Figure 127. Removing the left side
a. Press the clip as illustrated above to unlock the outer CMA 1 from the rack.
b.
Repeat the previous step to inner CMA 2 to unlock it.
Step 2. Disconnect the power cord from the hot-swap power supply unit.
• For 240 V DC power supply units, turn off the server, and then, disconnect both ends of the
power cord and keep it in an ESD-safe place.
• For AC power supply units, disconnect both ends of the power cord and keep it in an ESD-safe
place.
Note: If you are replacing two power supply units, replace them one by one to ensure that the
power supply to the server is not interrupted. Do not disconnect the power cord from the secondly
replaced power supply unit until both LEDs on the firstly replaced CRPS Premium power supply
unit are lit green, or the LED on a CRPS one is lit green. For the location of the power-supply-unit
LEDs, refer to “Power-supply-unit LEDs” on page 40.
Step 3. Press the release tab toward the handle and carefully pull the handle at the same time to slide the
hot-swap power supply unit out of the chassis.
Chapter 5. Hardware replacement procedures 135
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