2.2.1 system structure
Purley 1U dual cabinet server with Intel Purley platform, with Intel Xeon SkyLake CPU; support 12 DDR4
Channel, 24 DDR4 slots; maximum support 3.0TB (with -M processor) memory capacity;
The main board features are as follows:
CPU uses Intel LGA3647-P0 SKY-LAKE processor; (Remark: CPU supports normal and SKY-Fabric
processors.)
Each CPU supports six channels of DDR4, two DIMMs per channel, RDIMM/LRDIMM. Each CPU
supports a maximum capacity of 1.5TB;
DDR4 type: DDR4-1866/2133/2400/2666 ECC-RDIMM, ECC-LRDIMM;
There are three PCIE RISER slots on the board. Among them: RISER1 24 PCIE LANs are all from
CPU1, RISER2's 24 LANEs are from CPU2, and RISER3's 16 PCIE LANEs are also from CPU2.
There are two MEZZANINE CONNs on the main board to insert SAS daughter boards and I/O
daughter boards. The supported SAS daughter boards include: LSI3008 and PMC8068; Supported I/O
daughter boards: I350-AM2/AM4, JL82599ES, X710L -BM1, X710L-BM2;
One PCIE PORT: X4 LANE-to-PCIE M.2 SLOT leads from the CPU 1 on the mainboard, supporting
PCIE M.2 storage media;
Two Gigabit BASE-Ts are integrated on the main board and Intel I350-AM2 chips are used from CPU1;
Southbridge PCH adopts INTEL LEWISBURG C620 series chipset;
PCH leads to 14 SATA ports, the highest rate: 6Gb / s, compatible with SATA 1.5Gb / s, 3.0Gb / s;
SATA Controller out of 8 SATA PORT, and SSATA out of 6 SATA PORT, which SATA PORT 8 PORT,
according to Sequentially introduced into two SFF8643 connectors, and the first four PORTs of SSATA are
introduced into one SFF8643 connector, and the second two PORTs are introduced into the 7PIN SATA
connector to access the SATA DOM and DVD;
The BMC chip in the single board adopts ASPEED's AST2500 control chip for remote IPMI
management. Debug port, VGA output port, dedicated Gigabit RJ45, and RMII/NCSI connection to
I350-AM2 for sharing I350-AM2's two network ports.
The system architecture board diagram is as follows:
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