Component identification  93 
Item  Description 
16 
Fan connector 3 
17 
Fan connector 2 
Fan connector 1 
19 
Processor 2 DIMM slots 
20 
Processor socket 2 
21 
Discovery service connector 
22 
Drive backplane power connector 
Drive sideband signal connector 
24 
Secondary GPU power connector 
25 
Power supply connector 1 
26 
Power supply connector 2 
27 
Processor socket 1 
28 
Processor 1 DIMM slots 
29 
SD card slot 
30 
NMI header 
31 
System maintenance switch 
* For more information on the riser board slots supported by the onboard PCI riser connectors, see "PCIe riser 
board slot definitions (on page 91)." 
 
DIMM slot locations 
DIMM slots are numbered sequentially (1 through 6) for each processor. The supported AMP modes use the 
letter assignments for population guidelines. 
 
 
System maintenance switch 
 
Switch  Default  Function 
1 
Off  Off = No function 
On = iLO 4 security is disabled