Appendix B. Component reference
When installing optional components, you will often need to remove other components to gain access.
Internal connector locations and procedures for removing and installing components to gain access to other
system components are in this appendix.
• “Internal connectors” on page 283
• “Component access” on page 292
Internal connectors
The topics in this section provide information about connectors that are inside the server.
For information about external connectors on the front and rear of the server, see “Front view” on page 24
and “Rear view” on page 31.
System-board connectors
The following illustration shows the internal connectors on the system board.
Figure 53. System-board connectors
Table 219. System-board internal connectors
Callout Callout
1 “Front panel” connector 6 Hard disk drive “Power” connector
2 “Fan board” power connector (J56) 7 Front panel “USB” connector
3 “Fan board” signal connector (J40) 8 “PCIe/NVMe” connector
4 “Front video” connector 9 “NVMe” connector
5 Hard disk drive “Signal” connector
System-board LEDs
The following illustration shows the location of light path diagnostic LEDs and light path diagnostic switch on
the system board. These LEDs can often identify the source of an error.
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