Sun Enterprise 250 Server
 

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Goal

Solution

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Applies to:

Goal

  Sun Enterprise 250, How to replace Power Supply

Solution

DISPATCH INSTRUCTIONS


WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED:
Sun Enterprise 250 product training and field experience

TASK COMPLEXITY: 1

TIME ESTIMATE: 40 minutes

FIELD ENGINEER INSTRUCTIONS

PROBLEM OVERVIEW: Power Supply failure

OBTAIN CUSTOMER ACCEPTANCE

WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE RESOLUTION ACTIVITY? :

A data backup is not a pre-requisite but is a wise precaution.
The customer should conduct an orderly software system shutdown.

 WHAT ACTION DOES THE FIELD ENGINEER/CUSTOMER ADMINISTRATOR NEED TO TAKE:

It is not necessary to power off the system if you are removing a redundant power supply. If your system has only one power supply, please power off the system.

Removing the Power Supply

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

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.

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.

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.
a. Insert the filler panel into the bay.
b. Fasten the two Phillips screws that secure the filler panel to the chassis.

Installing the new Power Supply

If you are installing a redundant power supply, it is not necessary to power off the system.

1. If you are upgrading your system with an additional power supply, remove the filler panel covering the power supply bay:
a. Remove the two screws securing the filler panel to the chassis.
b. Partially pry the left side of the filler panel out of the bay, using a flat-blade screwdriver.
c. Lift the filler panel up and away from the bay, and set it aside.

2. Slide the new power supply into the power supply bay until the power supply connectors start to engage the connectors on the power distribution board.

3. Push on the power supply handle to firmly engage the connectors with the power distribution board.
Press firmly to engage the power supply connectors. If you are “hot-plugging” a redundant supply, take care to avoid jarring or shocking the system.

Note – When installing a “hot-pluggable” power supply, do not engage and disengage 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.

4. Tighten the two captive screws that secure the power supply to the chassis.

5. Connect the AC power cord to both the power supply and an AC power outlet.Secure the cord to the rear panel with the strain-relief tie-wrap.

Verify correct operation of the power supply by checking the fan and LED indicators on the rear of the supply. The fan should start spinning and both LEDs should light
within three seconds of completing a hot-plug installation (or after restoring power to the system).

Note –The power supply retains its last power on/off state once it is removed from the system. If you remove a power supply from a system that is powered off and
attempt a hot-plug installation into a system that is powered on, the power supply will remain off. To activate the power supply, turn the front panel keyswitch from
the Power-On position to the Diagnostics position, and then back to the Power-On position. Alternatively, you may press the Power-On key on a Sun Type-5 keyboard attached to the system

WHAT ACTION DOES THE CUSTOMER NEED TO TAKE TO RETURN the SYSTEM TO AN OPERATIONAL STATE:

Restart software applications per applicable administration guides to resume system operation.

PARTS NOTE: Include Sun Enterprise 250 Power Supply:

https://mosemp.us.oracle.com/handbook_internal/Systems/E250/components.html#Power

ADDITIONAL COMMENTS:

Please refer to the Sun Enterprise 250 Server Owner's Guide: http://docs.oracle.com/cd/E19088-01/250.srvr/805-5160-10/805-5160-10.pdf

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