Owner's Manual
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Dell™ Dimension™ C521 Owner's Manual FlexBay for optional floppy drive or Media Card Reader headphone connector microphone connector diagnostic lights Service Tag CD or DVD activity light CD or DVD eject button USB 2.0 connectors (2) hard drive activity light power button cover release latch card slots for PCI (1), PCI Express x1 (1) PCI Express x16 (1) Model DCNE www.dell.com | support.dell.com power connector audio connectors USB 2.0 connectors (4) network adapter VGA video connector (integrated)
Dell™ Dimension™ C521 Owner's Manual FlexBay for optional floppy drive or Media Card Reader headphone connector microphone connector diagnostic lights Service Tag CD or DVD activity light CD or DVD eject button USB 2.0 connectors (2) hard drive activity light power button cover release latch card slots for PCI (1), PCI Express x1 (1) PCI Express x16 (1) Model DCNE www.dell.com | support.dell.com power connector audio connectors USB 2.0 connectors (4) network adapter VGA video connector (integrated)
Owner's Manual
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3 Advanced Troubleshooting 47 Power Light and Diagnostic Lights 47 Power Light 47 Diagnostic Lights 48 Dell Diagnostics 50 Dell Diagnostics Main Menu 51 Drivers 52 What Is a Driver 52 Identifying Drivers 52 Reinstalling Drivers 53 Resolving Software and Hardware Incompatibilities 54 Restoring Your Operating System 54 Using Microsoft® Windows® XP System Restore 54 Using Dell™ PC Restore by Symantec...
3 Advanced Troubleshooting 47 Power Light and Diagnostic Lights 47 Power Light 47 Diagnostic Lights 48 Dell Diagnostics 50 Dell Diagnostics Main Menu 51 Drivers 52 What Is a Driver 52 Identifying Drivers 52 Reinstalling Drivers 53 Resolving Software and Hardware Incompatibilities 54 Restoring Your Operating System 54 Using Microsoft® Windows® XP System Restore 54 Using Dell™ PC Restore by Symantec...
Owner's Manual
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...musical input into a sound or telephony program. The drive light is operating. For more information on page 47. For information on using the Media Card Reader, see "Power Light and Diagnostic Lights" on booting to help you connect occasionally, such as ...printers and keyboards. Use the lights to a USB device). 3 FlexBay drive 4 CD or DVD activity light 5 CD or DVD eject button 6 microphone connector 7 headphone connector 8 diagnostic lights (4) 9 USB 2.0 ...
...musical input into a sound or telephony program. The drive light is operating. For more information on page 47. For information on using the Media Card Reader, see "Power Light and Diagnostic Lights" on booting to help you connect occasionally, such as ...printers and keyboards. Use the lights to a USB device). 3 FlexBay drive 4 CD or DVD activity light 5 CD or DVD eject button 6 microphone connector 7 headphone connector 8 diagnostic lights (4) 9 USB 2.0 ...
Owner's Manual
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... least 8 to 10 seconds until the computer turns off, then restart your computer. R U N T H E H A R D W A R E TR O U B L E S H O O T E R - See "Resolving Software and Hardware Incompatibilities" on page 47. See "Power Light and Diagnostic Lights" on page 54. C H E C K T H E S O F T W A R E D O C U M E N T A T I G H T S -
... least 8 to 10 seconds until the computer turns off, then restart your computer. R U N T H E H A R D W A R E TR O U B L E S H O O T E R - See "Resolving Software and Hardware Incompatibilities" on page 47. See "Power Light and Diagnostic Lights" on page 54. C H E C K T H E S O F T W A R E D O C U M E N T A T I G H T S -
Owner's Manual
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... the network is off, that the network cable is in the Product Information Guide. Press a key on page 54. Replace the network cable. See "Power Light and Diagnostic Lights" on the back of the procedures in this section, follow the safety instructions located in standby mode. I F T H E P O W E R L I G H T I S B L I N K I N G S - RESTART THE COMPUTER AND LOG ON TO...
... the network is off, that the network cable is in the Product Information Guide. Press a key on page 54. Replace the network cable. See "Power Light and Diagnostic Lights" on the back of the procedures in this section, follow the safety instructions located in standby mode. I F T H E P O W E R L I G H T I S B L I N K I N G S - RESTART THE COMPUTER AND LOG ON TO...
Owner's Manual
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...60 cm (2 ft) away from the monitor. The screen is lit or blinking, the monitor has power. If the power light is difficult to ensure that the electrical outlet is turned on the keyboard or move the mouse. Ensure that the monitor is working... lamps, and other electrical devices can cause the screen image to check for Screen resolution and Color quality. See "Power Light and Diagnostic Lights" on adjusting the contrast and brightness, demagnetizing (degaussing) the monitor, and running the monitor self-test. M O V E T H E M O N I C A L O U T L E T - ROTATE THE MONITOR TO ...
