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Service Only Parts Replacement Procedures

Dell™ PowerEdge™ SC430 Systems Installation and Troubleshooting Guide

  Before You Begin

  Recommended Tools

  Removing and Replacing the Bezel

  I/O Panel

  Chassis Intrusion Switch

  System Board

Before You Begin

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

Recommended Tools

You may need the following items to perform the procedures in this section:

• #2 Phillips screwdriver
  
  
• Wrist grounding strap
  
  

Removing and Replacing the Bezel

Removing the Bezel

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

1. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
   
   
2. Open the system. See "Opening the System" in "Troubleshooting Your System."
   
   
3. Remove the processor heat sink and shroud assembly. See "Removing the Processor" in "Installing System Options."
   
   
4. Remove the large processor cooling fan. See "Replacing the Cooling Fans" in "Installing System Options."
   
   
5. Remove the I/O panel as explained in step 6 through step 8 in "Removing the I/O Panel."
   
   
6. Remove the three bezel release screws. See Figure 7-1.
   
   
7. Slide the bezel toward the top of the system chassis, then lift outward.
   
   

Figure 7-1. Removing the Bezel

Replacing the Bezel

1. Align the bezel with the chassis frame and slide it down into position.
   
   
2. Attach the three bezel release screws to secure the bezel to the system chassis. See Figure 7-1.
   
   
3. Reinstall the I/O panel as explained in step 6 through step 8 in "Replacing the I/O Panel."
   
   
4. Reinstall the processor cooling fan. See "Replacing the Cooling Fans" in "Installing System Options."
   
   
5. Reinstall the processor heat sink and shroud assembly. See "Replacing the Processor" in "Installing System Options."
   
   
6. Close the system. See "Closing the System" in "Troubleshooting Your System."
   
   
7. Reconnect the system to the electrical outlet, and turn on the system.
   
   

I/O Panel

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

Removing the I/O Panel

1. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
   
   
2. Remove the system cover. See "Opening the System" in "Troubleshooting Your System."
   
   
3. Remove the heat sink and shroud assembly. See "Removing the Processor" in "Installing System Options."
   
   
4. Remove the large processor cooling fan. See "Replacing the Cooling Fans" in "Installing System Options."
   
   
5. Remove the front bezel. See "Removing and Replacing the Bezel."
   
   
6. Disconnect the I/O panel ribbon cable from the I/O panel connector by pulling the yellow cable loop.
   
   
7. Remove the mounting screw holding the I/O panel bracket assembly to the front chassis. See Figure 7-2.
   
   
8. Lift the I/O panel out of the system. See Figure 7-2.
   
   

Figure 7-2. I/O-Panel Components

Replacing the I/O Panel

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

1. If system is powered on, turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
   
   
2. Remove the system cover. See "Opening the System" in "Troubleshooting Your System."
   
   
3. Remove the heat sink and shroud assembly. See "Removing the Processor" in "Installing System Options."
   
   
4. Remove the large processor cooling fan. See "Replacing the Cooling Fans" in "Installing System Options."
   
   
5. Remove the front bezel. See "Removing and Replacing the Bezel."
   
   
6. Fit the I/O panel bracket assembly into the holding tab on the front of the chassis. See Figure 7-2.
   
   
7. Secure the I/O panel bracket assembly by installing the mounting screw. See Figure 7-2.
   
   
8. Connect the I/O panel ribbon cable to the new I/O panel connector.
   
   
9. Reinstall the large processor cooling fan. See "Replacing the Cooling Fans" in "Installing System Options."
   
   
10. Reinstall the processor heat sink and shroud assembly. See "Replacing the Processor" in "Installing System Options."
    
    

NOTE: To prevent damaging the processor, clean the heat sink to remove any thermal grease and then apply fresh thermal grease to the processor before installing the heat sink.

