C H A P T E R  4

Removing and Replacing Rotating Service Module Components


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Caution - The procedures in this section are for qualified service engineers only.





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Caution - Before carrying out any of the procedures in this chapter, read Avoiding Electrostatic Dischargeand wear a properly grounded antistatic strap.





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Caution - Printed circuit boards and hard drives contain electronic components that are extremely sensitive to static electricity. Ordinary amounts of static from your clothes or the work environment can destroy components. Do not touch the components or any metal parts without taking proper antistatic precautions.





Note - Illustrations may contain optional components that are not available on all standard configurations of the Netra 240 server.



This chapter provides removal and replacement procedures for the following components:


Alarm Board

The alarm board is an LED card with four alarm indicators that is mounted on the rotating service module. The user can reset or apply various applications to the system by configuring the alarm indicator states.

Removing the Alarm Board

1. Power off the server.

See Powering Off the Server.

2. Remove the server cover.

See Removing the Server Cover.

3. Open the rotating service module.

See Opening the Rotating Service Module.

4. Ensure that the server is properly grounded.

See Avoiding Electrostatic Discharge.

5. Push back the securing tabs and detach the ribbon cable and the cable to the SCSI board (FIGURE 4-1).

6. Using a No. 2 Phillips screwdriver, loosen the green captive screw that secures the alarm board to the rotating service module (FIGURE 4-1).


FIGURE 4-1 Removing the Alarm Board

This figure shows the alarm board being removed. It also shows an enlarged view of the securing tabs and cables to the alarm board.


7. Lift the alarm board up and out of the server.

Installing the Alarm Board

1. Place the alarm board into position in the rotating service module (FIGURE 4-1).

2. Tighten the captive screw to secure the alarm board to the rotating service module (FIGURE 4-1).

3. Connect the ribbon cable and the cable to the SCSI board to the alarm board and set the securing tabs (FIGURE 4-1).

4. Close the rotating service module.

See Closing the Rotating Service Module.

5. Install the server cover.

See Installing the Server Cover.

6. Power on the server.

See Powering On the Server.


Front Fan Assembly Tray

The front fan assembly tray is located behind the rotating service module. The front fan assembly tray contains two fans, F2 and F3. The entire front fan assembly tray should be replaced if one of these fans fail.

Removing the Front Fan Assembly Tray

1. Power off the server.

See Powering Off the Server.

2. Remove the server cover.

See Removing the Server Cover.

3. Open the rotating service module.

See Opening the Rotating Service Module.

4. Ensure that the server is properly grounded.

See Avoiding Electrostatic Discharge.

5. Detach the two front fan assembly cables from the system board connectors (FIGURE 4-2).


FIGURE 4-2 Removing the Front Fan Assembly Tray

This figure shows the front fan assembly tray being removed. It also shows a magnified view of how the cables to the system board connectors must be routed.


6. Using a No. 2 Phillips screwdriver, loosen the green captive screw that secures the front fan assembly tray to the rotating service module (FIGURE 4-2).

7. Lift the front fan assembly tray straight up and remove it from the server (FIGURE 4-2).

Installing the Front Fan Assembly Tray

1. Place the front fan assembly tray into position in the rotating service module (FIGURE 4-2).

2. Tighten the captive screw to secure the front fan assembly tray to the rotating service module (FIGURE 4-2).

3. Connect the two cables to the system board and route it behind the post (FIGURE 4-2).



Note - Refer to the chassis label for an illustration of the correct routing of the cables.



4. Close the rotating service module.

See Closing the Rotating Service Module.

5. Install the server cover.

See Installing the Server Cover.

6. Power on the server.

See Powering On the Server.


SCSI Interface Board

The SCSI interface board houses the two hard drives.

Removing the SCSI Interface Board

1. Power off the server.

See Powering Off the Server.

2. Grip the bezel at the two finger holds and rotate it down to its open position (FIGURE 2-4).

3. Make a note of which drive bay holds each hard drive.

You remove the hard drives in the next step. However, you want to install the hard drives back into the same slots that you removed them from at the end of this procedure.

4. Remove the hard drives from the drive bays.

See Removing a Hard Drive.

5. Remove the server cover.

See Removing the Server Cover.

6. Open the rotating service module.

See Opening the Rotating Service Module.

7. Ensure that the server is properly grounded.

See Avoiding Electrostatic Discharge.

8. Using a No. 2 Phillips screwdriver, loosen the green captive screw on the top of the SCSI interface board (FIGURE 4-3).


FIGURE 4-3 Removing the SCSI Interface Board

This figure shows the SCSI interface board being removed and magnified views of the cables that must be detached.


