How to Remove a Power Supply

Before You Begin

It is not necessary to power off the system if you are removing a redundant power supply. For more information see:

• "About Power Supplies"

If your system has only one power supply, complete this task:

• "How to Power Off the System"

What to Do

1. Identify the power supply to be removed.

2. Unplug both ends of the AC power cord.

   There is no need to remove the power cord from the strain-relief tie-wrap attached to the system rear panel.

3. Loosen the two captive screws securing the power supply to the chassis.

   Figure 8-5  

   
   

4. Grasp the handle and carefully pull the power supply out of the chassis.

   Be careful to disconnect the power supply in a smooth motion.

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   Note -

   When removing a "hot-pluggable" power supply, do not disengage and reengage the supply in rapid succession. Always remove a supply completely before reinserting the same supply or a replacement supply. Rapid seating and unseating of power supplies will result in false error conditions.

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5. If you are not replacing the power supply immediately, install a power supply filler panel.

   The filler panel is needed to maintain proper system cooling and prevent electromagnetic interference.

   1. Insert the filler panel into the bay.

   2. Fasten the two Phillips screws that secure the filler panel to the chassis.

What Next

To replace a power supply, complete this task:

• "How to Install a Power Supply"