User Manual

Table Of Contents
Chapter 2: Hardware Setup
2-32
2.8.3 Redundant power supply units
To replace a power supply unit (PSU):
1. Lift up the PSU lever.
2. Hold the PSU lever, press the PSU latch (A), then carefully pull the PSU out of the
system chassis (B).
We recommend that you use both of your hands in performing the following steps.
PSU lever
3. Align and insert the replacement PSU into the empty PSU bay until it clicks in place.
The system automatically combines the two power supply modules as a single one.
The combined output power varies with input voltages.
To enable the hot-swap feature (redundant mode), keep the total power consumption
of the system under the maximum output power of an individual power supply module.
Always use PSUs with the same watt and power rating. Combining PSUs with different
wattages may yield unstable results and potential damage to your system.
At least two working power supply units are required in order for the system to boot
normally.
For a steady power input, use only the power cables that come with the server system
package.