Replacing a hot-swap power supply

Use this information to replace a hot-swap power supply.

The following notes describe the type of power supply that the server supports and other information that you must consider when you replace a power supply:

• To confirm that the server supports the power supply that you are installing, see the Lenovo ServerProven website.
• Before installing an additional power supply or replace a power supply with one of a different wattage, the user may use the Power Configurator utility to determine current system power consumption. For more information and to download the utility, go to the IBM Power Configurator for System x, BladeCenter, and Flex System website.
• The server comes with one hot-swap 12-volt output power supply that connects to power supply bay 1. The input voltage is 100 - 127 V ac or 200 - 240 V ac auto-sensing.
• Power supplies in the server must be with the same power rating or wattage to ensure that the server will operate correctly.
• Power supply 1 is the default/primary power supply. If power supply 1 fails, you must replace the power supply with the same wattage immediately.
• The user can order an optional power supply for redundancy.
• These power supplies are designed for parallel operation. In the event of a power-supply failure, the redundant power supply continues to power the system. The server supports a maximum of two power supplies.

Statement 5

CAUTION

The power control button on the device and the power switch on the power supply do not turn off the electrical current supplied to the device. The device also might have more than one power cord. To remove all electrical current from the device, ensure that all power cords are disconnected from the power source.

Statement 8

CAUTION

Never remove the cover on a power supply or any part that has the following label attached.

Hazardous voltage, current, and energy levels are present inside any component that has this label attached. There are no serviceable parts inside these components. If you suspect a with one of these parts, contact a service technician.

To replace a hot-swap power supply, complete the following steps:

Note

You must install the fan assembly before removing or installing the power supply.

1. Read the safety information that begins in Safety and Installation guidelines.
   Attention

   Static electricity that is released to internal server components when the server is powered-on might cause the server to halt, which might result in the loss of data. To avoid this potential problem, always use an electrostatic-discharge wrist strap or other grounding system when you work inside the server with the power on.
2. Turn off the server (see Turning off the server) and all attached peripheral devices. Disconnect all power cords; then, disconnect all external cables as necessary to replace the device.
3. Disconnect all external cables and power cords.
4. Carefully turn the server on its side so that it is lying flat, with the cover facing up.
   Attention

   Do not allow the server to fall over.
5. Remove the left-side cover (see Removing the left-side cover).
6. Remove the existing hot-swap power supply (seeRemoving a hot-swap power supply ).
7. Touch the static-protective package that contains the hot-swap power supply to any unpainted metal surface on the server; then, remove the power supply from the package and place it on a static-protective surface.
8. Install the new hot-swap power supply and push it in until it locks into place.
   
   
   Note

   • If only one hot-swap power supply is installed in the server, a power-supply filler must be installed in the empty power bay.
   • Do not mix power supplies with different wattage in the server.
9. Route the power cord through the handle and cable tie if any, so that it does not accidentally become unplugged.
10. Connect one end of the power cord for the new power supply into the connector on the back of the power supply; then, connect the other end of the power cord to a properly grounded electrical outlet.
    Note

    If the server has been turned off, you must wait approximately 3 minutes after you connect the server power cord to an electrical outlet before the power-control button becomes active.
11. Make sure that the ac power LED and the dc power LED on the ac power supply are lit, indicating that the power supply is operating correctly. The two green LEDs are to the right of the power-cord connector.
12. If you are replacing a power supply with one of a different wattage, apply the power information label provided with the new power supply over the existing power information label on the server. Power supplies in the server must be with the same power rating or wattage to ensure that the server will operate correctly.
    
    
    
13. If you are adding a power supply to the server, attach the redundant power information label that comes with this option on the server cover near the power supplies.
    
    
    
14. If you are instructed to return the drive backplane, follow all packaging instructions, and use any packaging materials for shipping that are supplied to you.