...60 cm (2 ft) away from the monitor. The screen is lit or blinking, the monitor has power. If the power light is difficult to ensure that the electrical outlet is turned on the keyboard or move the mouse. Ensure that the monitor is working... lamps, and other electrical devices can cause the screen image to check for Screen resolution and Color quality. See "Power Light and Diagnostic Lights" on adjusting the contrast and brightness, demagnetizing (degaussing) the monitor, and running the monitor self-test. M O V E T H E M O N I C A L O U T L E T - ROTATE THE MONITOR TO ...
Owner's Manual
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... green Blinking green Solid Amber Blinking Amber Problem Description Suggested Resolution The computer is operating normally. When the computer starts normally, the diagnostic lights flash. Press the power button to turn the computer on. The computer has successfully booted and None. The computer is in the... been configured as a wake-up device to help you begin any of the procedures in this does not resolve your problem, contact Dell (see "Contacting Dell" on page 108). If this section, follow the safety instructions located in a Windows standby power-saving state (S1 or S3). ...
... green Blinking green Solid Amber Blinking Amber Problem Description Suggested Resolution The computer is operating normally. When the computer starts normally, the diagnostic lights flash. Press the power button to turn the computer on. The computer has successfully booted and None. The computer is in the... been configured as a wake-up device to help you begin any of the procedures in this does not resolve your problem, contact Dell (see "Contacting Dell" on page 108). If this section, follow the safety instructions located in a Windows standby power-saving state (S1 or S3). ...
Owner's Manual
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... detected. If the problem persists, contact Dell (see "Contacting Dell" on page 108). a possible pre-POST failure has occurred. A possible floppy drive or hard drive failure Reseat all USB devices, check cable connections, and then restart the computer. 48 Advanced Troubleshooting A possible USB failure has occurred. Diagnostic Lights Light Pattern Problem Description Suggested Resolution The...
... detected. If the problem persists, contact Dell (see "Contacting Dell" on page 108). a possible pre-POST failure has occurred. A possible floppy drive or hard drive failure Reseat all USB devices, check cable connections, and then restart the computer. 48 Advanced Troubleshooting A possible USB failure has occurred. Diagnostic Lights Light Pattern Problem Description Suggested Resolution The...
Owner's Manual
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...appears, highlight Boot to Utility Partition, then press . 4 When the Dell Diagnostics Main Menu appears, select the test you want to wait until you contact Dell for technical assistance. If you begin any of the diagnostic lights are on If there are no power problems and the and the ...system does not start, there may be system does not start , plug the diagnostic lights turn on page 108). Dell Diagnostics CAUTION: Before you experience a problem with the "Contacting Dell" on and then turn off computer into a working electrical outlet. If you wait too long and...
...appears, highlight Boot to Utility Partition, then press . 4 When the Dell Diagnostics Main Menu appears, select the test you want to wait until you contact Dell for technical assistance. If you begin any of the diagnostic lights are on If there are no power problems and the and the ...system does not start, there may be system does not start , plug the diagnostic lights turn on page 108). Dell Diagnostics CAUTION: Before you experience a problem with the "Contacting Dell" on and then turn off computer into a working electrical outlet. If you wait too long and...
Owner's Manual
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... the front panel. Controls and Lights Activity light (on integrated network yellow blinking light adapter) Diagnostic lights Four lights on page 48. Standby power light AUX_PWR on the system board Power DC power supply: Wattage Heat dissipation Voltage Backup battery 280 W 955.39 BTU/hr maximum NOTE: Heat dissipation is ...
... the front panel. Controls and Lights Activity light (on integrated network yellow blinking light adapter) Diagnostic lights Four lights on page 48. Standby power light AUX_PWR on the system board Power DC power supply: Wattage Heat dissipation Voltage Backup battery 280 W 955.39 BTU/hr maximum NOTE: Heat dissipation is ...
Owner's Manual
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... speed is located on a monitor. real time clock - RTCRST - A faster, serial version of 10 kHz to by the human eye. Diagnostics programs, loaded automatically by a printer or displayed on a network in Hz, at the lower end of some computers that perform basic tests on...random-access memory - RTC - Glossary 133 Plug-and-Play - pixel - POST - Some common implementations of rotations that is expressed as infrared and light. A text file included with existing hardware if the BIOS, operating system, and all devices are more likely to as memory, hard drives, and ...
... speed is located on a monitor. real time clock - RTCRST - A faster, serial version of 10 kHz to by the human eye. Diagnostics programs, loaded automatically by a printer or displayed on a network in Hz, at the lower end of some computers that perform basic tests on...random-access memory - RTC - Glossary 133 Plug-and-Play - pixel - POST - Some common implementations of rotations that is expressed as infrared and light. A text file included with existing hardware if the BIOS, operating system, and all devices are more likely to as memory, hard drives, and ...
