HP Compaq SP700 Reference Manual page 122

10-2 Processors
Insert the processor power module into the connector 1.
4.
Press the module down into the connector 2, until the locking tabs
5.
automatically snap into place.
NOTE: Make sure locking tabs align with the slots on the module.
Figure 10-1. Installing two processor power modules
1
2
1
2
2
2