Dell™ Dimension™ 900 System REFERENCE AND TROUBLESHOOTING GUIDE www.dell.com support.dell.
____________________ Information in this document is subject to change without notice. © 1999–2001 Dell Computer Corporation. All rights reserved. Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.
Safety Instructions Use the following safety guidelines to help protect your computer system from potential damage and to ensure your own personal safety. NOTICE: Your computer is designed to work only while upright in the stand shipped with it. Do not attempt to place the computer flat on a desktop, and do not set heavy objects, such as a monitor, on top of the computer. When Using Your Computer System As you use your computer system, observe the following safety guidelines.
grounding prong from a cable. If you must use an extension cable, use a threewire cable with properly grounded plugs. • • • • • To help protect your computer system from sudden, transient increases and decreases in electrical power, use a surge suppressor, line conditioner, or uninterruptible power supply (UPS). Be sure nothing rests on your computer system’s cables and that the cables are not located where they can be stepped on or tripped over. Do not spill food or liquids on your computer.
• • When sitting, make sure the weight of your legs is on your feet and not on the front of your chair seat. Adjust your chair’s height or use a footrest, if necessary, to maintain proper posture. Vary your work activities. Try to organize your work so that you do not have to type for extended periods of time. When you stop typing, try to do things that use both hands.
3. Disconnect any devices connected to the computer, including the monitor, from their electrical outlets to reduce the potential for personal injury or shock. Also, disconnect any telephone or telecommunication lines from the computer. 4. Disconnect the power cable to your computer, and then press the power button to ground the system board.
Preface About This Guide This guide is intended for anyone who uses a Dell Dimension 900 system. It can be used by both first-time and experienced computer users who want to learn about the features and operation of the systems or who want to upgrade their computers. The chapters and appendixes are summarized as follows: • • • • • • • • • • Chapter 1, “Introduction,” provides an overview of the system features and information on preventive maintenance to protect the computer.
Other Documents You May Need NOTE: Information updates are sometimes included with your system to describe changes to your system or software. Always read these updates before consulting any other documentation because the updates often contain the latest information. Besides this Reference and Troubleshooting Guide, the following documentation is included with your system: • • • • • • The Getting Started sheet provides step-by-step instructions for setting up your computer system.
Typographical Conventions The following list defines (where appropriate) and illustrates typographical conventions used as visual cues for specific elements of text throughout this document: • Interface components are window titles, button and icon names, menu names and selections, and other options that appear on the monitor screen or display. They are presented in bold. Example: Click OK. • Keycaps are labels that appear on the keys on a keyboard. They are enclosed in angle brackets.
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Contents Chapter 1 Introduction. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1-1 Hardware Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Software Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Available Upgrades . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Padlock Ring . . . . . . . . . . . . . . . . . . . . . . .
Chapter 3 Basic Troubleshooting . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Backing Up Data Files . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 Installing Additional Hardware and Software . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-1 DellWare Support. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3-2 Checking the Basics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Chapter 5 Checking Inside Your Computer . . . . . . . . . . . . . . . . . 5-1 Expansion Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Modem. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . Network Cards . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . System Memory . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Appendix C Beep Codes and System Messages . . . . . . . . . . . . . . . C-1 POST Beep Codes . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-1 System Messages . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . C-2 Appendix D Regulatory Notices . . . . . . . . . . . . . . . . . . . . . . . . . . . D-1 VCCI Notice (Japan Only) . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
Tables Figure B-11. Figure B-12. Figure D-1. Figure D-2. Memory/Cache Options Submenu . . . . . . . . . . . . . . . . . . . . . . . . . B-16 PnP/PCI Options Submenu . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . B-17 VCCI Class A ITE Regulatory Mark . . . . . . . . . . . . . . . . . . . . . . . . . . D-3 VCCI Class B ITE Regulatory Mark . . . . . . . . . . . . . . . . . . . . . . . . . .
