ASROCK 1U4L4E Series User Manual page 28

Removing the Power Supply Unit
To remove a failed power supply, identify the failed power supply by checking the power
supply LEDs on the PSU.
1. Hold onto the power supply handle while pressing the locking lever towards the power
supply handle.*
*The illustration is for references only. The actual PSU type may be slightly differnet by models.
2. Pull out the power supply from the chassis.
1. Before replacing the power supply, power off the server, unplug the power cord, and
disconnect all wiring from the power supply.
2. The redundant system does not require powering down the server.
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