Owner's Manual
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...68 PCI Express slots, 15 PCI slots, 15 removing PCI, 73 slots, 15, 68 types supported, 68 CD/DVD drive activity light, 14 eject button, 14 problems, 32 CD-RW drive problems, 32 CDs, 22 operating system, 12 playing, 20 Check Disk, ... to, 22 copying DVDs general information, 22 helpful tips, 23 how to, 22 cover removing, 60 replacing, 90 D Dell contacting, 108 support policy, 107 Dell Diagnostics, 50 Dell support site, 11 diagnostic lights, 47 diagnostics Dell, 50 lights, 14, 47 documentation End User License Agreement, 9 ergonomics, 9 online, 11 Product Information Guide, 9 regulatory, 9 safety...
...68 PCI Express slots, 15 PCI slots, 15 removing PCI, 73 slots, 15, 68 types supported, 68 CD/DVD drive activity light, 14 eject button, 14 problems, 32 CD-RW drive problems, 32 CDs, 22 operating system, 12 playing, 20 Check Disk, ... to, 22 copying DVDs general information, 22 helpful tips, 23 how to, 22 cover removing, 60 replacing, 90 D Dell contacting, 108 support policy, 107 Dell Diagnostics, 50 Dell support site, 11 diagnostic lights, 47 diagnostics Dell, 50 lights, 14, 47 documentation End User License Agreement, 9 ergonomics, 9 online, 11 Product Information Guide, 9 regulatory, 9 safety...
Owner's Manual
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...problems, 40 setting up , 19 K keyboard problems, 35 L labels Microsoft Windows, 10 Service Tag, 10, 13 latch release cover, 13 lights diagnostic, 14, 47 front of computer, 47 hard drive activity, 14 M Media Card Reader installing, 83, 85 problems, 38 removing, 83-..., 33 End User License Agreement, 9 ergonomics information, 9 error messages diagnostic lights, 47 troubleshooting, 34 F Flex Bay drive Media Card Reader, 14 floppy drive removing, 81 H hard drive activity light, 14 problems, 33 hardware Dell Diagnostics, 50 Hardware Troubleshooter, 54 headphone connector, 14 Help and Support Center,...
...problems, 40 setting up , 19 K keyboard problems, 35 L labels Microsoft Windows, 10 Service Tag, 10, 13 latch release cover, 13 lights diagnostic, 14, 47 front of computer, 47 hard drive activity, 14 M Media Card Reader installing, 83, 85 problems, 38 removing, 83-..., 33 End User License Agreement, 9 ergonomics information, 9 error messages diagnostic lights, 47 troubleshooting, 34 F Flex Bay drive Media Card Reader, 14 floppy drive removing, 81 H hard drive activity light, 14 problems, 33 hardware Dell Diagnostics, 50 Hardware Troubleshooter, 54 headphone connector, 14 Help and Support Center,...
Owner's Manual
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...up, 17 USB, 18 problems battery, 31 blue screen, 37 CD drive, 32 CD-RW drive, 32 computer crashes, 36-37 computer stops responding, 36 Dell Diagnostics, 50 diagnostic lights, 47 drives, 31 DVD drive, 32 e-mail, 33 error messages, 34 general, 36 hard drive, 33 Internet, 33 keyboard, 35 Media Card Reader, 38... memory, 38 modem, 33 monitor is blank, 44 monitor is hard to read, 45 mouse, 39 network, 40 power, 40 power light conditions, 40 printer, 41...
...up, 17 USB, 18 problems battery, 31 blue screen, 37 CD drive, 32 CD-RW drive, 32 computer crashes, 36-37 computer stops responding, 36 Dell Diagnostics, 50 diagnostic lights, 47 drives, 31 DVD drive, 32 e-mail, 33 error messages, 34 general, 36 hard drive, 33 Internet, 33 keyboard, 35 Media Card Reader, 38... memory, 38 modem, 33 monitor is blank, 44 monitor is hard to read, 45 mouse, 39 network, 40 power, 40 power light conditions, 40 printer, 41...
Owner's Manual
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..., 107 support website, 11 system board, 63 System Restore, 54 system setup about, 97 entering, 97 options, 98 screens, 97 T technical support policy, 107 troubleshooting Dell Diagnostics, 50 diagnostic lights, 47 Hardware Troubleshooter, 54 Help and Support Center, 11 restore to previous state, 54 tips, 31 U USB booting to devices, 103 connectors, 14 V vents...
..., 107 support website, 11 system board, 63 System Restore, 54 system setup about, 97 entering, 97 options, 98 screens, 97 T technical support policy, 107 troubleshooting Dell Diagnostics, 50 diagnostic lights, 47 Hardware Troubleshooter, 54 Help and Support Center, 11 restore to previous state, 54 tips, 31 U USB booting to devices, 103 connectors, 14 V vents...