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CHAPTER 1 Introduction Dell™ Dimension™ 900 computer systems are high-speed personal computers that include an Intel® Socket 370 Pentium® III microprocessor with Streaming Single Instruction, Multiple Data (SIMD) Extensions or a Celeron™ processor with MMX™ technology. These systems incorporate a high-performance Peripheral Component Interconnect (PCI) design, allowing a wide range of initial configurations and upgrade possibilities.
The system board includes the following integrated features: • • Integrated Intel 810e video controller with Dynamic Video Memory and 4 MB of SDRAM for display cache. Supports two one-third–length 32-bit PCI expansion cards for connecting PCI devices to the PCI bus. NOTE: PCI expansion-card connector PCI1 (see Figure 2-7) is reserved for use with Dimension 900 system-specific expansion cards available only from Dell (see “Available Upgrades,” found later in this chapter).
• • • • Virus-scanning software. Video drivers designed to support the integrated Intel Direct accelerated graphics port (AGP) Graphics Accelerator (see “Video Drivers” in Chapter 4 for more information). Before changing the resolution, check the monitor documentation to determine the supported resolutions and refresh rates. Dell Diagnostics for evaluating the computer’s components and devices (see “Running the Dell Diagnostics” in Chapter 3).
padlock ring Figure 1-1. Padlock Ring The padlock ring allows you to secure the computer cover to the chassis with a padlock to prevent unauthorized access to the inside of the computer. To use the padlock ring, insert a commercially available padlock through the ring, and then lock the padlock.
CHAPTER 2 Installing Upgrades on the System Board This chapter describes how to install expansion cards and system memory. It also tells you how to remove and replace the computer cover and familiarizes you with internal components. Safety First—For You and Your Computer Working inside your computer is safe—if you observe the following precautions. CAUTION FOR YOUR PERSONAL SAFETY AND PROTECTION OF YOUR EQUIPMENT Before working on your computer, perform the following steps: 1.
Installation Guidelines Keep a static-sensitive component in its antistatic packing material until you are ready to install the component in the computer. Just before unwrapping the antistatic packaging, discharge static electricity from your body. Make sure you have adequate lighting and a clean work space. If you temporarily disconnect cables or remove expansion cards, note the position of the connectors and slots so that you can reassemble the system correctly.
screws (3) Figure 2-1. Removing the Computer Cover 6. Slide the cover toward the back of the computer about one-half inch. 7. Lift off the cover. To replace the computer cover, perform the following steps: support.dell.com 1. Check all cable connections, especially those that might have come loose during your work. Fold cables and unused connectors out of the way so that they do not catch on the computer cover or interfere with airflow inside the computer. 2.
front panel tabs (3) bezel Figure 2-2. Removing the Bezel 4. Place the cover on the computer, and slide it toward the front of the computer. 5. Replace the screws that you removed when you removed the computer cover. 6. If you are using a padlock to secure your system, reinstall the padlock. 7. Replace the bezel. 8. Place the computer in its stand. CAUTION: Your system is designed to work only in a vertical orientation using the stand shipped with the computer.
diskette drive system board optical drive riser-board bracket expansion-card slots line-out connector power supply USB connector voltage-select switch AC power receptacle video connector parallel port connector serial port connector mouse connector keyboard connector Figure 2-3. Inside the Computer support.dell.
System Board Figure 2-4 shows the system board connectors and sockets, and Table 2-1 describes their functions.
u Table 2-1.
Jumpers Jumpers are small blocks on the system board with two or more pins emerging from them. Plastic plugs containing a wire fit down over the pins, creating a circuit. To change a jumper setting, pull the plug off its pin(s) and carefully fit it down onto the pin(s) indicated. NOTICE: Make sure your system is turned off and unplugged from the electrical outlet before you change a jumper setting. Otherwise, damage to your system or unpredictable results may occur.
Processor Mode Jumper Figure 2-4 shows the location of the processor mode jumper (JPX1) in your computer. Table 2-3 describes the settings and functions of the processor mode jumper settings. Table 2-3. Processor Mode Jumper Settings Jumper Settings Description Enables processor normal mode (default). Change this setting only if instructed to by Dell Technical Support. Enables processor safe mode NOTE: The Glossary in the system Help defines abbreviations and acronyms.
