HP Server rp7420 Installation Guide, Fifth Edition - HP 9000 rp7420 Server - Page 58
AC Input Power, Power Cord Configuration
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Cabling and Power Up AC Input Power AC Input Power The server has five line cord configurations: • All four line cords (preferred configuration) • Cords A0 and A1 only • Cords B0 and B1 only • Cords A0 and B0 only • Cords A1 and B1 only A single-line-cord configuration is not allowed. Figure 4-1 Power Cord Configuration A0 A1 B0 B1 The power cord configuration is passed to the operating system using the pwrgrd (Power Grid) command. Each of the five selections in the pwrgrd command matches one of the configurations. The appropriate option should be selected for the actual line cord configuration. With the correct configuration selected, the LEDs should be green. When the pwrgrd command is invoked, the following menu is displayed: prompt> pwrgrd Power grid configuration preference. 1. Grid A only (Cords A0,B0 required) 2. Grid B only (Cords A1,B1 required) 3. Grids A & B (Cords A0,A1,B0,B1 required) 4. Cords A0 & B0 only 5. Cords A1 & B1 only Select Option: 58 Chapter 4