Dell 900 - page 48

3-6 Dell Dimension 900 System Reference and Troubleshooting Guide

•Change the display type to standard video graphics array (VGA) as follows:

1. Restart the system.

2. For Windows 98, Windows Me, and Windows 2000, press <F8> when you

see the Starting Windows ... message, and then select Safe Mode

from the boot manager screen.

For Windows NT, select Windows NT Workstation 4.0 [VGA Mode] from

the boot manager screen.

•Reinstall the video drivers (see “Video Drivers” in Chapter 4).

Speakers

Perform the following checks for speaker problems:

•Ensure that the speakers are properly connected as shown on the Getting

Started sheet or as described in the documentation that came with the speakers.

•Reseat all speaker connections and make sure they are inserted fully. Verify that

the audio jacks are not bent or broken.

•Verify that the speakers and/or subwoofer are turned on and are connected to a

known good power source.

•Turn up the volume knob on the speakers. If the audio is distorted, make sure

that the volume is not turned to its maximum setting. Adjust the treble and/or

bass if the sound is distorted.

•Turn up the volume by clicking the yellow speaker icon in the Windows taskbar

and adjusting the volume s etting.

•Turn off the monitor and such devices as fans, fluorescent lights, or halogen

lamps to check for interference from those devices.

•Plug the speakers into the headphone jack of the optical drive, make sure the

headphone volume control is turned up, and play a music CD.

•Check for conflicts as described in “Resolving Software and Hardware Incompat-

ibilities” in Chapter 4. Then reinstall the audio drivers as described in

“Reinstalling Drivers” in Chapter 4.

Modem

NOTICE: Connect the modem to an analog line only. Using a nonanalog

line, such as a digital or private branch exchange (PBX) line, will damage

the modem.

NOTE: If your modem can dial and connect to one Internet service provider (ISP) or to

a fax machine, your modem is functioning properly. For assistance, contact the ISP to

which you cannot connect.

Contents

Main ____________________ Safety Instructions When Using Your Computer System Ergonomic Computing Habits When Working Inside Your Computer Protecting Against Electrostatic Discharge Preface About This Guide Warranty and Return Policy Information Other Documents You May Need Notational Conventions Notes, Notices, and Cautions Page Page Contents Chapter 1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Chapter 2 Installing Upgrades on the System Boar d . . . . . . . . . 2-1 Chapter 3 Basic Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 3- 1 Chapter 4 Software Solutions. . . . . . . . . . . . . . . . . . . . . . . . . . . . 4-1 Chapter 5 Checking Inside Your Computer . . . . . . . . . . . . . . . . . 5-1 Chapter 6 Getting Help . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6-1 Appendix C Beep Codes and System Messages . . . . . . . . . . . . . . . C -1 Appendix D Regulatory Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1 Index Figures Tables Page CHAPTER 1 Introduction Hardware Features Software Features Available Upgrades Padlock Ring Page CHAPTER 2 Installing Upgrades on the System Board Safety FirstFor You and Your Computer Installation Guideline s Removing and Replacing the Computer Cover Figure 2-1. Removing the Computer Cover Figure 2-2. Removing the Bezel Inside Your Computer Figure 2-3. Inside the Computer System Board Figure 2-4 shows the system board connectors and sockets, and Table 2-1 describes their functions. Figure 2-4. System Boa rd Features Table 2-1. System Board Connectors and Sockets Jumpers Passwo rd Jump er Table 2-2. Password Jumper Settings Processor Mode Jumper NVRAM Jumper Table 2-3. Processor Mode Jumper Settings Table 2-4. NVRAM Jumper Settings Boot-Block Select Jumper Removing and Replacing the Riser-Board Bracket Table 2-5. Boot-Block Jumper Settings Figure 2-5. Removing the Riser-Board Bracket PCI Expansion Card Upgrades Figure 2-6. PCI Expansion Card Figure 2-7. Riser Board PCI Expansion-Card Connectors Installing Expansion Cards Page Figure 2-10. Installing an Expansion Card Removing Expansion Cards Adding Memory Installing a DIMM Figure 2-11. Installing a DIMM Removing a DI MM Figure 2-12. Removing a DIMM Replacing the System Battery Figure 2-13. Drive Shelf Figure 2-14. System Battery and Battery Socket Page CHAPTER 3 Basic Troubleshooting Backing Up Data Files Installing Additional Hardwar e and Software DellWare Support Checking the Basics External Connections Page Page Page Page Page Diskette Drives Optical Drives Running the Dell Diagnostics Starting the Dell Diagnostics Page Dell Diagnostics Main Screen Figure 3-2. Dell Diagnostics Main Screen Using the Dell Diagnostics Menu Keys Device Group Device Test Versi ons Software Solutions Using the Power Management Features in Windows 98, Windows Me, and Windows 2000 Reinstalling Drivers Your Systems Drivers Using the Dell Dimension ResourceCD to Reinstall Drivers Temporarily Disabling the Virus-Scanning Program Resolving Software and Hardware Incompatibilities Windows 98 and Windows Me Windows 2000 Windows NT Reinstalling Windows 98 Page Reinstalling Windows Me Reinstalling Windows 2000 Page CHAPTER 5 Checking Inside Your Computer Expansion Cards Page Modem Network Cards System Memory Reseating DI MMs If Your Computer Gets Wet If Your Computer Is Damaged Page CHAPTER 6 Getting Help Technical Assistance Help Tools World Wide Web Automated Order-Status System Technical Support Service Problems With Your Order Product Informatio n Returning Items for Warranty Repair or Credit Before You Call Figure 6-1. Diagnostics Checklist Dell Contact Numbers Table 6-1. Dell Contact Numbers APPENDIX A System Specifications Table A-1. Technical Specifications Page Page Page Page Page APPENDIX B System Setup Program Entering the System Setup Program Using the System Setup Program Page System Setup Screens and Options Main Screen Figure B-1. Main Screen Menu Table B-2. Main Screen Menu Options Page Page Disk Drives Screen Figure B-4. Disk Drives Screen Menu Table B-5. Disk Drives Screen Menu Options IDE Primary Channel Master Submenu Onboard Peripherals Screen Figure B-6. Onboard Peripherals Screen Menu Table B-7. Onboard Peripherals Screen Menu Options Table B-7. Onboard Peripherals Screen Menu Options (continued) Boot Options Screen Figure B-7. Boot Options Screen Menu Table B-8. Boot Options Screen Menu Options Table B-8. Boot Options Screen Menu Options (continued) Page System Security Screen Figure B-9. System Security Screen Menu Table B-10. System Security Screen Menu Options Advanced Options Screen Memory/Cache Options Submenu Figure B-11. Memory/Cache Options Submenu Table B-12. Memory/Cache Options Submenu Options PnP/PCI Options Submenu Figure B-12. PnP/PCI Options Submenu Table B-13. PnP/PCI Options Screen Submenu Options Disabling a Forgotten Password Table B-13. PnP/PCI Options Screen Submenu Options (continued) Clearing NVRAM Page APPENDIX C Beep Codes and System Messages POST Beep Codes Table C-1. POST Beep Codes System Messages Table C-2. System Messages Table C-1. POST Beep Codes (continued) Page Page Page Page APPENDIX D Regula tory No tices VCCI Notice (Japan Only) Class A ITE VCCI-A Figure D-1. VCCI Class A ITE Regu latory Mark Class B ITE Figure D-2. VCCI Class B ITE Regulatory Mark Battery Disposal Page Index A B C D E F G H J K M N O R S T U V W