System-board connectors

The following illustrations show the internal connectors on the system board.

Figure 1. System-board connectors

Table 1. System-board connectors

1 SYS_FAN3 connector	22 Fan4 connector
2 Processor power connector	23 Front I/O module connector
3 DIMM 1	24 Front USB 3.0/2.0 header
4 DIMM 2	25 M.2 power connector
5 DIMM 3	26 Internal USB 3.2 Gen1 connector
6 DIMM 4	27 M.2 signal connector
7 BP2 power connector	28 Intrusion switch connector
8 BP1 power connector	29 CMOS battery
9 Power distribution board side band connector	30 Firmware and RoT security module connector
10 Fan1 connector	31 PCIe slot 4
11 Processor socket	32 PCIe slot 3
12 Fan2 connector	33 PCIe slot 2
13 Optical drive power connector	34 PCIe slot 1
14 System power connector	35 NMI button
15 Slimline x8 connector	36 Two USB 3.2 Gen1 connectors
16 SATA 6	37 Two USB 3.2 Gen1 connectors
17 SATA 7	38 Ethernet connector 2
18 SATA 0–3	39 Ethernet connector 1 (shared with XCC network port)
19 SGPIO1 connector	40 XCC network connector
20 SATA 5	41 Serial connector and VGA connector
21 SATA 4