Dell Vostro 3020 Tower Desktop Service Manual - Page 4

Installing the wireless card...34 Coin-cell battery...35 Removing the coin-cell battery...35 Installing the coin-cell battery...36 Antenna modules...36 Removing the antenna modules...36 Installing the antenna modules...38 Media-card reader...39 Removing the media-card reader...39 Installing the media-card reader...40 Power-supply unit...41 Removing the power-supply unit...41 Installing the power-supply unit...43 Fan shroud...44 Removing the fan shroud...44 Installing the fan shroud...45 Processor fan and heat-sink assembly...46 Removing the processor fan and heat-sink assembly 46 Installing the processor fan and heat-sink assembly 47 Processor...48 Removing the processor...48 Installing the processor...49 System board...50 Removing the system board...50 Installing the system board...53 Chapter 3: Drivers and downloads 58 Chapter 4: System setup...59 BIOS overview...59 Entering BIOS setup program...59 Navigation keys...59 Boot Sequence...60 One time boot menu...60 System setup options...60 System and setup password...70 Assigning a system setup password...70 Deleting or changing an existing system setup password 71 Real Time Clock (RTC) reset...71 Clearing BIOS (System Setup) and System passwords 72 Updating the BIOS...72 Updating the BIOS in Windows...72 Updating the BIOS using the USB drive in Windows 72 Updating the BIOS from the F12 One-Time boot menu 73 Chapter 5: Troubleshooting...74 Locate the Service Tag or Express Service Code of your Dell computer 74 SupportAssist diagnostics...74 System diagnostic lights...74 4 Contents