How to Remove and Replace a Netra t 1120/1125 Power Supply:ATR:1527060.1:1

Asset ID:	1-71-1527060.1
Update Date:	2016-01-20
Keywords:

Solution Type Technical Instruction Sure

Solution 1527060.1 : How to Remove and Replace a Netra t 1120/1125 Power Supply:ATR:1527060.1:1

Applies to:

Sun Netra T1120 Server - Version Not Applicable to Not Applicable [Release N/A]
Sun Netra T1125 Server - Version Not Applicable to Not Applicable [Release N/A]
Information in this document applies to any platform.

Goal

How to Remove and Replace a Netra t 1120/1125 Power Supply

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Fix

DISPATCH INSTRUCTIONS WHAT SKILLS DOES THE FIELD ENGINEER/ADMINISTRATOR NEED?:

Netra t 1120/1125 product training is desirable but not required

TIME ESTIMATE: 45 mins

TASK COMPLEXITY: 1

FIELD ENGINEER/ADMINISTRATOR INSTRUCTIONS:

PROBLEM OVERVIEW: Power Supply Failure

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 and power off the system.

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

To Remove the Power Supply

Caution – Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in antistatic bags before placing them on any surface.

1. Attach the wrist strap.

2. Power off the system and remove the input power connector(s).

Caution – When removing the power supply, attach the copper end of the wrist
strap to the system unit chassis, not to the power supply.

3. Remove the top access cover.

4. Using an 8mm wrench, remove the primary earth connection by removing the M5
nut and captive washer.

5. Using an 8mm wrench, remove the logic ground connection by removing the two
M5 nuts and captive washers.

6. Using a No.2 Phillips-head screwdriver, loosen the eight external
and two internal captive screws securing the power supply to the chassis.

7. Using a Phillips No. 2 screwdriver, remove the two captive screws securing the
power supply bracket to the chassis front crossmember.

8. Push the power supply forwards slightly to clear the earth grounding stud.

9. Lift the power supply from the chassis until it is restrained by the power supply
cables. Rest the power supply on the front crossmember of the enclosure.

10. Remove the cables from the clip retaining them to the processor mounting plate.

11. Disconnect the two cables from the alarms card. (To perform this it may be
necessary to remove a PCI card from the chassis.)

12. Disconnect the power supply cables from the motherboard.

13. Disconnect the power supply cable from the removable drive assembly.

14. Disconnect the power supply cable from the hard disk drive assembly or
assemblies.

15. Disconnect the power supply cable from the main fan unit.

16. Remove the power supply from the chassis.

To Replace the Power Supply

Caution – Use proper ESD grounding techniques when handling components. Wear
an antistatic wrist strap and use an ESD-protected mat. Store ESD-sensitive
components in antistatic bags before placing them on any surface.

1. Attach the wrist strap.

2. Position the power supply above the chassis. Rest it, upside-down (unlabeled side
up), on the front crossmember of the enclosure.

3. Connect the power cable to the removeable media drive assembly (if fitted).

4. Connect the three main power supply cables to the motherboard.

5. Connect the power cable to the SCSI backplane assembly.

6. Connect the power cable to the main fan assembly.

7. Connect the cable connector to the alarms card.

8. Position the power supply toward the rear of the chassis until the power supply
rear panel is flush with the chassis.

9. Using a No.2 Phillips-head screwdriver, tighten the eight captive screws securing
the power supply to the rear of the chassis.

10. Using a No.2 Phillips-head screwdriver, tighten the two captive screws securing
the power supply bracket to the chassis front crossmember.

11. Using a No.2 Phillips-head screwdriver, tighten the captive screw within the PSU
to the chassis L-bracket.

12. Using an 8mm wrench, secure the primary earth connection by tightening the M5
nut and captive washer.

13. Using an 8mm wrench, secure the logic ground connection by tightening the two
M5 nuts and captive washers.

14. Replace the top access cover.

15. Reconnect the input power connector(s) and power on the system.

16. Detach the wrist strap.

OBTAIN CUSTOMER ACCEPTANCE WHAT ACTION DOES THE FIELD ENGINEER/ADMINISTRATOR NEED TO TAKE TO
RETURN THE SYSTEM TO AN OPERATIONAL STATE:

Boot system and verify functionality

PARTS NOTE:

https://support.us.oracle.com/handbook_internal/Systems/Netra_t_1120/Netra_t_1120.html

https://support.oracle.com/handbook_private/Systems/Netra_t_1120/Netra_t_1120.html

https://support.us.oracle.com/handbook_internal/Systems/Netra_t_1125/Netra_t_1125.html

https://support.oracle.com/handbook_private/Systems/Netra_t_1125/Netra_t_1125.html

REFERENCE INFORMATION:

Netra t 1120/1125 Service Manual (805-6804-10): https://support.oracle.com/handbook_private/data/805/805-6804/pdf/

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