manufacturer manual and support resourcesConsult matching manual, CPU/memory data and BIOS/BMC resources for exact product and PCB revision.
Manufacturer documentation for the exact product and printed PCB revision takes precedence over this summary.