System board components

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

Figure 1. System board components

1 NMI button	2 Serial port module connector
3 TPM module connector	4 Riser 1 slot
5 Internal USB connector	6 OCP 3.0 Ethernet adapter connector
7 CMOS battery (CR2032)	8 7mm backplane signal connector
9 M.2 power connector	10 Front USB connector
11 7mm backplane power connector	12 Fan connectors
13 Front I/O connector	14 Front VGA connector
15 Backplane 3 power connector	16 PCIe connector 1
17 PCIe connector 2	18 Backplane 2 power connector
19 CFF expander power connector	20 Intrusion switch connector
21 CFF RAID/HBA power connector	22 External diagnostics connector
23 Backplane 1 power connector	24 PCIe connector 3
25 PCIe connector 4	26 Riser 3 Sideband Connector
27 PCIe connector 5	28 PCIe connector 6
29 Power supply 1 connector	30 GPU power connector
31 Riser 3 power connector	32 Power supply 2 connector
33 M.2/Rear backplane signal connector	34 SATA connector 2
35 SATA connector 0	36 SATA connector 1
37 Riser 2 slot