System board components
The illustration in this section shows the component locations on the system board.
Figure 1. System board components


| 1 CMOS battery connector | 21 SATA 0-3 connector |
| 2 PCIe 2 connector | 22 SATA 8-11 connector |
| 3 PCIe 1 connector | 23 Internal USB connector 3 |
| 4 Operator-information-panel connector | 24 Internal USB connector 4 |
| 5 Power distribution board signal connector | 25 TPM1/TCM2 connector (for Chinese Mainland only) |
| 6 Power distribution board power connector | 26 PCIe slot 8 enable connector3 |
| 7 Fan 4 connector | 27 PCIe slot 9 (processor 1) |
| 8 DIMM 17-24 slots (processor 2) | 28 PCIe slot 8 (processor 2)3 |
| 9 PCIe 3 connector | 29 PCIe slot 7 (processor 2) |
| 10 Fan 3 connector | 30 PCIe slot 6 (processor 2) |
| 11 Processor 2 socket | 31 PCIe slot 5 (processor 2) |
| 12 CFF RAID power connector | 32 DIMM 9-16 slots (processor 1) |
| 13 Fan 2 connector | 33 Processor 1 socket |
| 14 DIMM 25-32 slots (processor 2) | 34 DIMM 1-8 slots (processor 1) |
| 15 PCIe 4 connector3 | 35 Intrusion switch connector |
| 16 M.2 signal connector | 36 PCIe slot 4 (processor 2) |
| 17 Fan 1 connector | 37 PCIe slot 3 (processor 1) |
| 18 Front USB connector | 38 PCIe slot 2 (processor 1) |
| 19 M.2 power connector | 39 PCIe slot 1 (processor 1) |
| 20 SATA 4-7 connector |
Note
1 Trusted Platform Module
2 Trusted Cryptographic Module
3 28 PCIe slot 8 is disabled by default. Connect 26 PCIe slot 8 enable connector to 15 NVMe 4 connector to enable PCIe slot 8.
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