Install a hot-swap power supply

Follow instructions in this section to install a power supply unit (PSU).

About this task

To avoid potential danger, make sure to read and follow the safety information.

S001

DANGER

danger

Electrical current from power, telephone, and communication cables is hazardous.

To avoid a shock hazard:

• Connect all power cords to a properly wired and grounded electrical outlet/source.
• Connect any equipment that will be attached to this product to properly wired outlets/sources.
• When possible, use one hand only to connect or disconnect signal cables.
• Never turn on any equipment when there is evidence of fire, water, or structural damage.
• The device 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.

S035

CAUTION

Never remove the cover on a power supply or any part that has this 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 problem with one of these parts, contact a service technician.

CAUTION

High touch current. Connect to earth before connecting to supply.

Attention

• Read Installation Guidelines and Safety inspection checklist to make sure that you work safely.

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

  • For redundancy support, an additional hot-swap power supply must be installed, if one is not installed in the chassis.
  • Make sure that the devices that you are installing are supported. For a list of supported optional devices for the chassis, see Lenovo ServerProven website.

Procedure

1. Make preparations for this task.
   1. Make sure that the power supply unit to be installed is of the same wattage and same vendor (for CRPS models) as the installed ones. Otherwise, complete the following steps:
      1. Power off the node; then, disconnect the power cords.
      2. Remove the power supply units of wattages (or of different vendor for CRPS model) different from other power supply units.
      3. Make sure that all the power supply units in the chassis are of the same wattage, same vendor, and same latch color. Avoid mixing power supply units of different wattages or vendors in one chassis.
   2. If a PSU filler is installed in the PSU slot, remove it.
      1. Press and hold the latch on the PSU filler.
      2. Pull the filler out of the PSU slot.
         Figure 1. Removal of a PSU filler
         
         
   3. If more than one power supply units are to be installed, start with the lowest available number of PSU slot.
2. Insert the hot-swap power supply into the slot until the release latch clicks into place.
   Important

   • During normal operation, each power-supply slot must contain either a power supply or power-supply filler for proper cooling.
   • Make sure to follow the instruction on the guiding label in each slot. For slot 1, the power supply unit must be installed with the fan downward; for slots 2 and 3, the power supply units must be installed with the fan upward.
   • After docking the power supply, hold the handle and slightly pull the power supply to make sure that it is securely engaged and cannot be pulled out.

   Figure 2. Installation of a hot-swap power supply
   
   
3. Connect one end of the power cord to the AC connector on the back of the new power supply; then, connect the other end of the power cord to a properly grounded electrical outlet.