Dell Dimension L___cx Uživatelský manuál Strana 81
- Strana / 162
- Tabulka s obsahem
- KNIHY
Hodnocené. / 5. Na základě hodnocení zákazníků
support.dell.com Checking Inside Your Computer 6-33
Modem
In general, modem malfunctions may be caused by any of the following problems:
• Incorrectly seated modem in the Peripheral Component Interconnect (PCI) slot
• Interrupt request (IRQ) conflictQ) conflicts
• Incorrect drivers installed
• Incorrect software configuration
To troubleshoot a modem card, perform the following steps:
1. Check for modem IRQ conflicts.
Refer to “Resolving Software and Hardware Incompatibilities” in ChapterHardware Incompatibilities” in Chapter 5.
Resolve any modem IRQ conflicts, and restart the computer system.
2. Verify the modem configurationguration.
a. Click the Start button, point to Settings, and click Control Panel.
b. In the Control Panel, double-click Modems. If there are multiple entries for
the same modem, remove those entries and restart the computer. If there
are modems listed that are not part of the system configuration, remove
them from the list. If you are using Windows NT, check the modem proper-
ties and then proceed to step 3. If you are using Windows 2000, in the 2000, in the
Control Panel double-click Phone and Modem Options.
c. Click the Diagnostics tab.
d. Highlight the COM port that the modem is using.
e. Click More Infofo to verify that the system can communicate with the modem.
If the modem reports information to the system, the modem is operating
properly.
3. Remove the computer cover and rotate the power supply as described in
“Removing and Replacing the Computer Cover” and “Rotating the Power Supply
Away From the System Board” iFrom the System Board” in Chapter 2.
4. Remove and reinstall the modem, fully seating the card in its connector (see
Figure 6-1).
5. Rotate the power supply back into position, rewer supply back into position, replace the computer cover, connect all
external cables, and turn on the system. Enter the system setup program as
described in Appendix B, “System Setup Program,” and verify that Serial port A
on the Peripheral Configuration submenu is set to Auto.
NOTE: If you have persistent problems with low connection speeds, contact your
telephone company to check for data noise and imbalanced lines or your Internet
service provider (ISP) for information about their service.(ISP) for information about their service.
- Ergonomic Computing Habits 4
- About This Guide 7
- Other Documents You May Need 8
- Notes, Notices, and Cautions 8
- Typographical Conventions 9
- Hardware Features 17
- Software Features 18
- Available Upgrades 19
- Preventive Maintenance 20
- Power Protection Devices 22
- Line Conditioners 23
- Uninterruptible Power Supply 23
- —For You and Your Computer 25
- Installation Guidelines 26
- System Board 28
- Inside Your Computer 29
- Connector or 32
- Socket Description 32
- * •indicates pin 1 33
- PCI Expansion Card Upgrades 34
- Removing Expansion Cards 37
- Adding Memory 38
- Removing a DIMM 40
- Replacing the System Battery 40
- (BATTERY) 41
- Front-Panel Insert 45
- Configuring Drives 46
- Connecting Drive Cables 46
- 5.25-Inch Drive 47
- 3.5-Inch Drives 48
- Lower 3.5-Inch Bay 51
- Replacing the Hard-Disk Drive 52
- Drive 54
- Backing Up Data Files 55
- Software 55
- Checking the Basics 56
- Indication Action 57
- Running the Dell Diagnostics 63
- Starting the Dell Diagnostics 64
- Dell Diagnostics Main Screen 65
- Using the Dell Diagnostics 67
- Versions 68
- Features 69
- Reinstalling Drivers 70
- Incompatibilities 72
- Reinstalling Windows 98 74
- Reinstalling Windows Me 75
- Reinstalling Windows 2000 77
- Expansion Cards 79
- • Incorrect drivers installed 81
- System Memory 83
- If Your Computer Gets Wet 87
- If Your Computer Is Damaged 88
- Technical Assistance 89
- Help Tools 90
- Problems With Your Order 91
- Product Information 92
- Before You Call 92
- International 95
- Country (City) 100
- Area Local Number or 100
- Microprocessor 109
- System Information 109
- Expansion Bus 110
- System Clock 110
- Ports and Connectors 111
- Controls and Indicators 111
- Environmental 112
- Physical 112
- Altitude:: 113
- Keys Action 116
- Main Screen 118
- Advanced Screen 119
- Boot Configuration Submenu 120
- Option Function 121
- IDE Configuration Submenu 122
- Primary IDE Master Submenu 123
- Video Configuration Submenu 126
- Security Screen 127
- Boot Screen 128
- Exit Screen 130
- Clearing NVRAM 132
- Diagnostic Codes 133
- POST Beep Codes 137
- System Messages 137
- FCC Notices (U.S. Only) 142
- IC Notice (Canada Only) 143
- CE Notice (European Union) 144
- Battery Disposal 144
- VCCI Notice (Japan Only) 145
- Class B ITE 146
- NOM Information (Mexico Only) 147
- Coverage During Year One 149
- General Provisions 150
- Caribbean Only) 153
- Exclusions 154
- Making a Claim 154
- Canada Only) 155
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