11. Close the system. See "Closing the System" in "Troubleshooting Your System."
    
    
12. Reconnect the system to the electrical outlet, and turn on the system.
    
    

Chassis Intrusion Switch

Removing the Chassis Intrusion Switch

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

1. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
   
   
2. Open the system. See "Opening the System" in "Troubleshooting Your System."
   
   
3. Disconnect the chassis intrusion switch cable from the INTRUDER connector on the system board. See Figure 7-3.
   
   
4. Slide the chassis intrusion switch out of the securing bracket notch. See Figure 7-3.
   
   

Figure 7-3. Removing and Installing the Chassis Intrusion Switch

5. Remove the switch and its attached cable from the system.
   
   

Installing the Chassis Intrusion Switch

1. Align the chassis intrusion switch with the securing bracket notch. See Figure 7-3.
   
   
2. Slide the switch into the securing bracket notch.
   
   
3. Connect the switch cable to the INTRUDER connector on the system board.
   
   
4. Close the system. See "Closing the System" in "Troubleshooting Your System."
   
   
5. Reconnect the system to the electrical outlet, and turn on the system.
   
   

System Board

CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. Before performing any procedure, see your Product Information Guide for complete information about safety precautions, working inside the computer and protecting against electrostatic discharge.

CAUTION: The heat sink can get hot during operation. To avoid burns, ensure that the system has sufficient time to cool before removing the system board.

The system board and system board tray are removed and replaced as a single assembly.

Removing the System Board

1. Turn off the system and attached peripherals, and disconnect the system from the electrical outlet.
   
   
2. Open the system. See "Opening the System" in "Troubleshooting Your System."
   
   
3. Disconnect the following cables from the system board. See Figure A-3.
   
   
   • Two power-supply cables from the POWER P1 and POWER P2 connectors
     
     
   • If applicable, diskette data cable from the FLOPPY connector
     
     
   • I/O panel cable from the FRONT PANEL connector
     
     
   • 5.25-inch device data cable from the IDE connector
     
     
   • Processor cooling fan cable from the FAN_CPU connector
     
     
   • Card cage cooling fan cable from the CARD CAGE COOLING FAN connector
     
     
   • If applicable, SATA hard-drive data cable(s) from the SATA connector(s)
     
     
4. Remove all expansion cards and any attached cables. See "Removing an Expansion Card" in "Installing System Options."
   
   
5. Remove all memory modules. See "Removing a Memory Module" in "Installing System Options."
   
   

NOTE: Record the memory-module socket locations to ensure proper reinstallation of the memory modules.

CAUTION: The processor and heat sink can become extremely hot. Allow sufficient time for the processor and heat sink to cool before handling.

NOTICE: To prevent damaging the processor, do not pry the heat sink off of the processor.

6. Remove the processor. See "Removing the Processor" in "Installing System Options."
   
   
7. Using a #2 Phillips screwdriver, remove the eight system board mounting screws that secure the system board to the chassis. See Figure 7-4.
   
   
8. Using a #2 Phillips screwdriver, remove the two processor heat sink pivot mount screws and remove the pivot mount from the system board. See Figure 7-4.
   
   

Figure 7-4. System Board Mounting Points

9. Carefully route any loose cables away from the edges of the system board.
   
   
10. Gently slide the system board toward the front of the system, then lift the system board up and out of the chassis.
    
    
11. Place the system board tray on a flat, nonconductive surface.
    
    

Installing the System Board

1. Lower the system board into the chassis, aligning the I/O ports on the system board with the I/O connector openings on the back panel of the chassis.
   
   
2. Using a #2 Phillips screwdriver, install the eight screws on the system board that secure it to the chassis. See Figure 7-4.
   
   
3. Using a #2 Phillips screwdriver, attach the processor heat sink pivot mount to the system board.
   
   

NOTICE: To prevent damaging the processor, clean the heat sink to remove any thermal grease and then apply fresh thermal grease to the processor before installing the heat sink.

4. Install the processor. See "Replacing the Processor" in "Installing System Options."
   
   
5. Install the memory modules in the same sockets from which they were removed. See "Installing a Memory Module" in "Installing System Options."
   
   
6. Install the expansion cards and connect any cables. See "Installing an Expansion Card" in "Installing System Options."
   
   
7. Connect the following cables that you removed in "Removing the System Board." See Figure A-3.
   
   
   • Two power-supply cables to the POWER P1 and POWER P2 connectors
     
     
   • If applicable, diskette data cable to the FLOPPY connector
     
     
   • I/O panel cable to the FRONT PANEL connector
     
     
   • 5.25-inch device data cable to the IDE connector
     
     
   • Processor cooling fan cable to the FAN_CPU connector
     
     
   • Card cage cooling fan cable to the CARD CAGE COOLING FAN connector
     
     
   • If applicable, SATA hard-drive data cable(s) to the SATA connector(s)
     
     
8. Close the system. See "Closing the System" in "Troubleshooting Your System."
   
   
9. Reconnect the system to the electrical outlet, and turn on the system.
   
   

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