How to Remove and Replace a Ultra 24 Workstation Power Supply:ATR:1349709.1:0

Asset ID:	1-71-1349709.1
Update Date:	2011-11-04
Keywords:

Solution Type Technical Instruction Sure

Solution 1349709.1 : How to Remove and Replace a Ultra 24 Workstation Power Supply:ATR:1349709.1:0

Applies to:

Sun Ultra 24 Workstation - Version: Not Applicable and later [Release: N/A and later ]
Information in this document applies to any platform.

Goal

How to Remove and Replace a Ultra 24 Workstation Power Supply

Solution

DISPATCH INSTRUCTIONS
- WHAT SKILLS DOES THE ENGINEER NEED:Nothing beyond basic hardware and Solaris training
- TIME ESTIMATE: 60 minutes
- TASK COMPLEXITY: 0

FIELD ENGINEER INSTRUCTIONS:
- PROBLEM OVERVIEW: How to Remove and Replace a Ultra 24 Workstation Power Supply
- WHAT STATE SHOULD THE SYSTEM BE IN TO BE READY TO PERFORM THE
RESOLUTION ACTIVITY?:
- WHAT ACTION DOES THE ENGINEER NEED TO TAKE:

1. Powering Off the System and Removing the Left-Side Access Panel.

   I. Power off the system and all the peripherals connected to it.
   II. Turn the power switch on the back of the chassis to the Off position.
caution icon Caution - Failure to properly turn off the system before you start installing components can cause serious component damage.
   III. To maintain system grounding, do not unplug the AC power cord from the back of the system unless the specific procedure instructs you to unplug it.
   IV. Loosen the two captive thumbscrews located on the rear edge of the left side access panel
   V. Slide the access panel approximately 1.5 cm toward the back of the workstation.
   VI. Tilt the top edge of the panel out, then lift the panel upward.
   VII. Carefully set the panel aside.

Remove the Power Supply

1. Unplug the AC power cord from the system.
2. Gently lay the system on its right side on a stable, nonslip surface.
3. Locate the power supply.
4. Unfasten the connectors from the motherboard and release the cable management straps.
5. Unfasten the power connectors attached to the motherboard, DVD drive and storage backplane.
6. While supporting the power supply, unfasten the four mounting screws.
7. Remove the power supply from the interior of the system chassis.
8. Install the new power supply

Install the Power Supply

1. Remove the new power supply from its package.
2. Locate where the power supply is to be installed, then place the power supply inside the chassis
     a. Align the power supply IEC-320 connector (power cord socket) and fan with the chassis back panel opening.
     b. Position the power supply with the chassis power supply brackets.
     c. Rotate the power supply down and into the chassis.
3. Fasten the four mounting screws on the back of the chassis to secure the power supply to the chassis.
4. Reconnect the power supply cables and then secure them with the cable management straps.
Caution - When you connect the power supply cables, make sure that the cables do not interfere with the DIMMs. If the cables push against the DIMMs, the DIMMs might loosen from their connectors.
5. Verify that the four mounting screws are secure, that all cables are reconnected and that the cables are secured by the cable management straps.
6. Close the system

OBTAIN CUSTOMER ACCEPTANCE
- WHAT ACTION DOES THE CUSTOMER NEED TO TAKE TO RETURN THE SYSTEM TO
AN OPERATIONAL STATE:Power on the system, and verify the installation

PARTS NOTE:

REFERENCE INFORMATION:

Sun Ultra 24 Workstation Service Manual
http://download.oracle.com/docs/cd/E19127-01/ultra24.ws/820-2480-12/

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