Replace a Power Supply

Use the following procedure when you need to remove or replace an AC power supply module, part number 9920-ACPWR-1600W-F, or a DC power supply module, part number 9920-DCPWR-1600W-F, from the appliance.

Tip

You can hot swap power supplies while the appliance is operational.

Note

Electrostatic discharge (ESD) can damage electronic circuits. Do not touch electronic hardware unless you wear a grounding wrist strap or other static-dissipating device.

Caution

To turn off power to this device, you must disconnect the power cord. After the device has powered down, allow at least 30 seconds before you restore power. Otherwise, this device might produce a core file during the reset that can result in an extra delay during the boot process.

For an AC power supply:

Note

If your AC power cord is secured with a retention clip, continue to Step a; otherwise go to Step c.
1. Press the tab (A) on the underside of the cable clamp and slide the cable clamp away from the power cord plug until the cable clamp reaches the end of the retention strap, as shown in Removing the AC power cord.
  
  Removing the AC power cord
2. To release the clamp around the power cord, press the tab (B) down and remove the retention clip from the power cord.
3. Remove the AC power cord from the AC power supply.
4. Disconnect the other end of the power cord at the power source.
5. Continue to Step 3.
For a DC power supply:
1. Disconnect both ends of the power cord.
2. Remove the grounding cable.
Pull up on the lever bar until it reaches straight out, and forms a 90° angle with the front of the power supply.
Press the release lever to the left and remove the power supply using the handle.

Removing the power supply from the chassis
If you are replacing the power supply, see the procedure for Installing an AC power supply or Installing a DC power supply.

Note

A filler panel is required if you are not replacing the power supply.