Dell Dimension L___cx Uživatelský manuál stáhnout pdf (Strana 61)

support.dell.com Basic Troubleshooting 4-7

• Plug a telephone cable into the telephone jack (the jack with a telephone icon) on

the modem and listen for a dial tone.

• Try a different cable; if you are using a cable that is 10 feet or more in length, try a

shorter one.

• Low connection speeds can be caused by line noise. If you have persistent prob-

lems, contact your telephone company to check for data noise and imbalanced

lines.

• Refer to “Modem” in Chapter 6 for further troubleshooting informationModem” in Chapter 6 for further troubleshooting information.

Diskette Drives

If you have diskette drive problems, perform the following checks:

• Make sure the diskette is not write-protected if you are trying to copy data to it.

• Try a different diskette in the drive. If the new diskette works, the original one

may be defective.

• Check the settings on the Diskette Configuration submenu of the system setup

program as described in Appendix B, “System Setup Program.”Appendix B, “System Setup Program.”

• Run the Diskette device group as described in “Running the Dell Diagnostics”

found later in this chapter.

• Refer to “Drives” in Chapter 6 for further troubleshooting information.6 for further troubleshooting information.

CD-ROM Drives

If you have CD-ROM drive problems, perform the following checks.ks.

NOTE: Inconsistencies in the recording of CD-ROM media may cause some higher-M media may cause some higher-

speed CD-ROM drives to vibrate more than others. Such vibration and associated Such vibration and associated

noise do not indicate a defect in the drive or the CD. It should be noted that not all

media can be read by all drives.

• Double-click the My Computer icon, and check to see if the drive is recognized

by the system. Most of the common boot sector viruses cause the CD-ROM

drive to “disappear.” Use virus-scanning software Use virus-scanning software to check for and remove any

viruses.

• Clean the disc with a soft, lint-free cloth and isopropyl alcohol.

• Try another CD title.

• Enter the system setup program as described in Appendix B, “System Setup Pro-x B, “System Setup Pro-

gram,” and verify that Ty p e is set to Auto for the appropriate IDE drive option.

• Run the appropriate tests under the IDE Devices device group as described in

“Running the Dell Diagnostics” found later in this chapter.

• Refer to “CD-ROM OM Drives” in Chapter 6 for further troubleshooting information.

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Dell Dimension L___cx Uživatelský manuál Strana 61