Boot-Block Select Jumper Figure 2-4 shows the location of the boot-block select jumper (JP7) in your computer. Table 2-5 describes the settings and functions of the boot-block select jumper. Table 2-5. Boot-Block Jumper Settings Jumper Settings Description Normal boot setting (default). Change this setting only if instructed to by Dell Technical Support. Boot from top block setting NOTE: The Glossary in the system Help defines abbreviations and acronyms.
diskette-drive slots and tabs (2) front tab riser-board bracket riser-board securing tabs (5) diskette drive screw back tabs (3) oval opening Figure 2-5. Removing the Riser-Board Bracket To replace the riser-board bracket, perform the following steps: 1. Hold the back of the diskette drive with one hand to prevent it from moving as you perform this process. 2. Slip one finger into the oval opening on top of the riser-board bracket (see Figure 2-5).
PCI Expansion Card Upgrades NOTE: This computer does not support older expansion card technologies, such as Industry-Standard Architecture (ISA) cards. The riser board accommodates up to two one-third–length, 32-bit Peripheral Component Interconnect (PCI) expansion cards. PCI expansion-card connector 1 (PCI1) is reserved for use with Dimension 900 system-specific expansion cards available only from Dell (see “Available Upgrades” in Chapter 1).
To check for an IRQ line in the Microsoft Windows 98 or Windows Me operating system, perform the following steps: 1. Click the Start button, point to Settings, and click Control Panel. 2. Double-click the System icon. 3. Click the Device Manager tab. 4. Double-click the Computer icon to open the Computer Properties window and view the View Resources tab. To check for an IRQ line in the Microsoft Windows 2000 operating system, perform the following steps: 1.
5. Remove the screw that secures the filler-bracket cap to the back panel of the computer (see Figure 2-8), and remove the filler-bracket cap. filler-bracket cap screw Figure 2-8. Removing the Filler-Bracket Cap 6. Unscrew and remove the metal filler bracket that covers the card-slot opening for the expansion slot you intend to use (see Figure 2-9). filler bracket Figure 2-9.
NOTICE: Use one hand to support the riser board while installing an expansion card into an expansion-card connector. Otherwise, damage to the riser-board connector or system board may occur. 7. Insert the expansion card firmly into the expansion-card connector. A cutout in the card-edge connector aligns with a crossbar in the expansion-card connector. Gently rock the card into the connector until it is fully seated (see Figure 2-10).
11. Replace the riser-board bracket according to the instructions in “Removing and Replacing the Riser-Board Bracket” found earlier in this chapter. 12. Replace the computer cover. 13. See the documentation that came with the expansion card for information on installing any required drivers for your operating system. Removing Expansion Cards 1. Remove the computer cover according to the instructions in “Removing and Replacing the Computer Cover” found earlier in this chapter. 2.
NOTE: Your computer is designed for peak performance with specific DIMMs that are validated through rigorous testing. The system may not recognize other synchronous dynamic random-access memory (SDRAM) DIMMs and may fail power-on self-test (POST). Installing a DIMM 1. Remove the computer cover according to the instructions in “Removing and Replacing the Computer Cover” found earlier in this chapter. 2.
7. Replace the expansion cards, riser-board bracket, and the computer cover, and reconnect your computer and devices to their electrical outlets and turn them on. 8. To enter the system setup program, restart the computer and press when the blue Dell logo screen appears. Verify that the amount displayed for Total Memory on the System Information screen is correct. If the memory total is incorrect, turn off the computer, and remove computer cover, riser-board bracket, and expansion cards.
