User manual DELL OPTIPLEX GX50

[. . . ] DellTM OptiPlexTM GX50 Systems User's Guide 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 "Glossary. " ____________________ Information in this document is subject to change without notice. [. . . ] Contact Dell for technical assistance. 3 If the problem is confined to a particular application program, see the application program's documentation for specific port configuration requirements. Go to step 4. 4 Turn off the computer and the device, swap the device's cable with a known working cable, and then turn on the computer and the device. 168 So lv ing Pr o ble m s Is the device working properly?Go to step 5. 5 Turn off the computer and the device, swap the device with a comparable working device, and then turn on the computer and the device. Contact Dell for technical assistance. Mouse Problems Basic Checks: · · · · Disconnect the cable from the computer and check the cable connector for bent or broken pins. If the cable is not damaged, make sure that it is firmly connected to the computer. Reinstall the mouse driver for your operating system. Restart the computer. If the problem still exists after you complete the basic checks, fill out the Diagnostics Checklist as you perform the following steps: 1 If you are using a PS/2 mouse, enter system setup and make sure that Mouse Port under the Integrated Devices option is set to On. Then exit system setup properly to save the information, and reboot the computer. Go to step 2. 2 If you are using a PS/2 mouse, run the Mouse test in the Pointing Devices device group in the Dell Diagnostics. Go to step 3. S o lv ing Pr o ble m s 169 w w w. Contact Dell for technical assistance. 3 Turn off the computer, connect another mouse to the computer, and then turn the computer on. If you do not have another mouse, contact Dell for technical assistance. Contact Dell for technical assistance. Keyboard Problems Basic Checks: · · · · Disconnect the cable from the computer and check the cable connector for bent or broken pins. If the cable is not damaged, make sure that it is firmly connected to the computer. Keyboard extension cables can cause problems. Restart the computer. If the problem still exists after you complete the basic checks, fill out the Diagnostic Checklist as you perform the following steps: 1 Turn off the computer, and then disconnect the keyboard cable and check it for bent or broken pins. If they can be straightened, straighten them and go to step 2. If they cannot be straightened or are broken, you must replace the keyboard. Go to step 2. 2 Reconnect the keyboard to the computer. Make sure the keyboard cable is firmly connected to computer. If you are using a keyboard that can be configured with various switch settings, make sure the switch is set to PS/2, Enhanced XT/AT, or PC/AT. 3 4 170 So lv ing Pr o ble m s The switch settings are usually on the bottom of the keyboard, sometimes behind a panel. Refer to the documentation that came with the keyboard for more information. 5 Turn off the computer, wait 30 seconds, and turn it on again. [. . . ] Examples of URLs include the following: · · · · http://www. dell. com http://support. dell. com ftp. dell. com mailto:info@dell. com The part before the first colon specifies the access scheme or protocol. Commonly implemented schemes include FTP and http. The part after the colon is interpreted according to the access scheme and can introduce an IP address, indicate a path or file on a server, or locate a particular position within a specified document. USB Universal Serial Bus. An interface for devices such as keyboards, joysticks, scanners, speakers, or printers, that provides a maximum transfer speed of 12 Mb/second. [. . . ]