User manual ACER VERITON S490

[. . . ] © 2001­2002 Dell Computer Corporation. Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden. Trademarks used in this text: Dell, the ACER logo, OptiPlex, and Dell OpenManage are trademarks of Dell Computer Corporation; Intel and Pentium are registered trademarks of Intel Corporation; Microsoft, Windows NT, MS-DOS, and Windows are registered trademarks of Microsoft Corporation; 3Com is a registered trademark of 3Com Corporation; IBM is a registered trademark of International Business Machines Corporation; NetWare and Novell are registered trademarks of Novell, Inc. As an ENERGY STAR partner, Dell Computer Corporation has determined that this product meets the ENERGY STAR guidelines for energy efficiency. [. . . ] Go to step 4. 4 Click the Start button and select Shut Down. Restarting a Computer That Is Not Responding 1 2 Press and hold the power button until the computer turns off. Press the power button to turn on the computer. Repairing a Wet Computer Spills, splashes, and excessive humidity can cause damage to the computer. If an external device, such as a printer or modem, gets wet, contact the manufacturer of the device for instructions. CAUTION: Before you perform this procedure, see "CAUTION: Safety Instructions. " Fill out the Diagnostics Checklist as you perform the following steps: 1 Turn off the computer and devices, disconnect them from their electrical outlets, wait 10 to 20 seconds, and then open the computer cover. Let the computer dry for at least 24 hours. Make sure that it is thoroughly dry before you proceed. Remove all expansion cards installed in the computer except a video expansion card. 2 3 182 So l vi n g Pro b l em s 4 Close the computer cover, reconnect the computer and devices to their electrical outlets, and turn them on. Contact Dell for technical assistance. 5 Turn off the computer and devices, disconnect them from their electrical outlets, wait 10 to 20 seconds, and then open the computer cover. Close the computer cover, reconnect the computer and devices to their electrical outlets, and turn them on. Run the System Board Devices test group in the Dell Diagnostics. The problem is resolved. NOTE: If your primary hard drive is connected to a drive controller card and not one of the system board IDE connectors, leave the drive controller card installed in the computer. 6 7 8 Repairing a Dropped or Damaged Computer CAUTION: Before you perform this procedure, see "CAUTION: Safety Instructions. " Fill out the Diagnostic Checklist as you perform the following steps: 1 Turn off the computer and devices, disconnect them from their electrical outlets, wait 10 to 20 seconds, and then open the computer cover. Check all the expansion-card connections in the computer, and reseat any loose expansion cards. Rotate the power supply away from the system board. Close the computer cover, reconnect the computer and devices to their electrical outlets, and turn them on. Does the RAM count displayed correctly match the actual amount of memory installed in the computer?Contact Dell for technical assistance. 4 5 6 System Board Problems A system board problem can result from a defective system board component, a faulty power supply, or a defective component connected to the system board. If an error message indicates a system board problem, fill out the Diagnostic Checklist as you perform the following steps. So l vi n g Pro b l em s 185 w w w. c o m CAUTION: Before you perform this procedure, see "CAUTION: Safety Instructions. " 1 Reboot the computer and run the System Board Devices test group in the Dell Diagnostics. Go to step 2. 2 Turn off the computer and devices, disconnect them from their electrical outlets, wait 10 to 20 seconds, and then open the computer cover. Make sure the power cables from the power supply are firmly connected to the connectors on the system board. Close the computer cover, reconnect the computer and devices to their electrical outlets, and turn them on. Go to step 5. 3 4 5 Perform the procedure in "Expansion Card Problems. " Is the computer working properly?Go to step 6. 6 Perform the procedure in "Keyboard Problems. " Is the computer working properly? [. . . ] Typically, a UPS can also provide protection against power surges. 43 w w w. c o m URL Uniform Resource Locator. A standard way of specifying the location of an object, such as an HTML document, on the Internet. 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. [. . . ]