NOTE: The system memory value reported by the operating system is 1 or 2 MB less than the memory installed because that memory is reserved for video functions. For example, if the computer has 64 MB of system memory, the operating system may report 62 or 63 MB. Replacing the System Battery A 3.0-V CR2032 coin-cell battery mounted in a system board socket (see Figure 2-4) maintains system configuration, date, and time information. The battery can last several years.
screws (2) bezel drive shelf bezel tabs (3) Figure 2-13. Drive Shelf NOTICE: If you pry out the battery with a blunt object, insert the object between the battery and the socket. Otherwise, you may damage the system board by prying off the socket or by breaking circuit traces on the system board. 6. Locate the battery on the system board (see Figure 2-4), and pry it out of its socket with your fingers or with a blunt, nonconductive object, such as a plastic screwdriver.
battery battery socket (BT1) Figure 2-14. System Battery and Battery Socket 8. Lower the drive shelf and replace the two screws that you removed in step 5. 9. Replace the bezel, riser-board bracket, and computer cover, and reconnect your computer and devices to their electrical outlets. 10. Restart the system, press when the blue Dell logo screen appears to enter the system setup program, and restore the correct settings. For instructions, see Appendix B, “System Setup Program.” support.dell.
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CHAPTER 3 Basic Troubleshooting This chapter guides you through some initial checks and procedures that can solve basic computer problems. It can also direct you to the appropriate chapter in this guide for detailed troubleshooting information and procedures to solve more complex problems. You should complete the checks in this chapter before calling Dell for technical assistance; even if these checks do not provide an immediate solution, they can help support technicians diagnose and fix the problem.
If you were trying to install new hardware, double-check configuration settings and available system resources (see “Resolving Software and Hardware Incompatibilities” in Chapter 4). Also make sure you changed the appropriate settings in the system setup program for the system’s new hardware configuration (see Appendix B, “System Setup Program”).
5. Reseat the video-interface cable connectors (blue) in the video connector on the back of the computer and in the connector on the back of the monitor. NOTE: On some monitors, the video interface cable is permanently attached. 6. Turn on the computer, the monitor, and all attached devices. Power If you are experiencing problems with power to your computer, perform the following tasks: • • • • • Check the computer’s and monitor’s power indicators.
Environmental Factors A number of external factors, including temperature extremes and humidity, magnetic influences, sources of electromagnetic interference (EMI), and poor input power or signal quality, can interfere with the performance of your computer and attached devices. Monitors are especially susceptible to these environmental factors.
• • • If you have not already done so, plug the monitor directly into an electrical outlet, bypassing any power protection devices, power strips, and extension cables to verify that the monitor turns on. If the power indicator is not lit, check for a bad power cable by turning off the system and swapping the monitor and computer power cables. Perform the monitor self-test as described in the documentation that came with the monitor.
• 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 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).
If you are experiencing problems with a modem, perform the following checks: • • • • • • • If you have any other telephone devices plugged into this line, such as answering machines, dedicated fax machines, surge protectors or line splitters, then bypass them and plug the modem cable directly into the telephone connector on the wall. Disconnect the cable from the modem and plug it directly into a telephone. Listen for a dial tone.
4. Remove all expansion cards installed in the computer (see “Removing Expansion Cards” in Chapter 2) except the network card to prevent a card that is incorrectly configured from causing an interrupt or input/output (I/O) port resource conflict. 5. Replace the riser-board bracket and computer cover, connect all external cables, and turn on the system. 6. Clear nonvolatile random-access memory (NVRAM) as described in “Clearing NVRAM” in Appendix B. 7.
• • • • • 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 optical drive to “disappear.” Use virus-scanning software to check for and remove any viruses. If Dell installed Windows 98 or Windows Me on your system, you should already have virus-scanning software. Clean the disc with a soft, lint-free cloth and isopropyl alcohol. Try another optical media title.
the diagnostic tests can provide you with important information you will need when talking to Dell's service and support personnel. NOTICE: Use the Dell Diagnostics to test only your Dell computer system. Using this program with other computers may cause incorrect computer responses or result in error messages. The Dell Diagnostics provides a series of menus and options from which you choose particular test groups or subtests. You can also control the sequence in which the tests are run.
3. Change the first bootable device to IDE CD-ROM in the Boot Options screen. Write down the first bootable device option that you are changing (usually Floppy Disk A:) so you can change the setting back after you run the diagnostics. See Appendix B, “System Setup Program,” for more information. 4. Insert the Dell Dimension ResourceCD into the optical drive. 5. Press to exit and save the system setup program settings. 6. When the boot menu appears on the screen, select the 1.
