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Damage due to servicing that is not authorized by Dell™ is not covered by your warranty. Removing the Coin-Cell Battery Record all the screens in system setup (see “System Setup” on page 1. 107) so that you can restore the correct settings after the new battery has been installed. Follow the instructions in “Before You Begin” on page 2. 6. Remove the left side-panel (see “Removing the Left Side-Panel“ on page 3. 11). Open the PCI shroud (see “Opening the PCI Shroud“ on page 4. 18). Remove any PCI-Express cards (see “Removing the PCI-Express Card(s)” on 5. page 32). Locate the battery socket (see “System Board Components” on page 6. 14). CAUTION: If you pry the battery out of its socket with a blunt object, be careful not to touch the system board with the object. Ensure that the object is inserted between the battery and the socket before you attempt to pry out the battery. Otherwise, you may damage the system board by prying off the socket or by breaking circuit traces on the system board. Press the battery release lever to remove the battery.7. 1 1 battery release lever Replacing the Coin-Cell Battery Follow the instructions in “Before You Begin” on page 1. 6. Insert the new battery (CR2032) into the socket with the side labeled “+” 2. facing up, and press the battery into place. Replace the PCI-Express cards (see “Replacing the PCI-Express Card(s)” on 3. page 33). Close the PCI shroud (see “Closing the PCI Shroud“ on page 4. 18). Replace the left side-panel (see “Replacing the Left Side-Panel“ on page 5. 11). Connect your computer and devices to electrical outlets and then turn 6. them on. Enter system setup (see “Entering System Setup” on page 7. 107) and restore the settings you recorded before removing the battery. Removing the Theater-Lighting Batteries Follow the instructions in “Before You Begin” on page 1. 6. Remove the left side-panel (see “Removing the Left Side-Panel“ on page 2. 11). Open the PCI shroud (see “Opening the PCI Shroud“ on page 3. 18). Remove the drive-bay shroud (see “Removing the Drive-Bay Shroud” on 4. page 19). Turn the drive-bay shroud over.5. Open the theater-lighting battery compartment door.6. Remove the two batteries (AA rechargeable) from the theater-lighting 7. battery compartment. 12 1 theater-lighting battery-compartment door 2 drive-bay shroud Replacing the Theater-Lighting Batteries Follow the instructions in “Before You Begin” on page 1. 6. Insert the two new batteries (AA rechargeable) in the theater-lighting 2. battery compartment. Close the theater-lighting battery-compartment door. 3. Replace the drive-bay shroud (see “Replacing the Drive-Bay Shroud” on 4. page 19). Close the PCI shroud (see “Closing the PCI Shroud“ on page 5. 18). Replace the left side-panel (see “Replacing the Left Side-Panel“ on page 6. 11). Connect your computer and devices to electrical outlets, and then turn 7. them on. CHAPTER 11: SYSTEM BOARD CHAPTER 13: SYSTEM BOARD System Board WARNING: Before working inside your computer, read the safety information that shipped with your computer. For additional safety best practices information, see the Regulatory Compliance Homepage at WARNING: Do not operate your computer with any cover(s) (including computer covers, bezels, filler brackets, front-panel inserts, etc.) removed. WARNING: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the side panel(s). CAUTION: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is not authorized by Dell™ is not covered by your warranty. Removing the System Board Record all the screens in system setup (see “System Setup” on page 1. 107) so that you can restore the correct settings. Follow the instructions in “Before You Begin” on page 2. 6. Remove the left side-panel (see “Removing the Left Side-Panel“ on page 3. 11). Open the PCI shroud (see “Opening the PCI Shroud“ on page 4. 18). Remove any PCI-Express cards (see “Removing the PCI-Express Card(s)” on 5. page 32). WARNING: Despite having a plastic shield, the processor liquid-cooling assembly may be very hot during normal operation. Ensure that it has had sufficient time to cool before you touch it. Remove the processor liquid-cooling assembly (see “Removing the 6. Processor Liquid-Cooling Assembly” on page 48). Remove the processor (see “Removing the Processor” on page 7. 52). Remove the memory modules (see “Removing the Memory Module(s)” on 8. page 37). CAUTION: Carefully note the routing and location of each cable before you disconnect it, so that you are sure to re-route the cables correctly. An incorrectly routed or a disconnected cable could lead to computer problems. 12 1 latch 2 screws (2) Disconnect all cables from the system board. 9. Remove the two screws that secure the system board to the chassis.10. Slide the system board towards the front of the chassis to disengage it from 11. the latches that secure i...