Installation Guide, Seventh Edition - HP Integrity rx4640 Server

Installing Additional Components
Installing External Components
Chapter 3
34
Figure 3-3 Disk Drive Installation in Slot 2
Installing a Power Supply Unit
The supported configuration of an HP Integrity rx4640 server requires a minimum of one 200-240 VAC power
supply unit to be installed. A second PSU can be installed to provide N+1 capability.
The left side (viewing from the rear) hot-swap PSU is identified as P 0, and the second hot-swap power supply
is identified as P 1. Each PSU requires a separate power cord, installed in the appropriate power cord
receptacle, and attached to a power cord support bracket. Figure 3-4 shows the power supply locations on the
rear panel of the server.
NOTE The power supplies are hot-swappable.
WARNING Be careful when installing a power supply. It is heavier than it appears.