User manual DELL DIMENSION 8400

[. . . ] DellTM DimensionTM 8400 Series CD or DVD activity light CD or DVD drive eject button floppy drive eject button* floppy drive light* USB 2. 0 connectors (2) headphone connector Service Tag hard drive light power button *On computers with a floppy drive. parallel connector diagnostic lights mouse connector surround connector center/LFE connector line-out connector microphone connector USB 2. 0 connectors (6) VGA video connector TV-OUT connector** optional sound-card connectors** **Not present on all computers. line-in connector network adapter DVI connector PCI card (3), PCI Express x1 card (1), PCI Express x16 card (1) slots power connector voltage selection switch serial connector keyboard connector 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. [. . . ] Displays error conditions encountered, error codes, and the problem description. Describes the test and may indicate requirements for running the test. Advanced Troubleshooting 53 www. dell. com | support. dell. com Tab Configuration Function Displays your hardware configuration for the selected device. The Dell Diagnostics obtains configuration information for all devices from system setup, memory, and various internal tests, and it displays the information in the device list in the left pane of the screen. The device list may not display the names of all the components installed on your computer or all devices attached to your computer. Parameters 4 Allows you to customize the test by changing the test settings. Close the test screen to return to the Main Menu screen. To exit the Dell Diagnostics and restart the computer, close the Main Menu screen. Drivers What Is a Driver? A driver is a program that controls a device such as a printer, mouse, or keyboard. A driver acts like a translator between the device and any other programs that use the device. Each device has its own set of specialized commands that only its driver recognizes. Dell ships your computer to you with required drivers already installed--no further installation or configuration is needed. Many drivers, such as the keyboard driver, come with your Microsoft® Windows® operating system. You may need to install drivers if you: · · · Upgrade your operating system. Connect or install a new device. Identifying Drivers If you experience a problem with any device, identify whether the driver is the source of your problem and, if necessary, update the driver. Windows XP 1 2 3 4 Click the Start button and click Control Panel. In the System Properties window, click the Hardware tab. 54 Advanced Troubleshooting 5 6 Click Device Manager. Scroll down the list to see if any device has an exclamation point (a yellow circle with a [!]) on the device icon. If an exclamation point is next to the device name, you may need to reinstall the driver or install a new driver (see page 55). Reinstalling Drivers NOTICE: The Dell Support website at support. dell. com provides approved drivers for DellTM computers. If you install drivers obtained from other sources, your computer might not work correctly. Using Windows XP Device Driver Rollback If a problem occurs on your computer after you install or update a driver, use Windows XP Device Driver Rollback to replace the driver with the previously installed version. 1 2 3 4 5 6 7 8 Click the Start button and click Control Panel. Right-click the device for which the new driver was installed and click Properties. Click Roll Back Driver. If Device Driver Rollback does not resolve the problem, then use System Restore to return your computer to the operating state that existed before you installed the new driver. Manually Reinstalling Drivers 1 2 3 4 5 6 7 8 9 10 After copying the required driver files to your hard drive, click the Start button and right-click My Computer. Double-click the type of device for which you are installing the driver. Double-click the name of the device for which you are installing the driver. Click Install from a list or specific location (Advanced) and click Next. Click Browse and browse to the location to which you previously extracted the driver files. Click Finish and restart your computer. Advanced Troubleshooting 55 www. dell. com | support. dell. com Restoring Your Operating System You can restore your operating system in the following ways: · · Microsoft Windows XP System Restore returns your computer to an earlier operating state without affecting data files. [. . . ] Note that FCC regulations provide that changes or modifications not expressly approved by Dell could void your authority to operate this equipment. Operation is subject to the following two conditions: This device may not cause harmful interference. Appendix 121 www. dell. com | support. dell. com This device must accept any interference received, including interference that may cause undesired operation. Class A This equipment has been tested and found to comply with the limits for a Class A digital device pursuant to Part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference when the equipment is operated in a commercial environment. 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 harmful interference with radio communications. [. . . ]