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System-board components

The illustration in this section shows the component locations on the system board.

Figure 1. System board components

Table 1. Components on the system board
1Rear fan connector22SATA 4
2Front VGA connector23Fan 4 connector for front fan
3Processor power connector24TPM/TCM connector
4DIMM Slot 125Front panel connector
5DIMM Slot 226Intrusion switch connector
6DIMM Slot 327Front USB connector
7DIMM Slot 428Internal USB 3.2 Gen 1 connector
8Processor socket29M.2 signal connector
9Backplane 1 power connector30M.2 power connector
10Power distribution board side band connector31CMOS battery
11Fan 1 connector for front fan32PCIe Slot 4
12Backplane 2 power connector33PCIe Slot 3
13Fan 2 connector for processor34PCIe Slot 2
14Optical/tape drive power connector35PCIe Slot 1
15System power connector36Two USB 3.2 Gen 2 connectors
16MCIO x4 connector for NVMe37Two USB 3.2 Gen 2 connectors
17SATA 638Ethernet connector 2
18SATA 739Ethernet connector 1 (shared with XCC network port)
19SATA 0 to 340Lenovo XClarity Controller(XCC) management port
20SGPIO1 connector41VGA and serial port connector
21SATA 5