Owners Manual

Jumpers and connectors

This topic provides specific information about the jumpers. It also provides some basic information about jumpers and switches

and describes the connectors on the various boards in the system. Jumpers on the system board help to disable the system and

setup passwords. You must know the connectors on the system board to install components and cables correctly.

Topics:

• System board jumper settings

• System board connectors

• Disabling forgotten password

System board jumper settings

For information on resetting the password jumper to disable a password, see the Disabling a forgotten password section.

System board connectors

Figure 76. PowerEdge C6420 system board connectors

Table 40. System Board Connectors and Description

Item Connector Description

1 PCIe B NVMe B connector

2 PCIe A NVMe A connector

3 PCIe Slot 5 Slot 5: x16 PCIe Gen3 from CPU 2

4 DIMM sockets (4) DIMM B8, DIMM B4, DIMM B5, DIMM

5 DIMM sockets (4) DIMM A8, DIMM A4, DIMM A5, DIMM

6 HFI_SB_1 Side band cable 1 for OCP

7 HFI_SB_2 Side band cable 2 for OCP

Jumpers and connectors 127