Removing the Chassis Intrusion Switch 1. Disconnect the chassis intrusion switch cable from the control panel on the front of the computer. Note the routing of the chassis intrusion cable as you remove it from the chassis. Chassis hooks may hold the cable in place inside the chassis. 2. Slide the chassis intrusion switch out of its slot, and remove the switch and its attached cable from the computer. Mini Tower Computer Desktop Computer 3. Slide the chassis intrusion switch into its slot and reconnect the cable to the connector on the control panel. Resetting the Chassis Intrusion Detector 1. Enter system setup by pressing during the computer's POST. NOTE: For instructions on using system setup, see the User's Guide. 2. Under the System Security tab, reset the Chassis Intrusion option by pressing the left- or right-arrow key to select Reset. Change the setting to Enabled, Enabled-Silent, or Disabled. NOTE: The default is Enabled-Silent. NOTE: If a setup password has been assigned by someone else, contact the network administrator for information on resetting the chassis intrusion detector. 3. Press to restart the computer and implement your changes. Replacing the Chassis Intrusion Switch To replace the front panel, perform the removal procedure in reverse order. Back to Contents Page Back to Contents Page Power Supply Dell Precision™ 360 Service Manual Removing the Power Supply Replacing the Power Supply CAUTION: Before performing any of the procedures in this section, follow the safety instructions in the System Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis. Removing the Power Supply 1. Disconnect the DC power cables from the system board and the drives. Note the routing of the DC power cables underneath the tabs in the computer frame as you release the tabs and remove the cables from the system board and drives. You must route these cables properly when you replace them to prevent their being pinched or crimped. 2. Remove the two screws that attach the power supply to the back of the computer frame. 3. On the mini-tower computer, press the release button located on the floor of the computer frame. Mini-Tower Computer Desktop Computer 4. Slide the power supply toward the front of the computer approximately 1 inch. 5. Lift the power supply up and out of the computer. Replacing the Power Supply 1. Slide the power supply into place. 2. Replace the two screws that secure the power supply to the back of the computer frame. 3. Reconnect the DC power cables. 4. On the desktop computer, reattach the power cables to the side of the hard drive. 5. Run the cables underneath the tabs, and press the tabs to close them over the cables. 6. Close the computer cover. NOTICE: To connect a network cable, first plug the cable into the network wall jack and then plug it into the computer. 7. Connect your computer and devices to electrical outlets, and turn them on. Back to Contents Page Back to Contents Page System Board Dell Precision™ 360 Service Manual Removing the System Board Replacing the System Board CAUTION: Before performing any of the procedures in this section, follow the safety instructions in the System Information Guide. CAUTION: To prevent static damage to components inside your computer, discharge static electricity from your body before you touch any of your computer's electronic components. You can do so by touching an unpainted metal surface on the computer chassis. NOTICE: The system board and metal tray are connected and removed as one piece. Removing the System Board 1. Remove any components that restrict access to the system board. 2. Disconnect all cables from the system board. 3. Before you remove the existing system board assembly, visually compare the replacement system board to the existing system board to make sure that you have the correct part. 1 tab 4. Pull up on the tab, slide the system board assembly toward the front of the computer, and then lift the assembly up and away. 5. Place the system board assembly that you just removed next to the replacement system board. Replacing the System Board 1. Transfer components from the existing system board to the replacement system board: a. Remove the memory modules and install them on the replacement board. CAUTION: The microprocessor package and heat-sink assembly can get hot. To avoid burns, ensure that the package and assembly have had sufficient time to cool before you touch them. b. Remove the heat-sink assembly and microprocessor from the existing system board and transfer them to the replacement system board. 2. Configure the settings of the replacement system board. 3. Set the jumpers on the replacement system board so they are identical to the ones on the existing board. NOTE: Some components and connector...
