User manual DELL DIMENSION 4600C

[. . . ] DellTM DimensionTM 4600C front door power button hard-drive light breakaway hinge IEEE 1394 connector* CD or DVD drive light PC Card connectors (2)** breakaway hinge USB 2. 0 connectors (2) headphone connector * On computers with integrated IEEE 1394 connectors. On computers with integrated PC Card connectors. ** SPDIF-out connector integrated video connector diagnostic lights (4) keyboard connector center/LFE connector microphone connector USB 2. 0 connectors (6) parallel connector mouse connector surround connector line-out connector line-in connector network adapter connector optional video card connector (see the setup diagram) modem connectors (2) IEEE 1394 connector power connector voltage selection switch 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. Abbreviations and Acronyms For a complete list of abbreviations and acronyms, see the Tell Me How help file. [. . . ] MOVE THE MONITOR AWAY FROM EXTERNAL POWER SOURCES -- Fans, fluorescent lights, halogen lamps, and other electrical devices can cause the screen image to appear "shaky. " Turn off nearby devices to check for interference. ROTATE THE MONITOR TO FACE A DIFFERENT DIRECTION -- Eliminate sunlight glare, which can cause poor picture quality. ADJUST THE WINDOWS® DISPLAY SETTINGS -- 1 Click the Start button and click Control Panel. RESTORE THE RECOMMENDED SETTINGS -- Restore the original resolution and refresh rate settings. To access help files, see page 25. Solving Problems 41 www. dell. com | support. dell. com 42 Solving Problems Advanced Troubleshooting Diagnostic Lights To help you troubleshoot a problem, your computer is equipped with four lights on the back panel labeled "A, " "B, " "C, " and "D" (see page 57). If the computer malfunctions, the color and sequence of the lights identify the problem. CAUTION: Before you begin any of the procedures in this section, follow the safety instructions in the Product Information Guide. Light Pattern Problem Description Suggested Resolution ABCD = yellow = green = off The computer is in a normal off Verify that the computer is plugged condition or a possible pre-BIOS failure into a working electrical outlet and has occurred. that you have pressed the power button. Advanced Troubleshooting 43 www. dell. com | support. dell. com Light Pattern Problem Description Memory modules are detected, but a memory failure has occurred. Suggested Resolution · If you have one memory module installed, reinstall it (see page 68) and restart the computer. · If you have two or more memory modules installed, remove the modules, reinstall one module see page 68), and then restart the computer. Continue until you have identified a faulty module or reinstalled all modules without error. · If available, install properly working memory of the same type into your computer (see page 68). · If the problem persists, contact Dell (see page 83). 1 Determine if a conflict exists by ABCD A possible expansion card failure has occurred. ABCD ABCD removing a card (not the video card) (see page 65) and then restarting the computer. 2 If the problem persists, reinstall the card that you removed, remove a different card, and then restart the computer. If the computer starts normally, troubleshoot the last card removed from the computer for resource conflicts (see "Resolving Software and Hardware Incompatibilities" on page 52). 4 If the problem persists, contact Dell (see page 83). = yellow = green = off 44 Advanced Troubleshooting Light Pattern Problem Description A possible video card failure has occurred. Suggested Resolution · If the computer has a video card, remove the card and reinstall it (see page 66), and restart the computer. · If the problem still exists, install a video card that you know works and restart the computer. · If the problem persists or the computer has integrated video, contact Dell (see page 83). Reseat all power and data cables and restart the computer. ABCD A possible floppy or hard drive failure has occurred. ABCD A possible USB failure has occurred. Reinstall all USB devices, check cable connections, and then restart the computer. ABCD No memory modules are detected. ABCD · Reinstall all memory modules (see page 68) and restart the computer. · To eliminate the possibility of a faulty memory connector, remove all memory modules (see page 68), reinstall one memory module (if the computer supports a single module), and then restart the computer. If the computer starts normally, move the memory module to a different connector and restart the computer. Continue until you have identified a faulty connector or reinstalled all modules without error. = yellow = green = off Advanced Troubleshooting 45 www. dell. com | support. dell. com Light Pattern Problem Description Memory modules are detected, but a memory configuration or compatibility error exists. Suggested Resolution · Ensure that there are no special memory module/memory connector placement requirements (see page 68). [. . . ] Operation of this equipment in a residential area is likely to cause harmful interference, in which case you will be required to correct the interference at your own expense. Class B This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses, and can radiate radio frequency energy and, if not installed and used in accordance with the manufacturer's instruction manual, may cause interference with radio communications. However, there is no guarantee that interference will not occur in a particular installation. [. . . ]