Installation Guide, Fifth Edition - HP 9000 rp8420 Server

Chapter 2
Installation
Cabling and Power Up
56
IMPORTANT When running the server with a single power source, you must use A0 and A1. Selecting
redundant power requires all four power cords connected to A0-A1-B0-B1.
Figure 2-23 AC Power Input Labeling
The power distribution for the bulk power supplies (BPS) follows:
• A0 input provides power to BPS 0, BPS 1, and BPS 2
• A1 input provides power to BPS 3, BPS 4, and BPS 5
• B0 input provides power to BPS 0, BPS 1, and BPS 2
• B1 input provides power to BPS 3, BPS 4, and BPS 5
B1 A1 B0 A0