Installing System Components 919 Enter the System Setup program to confirm that the battery is operatingproperly. See "Entering the System Setup Program" on page 26.10 Enter the correct time and date in the System Setup program's Time andDate fields.11 Exit the System Setup program.Control Panel AssemblyRemoving the Control Panel AssemblyCAUTION: Many repairs may only be done by a certified service technician. Youshould only perform troubleshooting and simple repairs as authorized in yourproduct documentation, or as directed by the online or telephone service andsupport team. Damage due to servicing that is not authorized by Dell is not coveredby your warranty. Read and follow the safety instructions that came with theproduct.1 If installed, remove the front bezel. See "Removing the Front Bezel" onpage 49.2 Turn off the system and attached peripherals, and disconnect the systemfrom the electrical outlet and peripherals.3 Open the system. See "Opening the System" on page 50.4 Remove hard drive 0. See "Removing a 3.5-Inch Hard Drive" on page 56.5 Remove the internal USB key (if present). See "Internal USB Memory Key"on page 65.6 Disconnect the control panel cable at back of the control panel board:CAUTION: Do not pull on the cable to unseat the connector. Doing so can damagethe cable.a Press the metal tabs on the ends of the cable connector.b Gently work the connector out of the socket.c Remove the USB connector cable from the control panel.7 Remove the four screws that secure the control panel board to the chassisand remove the board.