How to Replace a Sun Enterprise 220R and Sun Enterprise 420R System Board:ATR:1367:1

Asset ID:	1-71-1307882.1
Update Date:	2017-11-30
Keywords:

Solution Type Technical Instruction Sure

Solution 1307882.1 : How to Replace a Sun Enterprise 220R and Sun Enterprise 420R System Board:ATR:1367:1

Applies to:

Sun Enterprise 420R Server - Version Not Applicable and later
Sun Enterprise 220R Server - Version Not Applicable and later
Information in this document applies to any platform.

Goal

How to replace a 220R and 420R System Board

Solution

DISPATCH INSTRUCTIONS

WHAT SKILLS DOES THE ENGINEER NEED:(IS A SITE ENGINEER AVAILABLE?)

220R / 420R Product Training

TIME ESTIMATE: 60 minutes

TASK COMPLEXITY: 1

FIELD ENGINEER INSTRUCTIONS

PROBLEM OVERVIEW:

Complete system board failure or replacement of degraded system board.

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

The system will have to be powered off for replacement of system board.

If the system is still able to run an operating environment, have customer perform graceful shutdown then power off the system.

WHAT ACTION DOES THE ENGINEER NEED TO TAKE:

Before you Begin:

Caution – Use an antistatic mat when working with the main logic board. An antistatic mat provides the cushioning required to protect the board, to prevent the main logic board from flexing, and to provide antistatic protection.

Caution – Perform this procedure on a workbench. Sun Microsystems does not support changing the main logic board while the system is installed in a rack.

The NVRAM/TOD module contains the system host identification (ID) and Ethernet address. You can migrate your NVRAM/TOD module from your old board to preserve your host ID and Ethernet address. However, if you are replacing the NVRAM/TOD module and want to retain the same host ID and Ethernet address on the new main logic board, consult your authorized Sun sales representative or service provider.

Before you remove the main logic board, you must remove all removable components from it. You can then transfer the components to the new main logic board after you install it.

Complete these tasks to remove the necessary components:

- Label and disconnect all cables

- Remove the System From the Rack

- Remove the System Cover

- 420R Only: Remove the DC-to-DC Converter

- 420R Only: Remove Memory Riser Assembly

- Remove all Memory Modules

- Remove any PCI Cards (write down the location of PCI Cards and Slot Number)

- Avoid electrostatic discharge when handling components

- Remove the NVRAM/TOD Module

- Remove any CPU Modules

- Remove Air Guide

- Remove CPU Card Cage Assembly

Caution – Do not attempt to remove components from the main logic board after it has been removed from the system. Doing so can damage the main logic board.

How to Remove a 220R System Board:

1. Disconnect the following internal cables from the main logic board.

Press the tab on the cable connector to detach each cable.

a. Disconnect the main power cables from connectors J2902 and J2903.
b. Disconnect the CPU power sense cable from connector J2901.
c. Disconnect the UltraSCSI data cable from connector J1801.

2. Remove the three screws securing the main logic board to the back panel.
- Small arrows on the back panel point to the screws you must loosen.

3. Slide the main logic board away from the back panel until it clears the notched hold-down tabs.

4. 4. Lift the main logic board out of the system.

5. Place the main logic board on an antistatic mat.

6. If you are replacing this main logic board, note the serial port and flash PROM jumper settings

How to Install a 220R System Board:

Caution – Perform this procedure on a workbench. Sun Microsystems does not support changing the main logic board while the system is installed in a rack.

Caution – Do not attempt to install components on the main logic board while it is outside the system. Doing so can damage the main logic board.

1. Remove the main logic board from its antistatic packaging and place it on an antistatic mat.

Caution – Handle the main logic board by the back panel or edges only.

2. Set the jumper settings on the replacement main logic board so that they match the jumper settings on the original main logic board.

3. Position the replacement main logic board in the chassis.
- Align the notches on the sides of the board with the corresponding tabs on the chassis

4. Slide the main logic board toward the back of the system.
- Ensure that each connector on the main logic board slides through the corresponding cutout in the chassis back panel.

5. Replace the three screws securing the main logic board to the system back panel.

6. Connect the following internal cables to the main logic board.

The connectors are keyed to connect in only one way.

a. Connect the main power cables to connectors J2902 and J2903.
b. Connect the CPU power sense cable to connector J2901.
c. Connect the UltraSCSI data cable to connector J1801.

How to Remove a 420R System Board:

1. Disconnect the following internal cables from the main logic board.

Press the tab on the cable connector to detach each cable.

a. Disconnect the main power cable from connector J4107.
b. Disconnect the CPU power sense cable from connector J4106.
c. Disconnect the UltraSCSI data cable from connector J2101.
d. Disconnect the control cable from connector J4111.

2. Remove the three screws securing the main logic board to the system back panel.
- Small arrows on the back panel point to the screws you must loosen.

3. Slide the main logic board away from the back panel until it is free.

4. Lift the main logic board out of the system.

5. Place the main logic board on an antistatic mat.

6. If you are replacing this main logic board, note the serial port and flash PROM jumper settings.

How to Install a 420R System Board: