User manual DELL DIMENSION E520

[. . . ] DellTM DimensionTM E520 Owner's Manual Service Tag cover latch release CD or DVD eject button CD or DVD activity light FlexBay for optional floppy drive or Media Card Reader microphone connector headphone connector diagnostic lights hard-drive activity light power button/ power activity light USB 2. 0 connectors (2) power connector sound connectors (integrated) (6) optional VGA video connector (integrated) network adapter USB 2. 0 connectors (6) PCI Express graphics card card slots for PCI Express x16 (1), PCI (2), PCI Express x1 (1) Model DCSM w w w. c o m Notes, Notices, and Cautions NOTE: A NOTE indicates important information that helps you make better use of your computer. NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem. CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death. If you purchased a DellTM n Series computer, any references in this document to Microsoft® Windows® operating systems are not applicable. Abbreviations and Acronyms For a complete list of abbreviations and acronyms, see the "Glossary" on page 147. ____________________ Information in this document is subject to change without notice. [. . . ] On computers with a sound card, use the connector on the card. Use the pink connector to attach a personal computer microphone for voice or musical input into a sound or telephony program. On computers with a sound card, the microphone connector is on the card. Use the silver connector to provide enhanced surround audio for computers with 7. 1 speakers. On computers with a sound card, the microphone connector is on the card. Use the yellow connector to attach a speaker to a Low Frequency Effects (LFE) audio channel. If your monitor has a VGA connector, plug it into the VGA connector on the computer. Use the back USB connectors for devices that typically remain connected, such as printers and keyboards. It is recommended that you use the front USB connectors for devices that you connect occasionally, such as joysticks or cameras. 6 line-out connector 7 micro-phone 8 side surround connector 9 10 11 center/subwoofer connector optional VGA video connector USB 2. 0 connectors (6) Removing the Computer Cover CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before removing the cover. 1 Follow the procedures in "Before You Begin" on page 59. NOTICE: Ensure that sufficient space exists to support the removed cover--at least 30 cm (1 ft) of desk top space. NOTICE: Ensure that you are working on a level, protected surface to avoid scratching either the computer or the surface on which it is resting. 2 Lay your computer on its side with the computer cover facing up. 3 Pull back the cover latch release located on the top panel. Removing and Installing Parts 65 1 2 3 4 1 4 cover latch release bottom hinges 2 computer cover 3 back of computer 4 Locate the three hinge tabs on the bottom edge of the computer. 5 Grip the sides of the computer cover and pivot the cover up, using the bottom hinges as leverage points. 6 Release the cover from the hinge tabs and set it aside in a secure location. 66 Removing and Installing Parts Inside View of Your Computer CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. 3 4 2 *1 5 *May not be present on all computers. 1 4 floppy drive system board 2 5 CD or DVD drive hard drive 3 power supply Removing and Installing Parts 67 System Board Components processor fan connector (CPUFAN) air-temperature sensor connector (THRM) processor connector (CPU) power connector (12V) memory module connectors (2, 4) floppy drive connector (FLOPPY) PCI connector (SLOT3) PCI connectors (SLOT4) memory module connectors (1, 3) battery socket (BATTERY) SATA connector (SATA1) SATA connector (SATA0) front-panel connector (FRNTPANEL) SATA connector (SATA4) SATA connector (SATA5) power connector (POWER12V) optional video connector (VGA) Media Card Reader connector (USBINT) line-in-, line-out-, microphone-, side surround-, center-, and LFE connectors PCI Express x16 connector (SLOT1) PCI Express x1 connector (SLOT2) clear CMOS jumper (CLRCMOS) password jumper (CLRPSWD) network connector (NIC) and USB connectors (2) (USB2) USB connectors (4) (USBBACK) 68 Removing and Installing Parts Memory You can increase your computer memory by installing memory modules on the system board. For additional information on the type of memory supported by your computer, see "Memory" on page 109. DDR2 Memory Overview DDR2 memory modules should be installed in pairs of matched memory size, speed, and technology. If the DDR2 memory modules are not installed in matched pairs, the computer will continue to operate, but with a slight reduction in performance. See the label on the module to determine the module's capacity. NOTE: Always install DDR2 memory modules in the order indicated on the system board. The recommended memory configurations are: ­ or ­ A pair of matched memory modules installed in DIMM connectors 1 and 2 and another matched pair installed in DIMM connectors 3 and 4 A pair of matched memory modules installed in DIMM connectors 1 and 2 NOTICE: Do not install ECC or buffered memory modules. Only unbuffered, non-ECC memory is supported. [. . . ] If the floppy disk is left in the drive when the computer is shut down and then turned on, the computer is infected when it reads the boot sectors of the floppy disk expecting to find the operating system. If the computer is infected, the boot virus may replicate itself onto all the floppy disks that are read or written in that computer until the virus is eradicated. V -- volt -- The measurement of electric potential or electromotive force. One V appears across a resistance of 1 ohm when a current of 1 ampere flows through that resistance. write-protected -- Files or media that cannot be changed. [. . . ]