9. Detach the bezel cables, the SCSI interface cable, the DVD power/I2C interface ribbon cable, the alarm board cable, and the SCSI interface board power cable from the SCSI interface board (FIGURE 4-3).

10. When standing in the front of the server, slide the SCSI interface board to the left and then up to remove it from the rotating service module.

Installing the SCSI Interface Board

1. When standing in the front of the server, place the SCSI interface board into position in the rotating service module (FIGURE 4-3).

Align the six tabs on the SCSI interface board, then slide the assembly down and to the right to lock into position.

2. Tighten the captive screw to secure the board to the rotating service module (FIGURE 4-3).

3. Attach and route the bezel cables, the SCSI interface cable, the DVD power/I2C interface ribbon cable, the alarm board cable, and the SCSI interface board power cable to the SCSI interface board (FIGURE 4-3).

4. Close the rotating service module.

See Closing the Rotating Service Module.

5. Install the server cover.

See Installing the Server Cover.

6. Grip the bezel at the two finger holds and rotate it down to its open position (FIGURE 2-4).

7. Install the hard drives back into the drive bays.

See Installing a Hard Drive. Refer to the notes that you took earlier in the procedure to install the hard drives back into the proper bays.

8. Power on the server.

See Powering On the Server.


System Configuration Card Reader Cluster

The system configuration card reader cluster includes the DVD drive bay, the rotary switch, and the system configuration card bay.

Removing the System Configuration Card Reader Cluster

1. Power off the server.

See Powering Off the Server.

2. Grip the bezel at the two finger holds and rotate it down to its open position (FIGURE 2-4).

3. Remove the system configuration card from the system configuration card reader.

See Removing a System Configuration Card.

4. Remove the DVD-ROM drive from the server.

See Removing a DVD Drive.

5. Remove the server cover.

See Removing the Server Cover.

6. Open the rotating service module.

See Opening the Rotating Service Module.

7. Ensure that the server is properly grounded.

See Avoiding Electrostatic Discharge.

8. Lift the SCSI/IDE cable clamp out of the way (FIGURE 4-4).

The clamp has a green cap that is attached to the chassis, and holds the SCSI interface cable and the IDE cable.


FIGURE 4-4 Lifting the SCSI/IDE Cable Clamp

Figure showing how to lift the SCSI/IDC cable clamp.


9. Unplug the cables in the sequence below (FIGURE 4-5 and FIGURE 4-6):

a. Unplug the SCSI interface board cable from the system board and remove it out of the way.


FIGURE 4-5 Removing the SCSI Interface Board Cable and the IDE Cable From the System Board

This figure shows the location on the system board from where the SCSI interface board cable and the IDE cable must be removed.


b. Unplug the IDE cable from the system board and leave the cable attached at the other end (FIGURE 4-5).

c. Unplug but do not remove the DVD power/I2C interface ribbon cable from the SCSI interface board.

d. Unplug the bezel cables from the SCSI interface board and move them out of the way.

10. Using a No. 2 Phillips screwdriver, loosen the two green captive screws at the front of the system configuration card reader cluster (FIGURE 4-6).

11. Grasp the system configuration card reader cluster on the two green grip points, lift up and remove (FIGURE 4-6).

The grip points are visible when viewed from the top of the system configuration card reader cluster with the rotating service module open.


FIGURE 4-6 Removing the System Configuration Card Reader Cluster

This figure shows the system configuration card reader cluster being removed. It also provides additional cable details.


Installing the System Configuration Card Reader Cluster

1. Place the system configuration card reader cluster in position in the rotating service module (FIGURE 4-6).

Ensure that the four tabs are properly inserted into their locations.

2. Using a No. 2 Phillips screwdriver, tighten the two captive screws to secure the cluster to the rotating service module (FIGURE 4-6).

3. Plug the cables back in:

a. Plug the IDE cable into the system board.

b. Plug the bezel cables into the SCSI interface board.

c. Plug the DVD power/I2C interface ribbon cable into the SCSI interface board.

d. Plug the SCSI interface cable.

4. Press the SCSI/IDE cable clamp back down to secure the SCSI interface and IDE cables.

The cable clamp is attached to the chassis and has a green cap. See FIGURE 4-4 for the location of this clamp.

5. Close the rotating service module.

See Closing the Rotating Service Module.

6. Install the server cover.

See Installing the Server Cover.

7. Grip the bezel at the two finger holds and rotate it down to its open position (FIGURE 2-4).

8. Install the DVD drive back into the server.

See Installing a DVD Drive.

9. Install the system configuration card back into the system configuration card reader.

See Inserting a System Configuration Card.

10. Close the bezel door.

11. Power on the server.

See Powering On the Server.