User manual ACER VERITON M670G

[. . . ] 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, Inspiron, Dimension, Latitude, Dell Precision, DellNet, and OptiPlex are trademarks of Dell Computer Corporation; Intel is a registered trademark and Celeron is a trademark 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. Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. [. . . ] Contact Dell for technical assistance. Serial or Parallel Device Problems If a computer error message indicates a port problem or if equipment connected to a port seems to perform incorrectly or not at all, the source of the problem can be any of the following: · · · · · · · · A faulty connection between the I/O port and the device Incorrect settings for system setup options Incorrect settings in the operating system's configuration files A faulty cable between the I/O port and the device A faulty device Faulty I/O port logic on the system board Conflicting COM port settings Lack of drivers NOTE: If you are having a problem with a printer, see "Printer 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. S o lv ing Pr o ble m s 167 w w w. c o m · · · Test the electrical outlet. Verify that the device is connected to a working electrical outlet. Check for interference: electrical appliances on the same circuit or operating in close proximity to the computer can cause interference. If the problem still exists after you complete the basic checks, fill out the Diagnostics Checklist as you perform the following steps: 1 Enter system setup and check the Integrated Devices option settings. Then exit system setup properly to save the information, and reboot the computer. For a serial device, check the Serial Port options; for a parallel device, check the Parallel Port options. See the device's documentation for additional information on port settings and configuration requirements. Go to step 2. 2 Run the Serial Ports device group and/or the Parallel Ports device group in the Dell Diagnostics. These device groups check the basic functions of the system board's I/O port logic. If a printer is connected to the parallel port, the Parallel Ports device group tests the communication link between the system board's I/O port logic and the printer. During the boot routine, do the Num Lock, Caps Lock, and Scroll Lock lights on the keyboard blink momentarily?Go to step 7. 6 Use the keyboard to type some characters. Contact Dell for technical assistance. 7 Run the PC-AT Compatible Keyboards tests in the Dell Diagnostics. Go to step 8. 8 Turn off the computer, connect another keyboard to the computer, and then turn the computer on. If you do not have another keyboard, contact Dell for technical assistance. Contact Dell for technical assistance. Floppy Drive Problems During the power-on self-test (POST), the computer checks the floppy drive, comparing its characteristics with the computer configuration information. The floppy-drive access light blinks as the computer performs this check. Basic Checks: S o lv ing Pr o ble m s 171 w w w. c o m · If you hear an unfamiliar scraping or grinding sound when a drive is accessed, there could be a hardware malfunction. When you turn on the computer, you can hear drive activity during the boot routine. If your computer does not boot, contact Dell for technical assistance. [. . . ] c o m in the United States, many customers of large manufacturers make UL approval a mandatory requirement. UPS Uninterruptible power supply. A device that allows your computer to keep running for a limited amount of time after the primary power source is lost. Typically, a UPS can also provide protection against power surges. URL Uniform Resource Locator. A standard way of specifying the location of an object, such as an HTML document, on the Internet. [. . . ]