Dell PowerEdge SC 430 - Manual (Page 56)

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
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 .
l Two power-supply cables from the POWER P1 and POWER P2 connectors
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.