Contents1 Working on your computer.............................................................................................................................6Safety instructions.............................................................................................................................................................6Before working inside your computer............................................................................................................................. 6Turning off your computer................................................................................................................................................7Turning off your computer — Windows 10.............................................................................................................. 7After working inside your computer................................................................................................................................ 72 Removing and installing components............................................................................................................. 8Recommended tools..........................................................................................................................................................8Battery.................................................................................................................................................................................8Removing the battery..................................................................................................................................................8Installing the battery.................................................................................................................................................... 9Optical drive........................................................................................................................................................................9Removing the optical drive ........................................................................................................................................ 9Removing the optical drive bracket......................................................................................................................... 10Installing the optical drive bracket.............................................................................................................................11Installing the optical drive...........................................................................................................................................11Keyboard............................................................................................................................................................................ 11Removing the keyboard..............................................................................................................................................11Installing the keyboard............................................................................................................................................... 13Base cover.........................................................................................................................................................................13Removing the base cover..........................................................................................................................................13Installing the base cover............................................................................................................................................ 16Hard drive.......................................................................................................................................................................... 16Removing the hard drive assembly.......................................................................................................................... 16Removing the hard drive from the hard drive bracket.......................................................................................... 17Installing the hard drive into the hard drive bracket.............................................................................................. 18Installing the hard drive assembly.............................................................................................................................18WLAN card........................................................................................................................................................................ 18Removing the WLAN card.........................................................................................................................................18Installing the WLAN card........................................................................................................................................... 19Memory module............................................................................................................................................................... 20Removing the memory module................................................................................................................................ 20Installing the memory module...................................................................................................................................20Coin cell battery................................................................................................................................................................21Removing the coin cell battery................................................................................................................................. 21Installing the coin cell battery...................................................................................................................................22Power button board........................................................................................................................................................ 22Removing the power button board......................................................................................................................... 22Installing the power button board............................................................................................................................23Heat sink........................................................................................................................................................................... 23Removing the heat sink ........................................................................................................................................... 23Installing the heat sink ..............................................................................................................................................24Contents 3