HP Apollo 2000 System, Maintenance And Service Manual

Page: 35 / 178

Remove the power supply
CAUTION:
Do not mix power supplies with different efficiency and wattage in the chassis. Install only one type of
power supply. Verify that all power supplies have the same part number and label color. The system
becomes unstable and may shut down when it detects mismatched power supplies.
Before removing the power supply, note the configuration and possible impact to the system.
• If two power supplies are installed, removal or failure of one of the power supplies might result in throttling
or shut down of the server nodes.
• The bottom power is power supply 1, and the top power supply is power supply 2. For power supply
numbering, see " Chassis rear panel components ."
• Power supply 2 is hot-swappable only if power supply 1 is installed.
• If a RCM module is installed, power down all nodes before removing the RCM module and power supply
1.
• Power supply 1 is hot-swappable only if:
◦ A RCM module is not installed.
◦ Power supply 2 is installed.
To remove the component:
1. If only one power supply is operational and it must be removed, or if the RCM module and power supply 1
must be removed, do the following:
a. Power down all nodes .
b. Access the product rear panel.
c. If installed, remove the RCM module .
2. Release the power cord from the strain relief strap.
3. Remove all power:
a. Disconnect the power cord from the power source.
b. Disconnect the power cord from the chassis.
4. Remove the power supply.
Remove the power supply 35