System-board connectors

This section contains information on the internal connectors on the system board.

Table 1. System-board connectors

1 Firmware and RoT security module connector	16 Node sideband connector
2 OCP signal connector	17 PCIe riser slot 1 connector (Gen4)
3 PCIe riser slot 2 connector (Gen5)	18 NVMe 0-1 connector (Gen5)
4 RAID signal connector	19 SATA connector
5 OCP power and sideband connector	20 NVMe 2-5 connector (Gen5)
6 Power bus bar connector	21 CMOS battery socket
7 RAID power connector	22 M.2 bay 1
8 Fan 1 connector	23 M.2 bay 0
9 (Reserved)	24 MicroSD card socket
10 (Reserved)	25 Serial connector
11 Backplane power connector	26 External diagnostic handset connector
12 Fan 3 connector	27 USB connector
13 PCIe riser power connector	28 Rear I/O signal connector
14 Fan 4 connector	29 VGA connector
15 P12V AUX power connector