Figure 3-1. Diagnostics Menu Dell Diagnostics Main Screen When you select Select Devices to Test from the DIAGNOSTICS MENU, the main screen of the diagnostics appears (see Figure 3-2). The main screen lists the diagnostic test device groups, lists the devices of the selected device group, and allows you to select options from a menu. From this screen, you can enter two other types of screens.
Figure 3-2. Dell Diagnostics Main Screen Do not be concerned if the Device Groups area does not list the names of all the components or devices you know are part of your computer system. For example, you will not see a mouse listed, although you know one is attached to your computer. If you select the Pointing Devices device group, Mouse is listed under Devices for Highlighted Group. Similarly, you can test your printer connection through the Parallel Ports device group.
Keys Keys explains the functions of all the keystrokes that can be used in the Dell Diagnostics. Device Group Device Group describes the test group that is presently highlighted in the Device Groups list on the main menu screen. It also provides reasoning for using some tests. Device Device is the educational section of the online Help. It describes the function and purpose of the highlighted device in the Device Groups area.
CHAPTER 4 Software Solutions This chapter describes software features and procedures, such as power management features and reinstalling drivers, that can often solve problems with your computer system. Using the Power Management Features in Windows 98, Windows Me, and Windows 2000 For Windows 98, the power management features of your Dell system can be set through the Power Management Properties window.
The Power Schemes tab allows you to select the power scheme (Always On, Home/Office Desktop, or Portable/Laptop) and power mode settings for your computer. For Windows 2000 and Windows Me, the following options are available for each power scheme setting: • • • Turn off monitor — Turns off the monitor so that the system uses less power. You can press any key to turn on the monitor. The Windows desktop is restored exactly as it appeared before the monitor was turned off.
Your System’s Drivers The device drivers that can be reinstalled on your system are listed below: • • • • • Intel Chip Set Update Utility Driver — Installs Windows device installation files (.inf) that tell the operating system how certain chip set components should be configured for proper operation. Intel Security Driver — Provides a heightened level of security for transmitting data across a network or across the Internet.
7. Click Next. 8. Change the language in the Language list located in the upper-right corner of the window, if needed. 9. Select the model of your computer in the System Model list. 10. Select your computer’s operating system in the Operating System list. 11. Select the type of device in the Device Type list. 12. Select Drivers in the Topic list. 13. Click the name of the driver that you want to reinstall.
3. Click the Device Manager tab. 4. In the Device Manager list, check for conflicts with other devices. Conflicts are indicated by a yellow exclamation point (!) beside the conflicting device or a red X if the device has been disabled. 5. Double-click the malfunctioning device type in the Device Manager list. 6. Double-click the icon for the specific device in the expanded list. The Properties window appears.
You can also use the Windows 2000 Hardware Conflict Troubleshooter. To use the troubleshooter, click the Start button and click Help. Double-click Troubleshooting and Maintenance on the Contents tab, and then double-click If you have a hardware conflict. Windows NT To check for conflicts on a computer running Windows NT, perform the following steps: 1. Open the Event Viewer in the Administrative Tools (Common) folder, and check for any relevant event log messages. 2.
8. Remove the operating system CD from the CD-ROM or DVD-ROM drive and click OK to restart your system. The Getting ready to run Windows for the first time screen appears. 9. If the mouse tutorial starts, press to exit and then press y. 10. Click the regional setting closest to where you live and click Next. 11. Click your keyboard layout and click Next. 12. In the User Information window, type your name and, if applicable, company name, and then click Next.
Reinstalling Windows Me NOTICE: The operating system CD provides options for reinstalling your Windows Me operating system. The options can potentially overwrite files installed by Dell and possibly affect programs installed on your hard drive. Therefore, Dell does not recommend that you reinstall your operating system unless instructed to do so by a Dell technical support representative.
15. Click Finish. Windows Setup installs necessary files, and then restarts the system. 16. Select Boot From Hard Drive, and then press . 17. In the User Information window, type your name and, if applicable, company name, and then click Next. The Name field must be completed; the Company Name field is optional. The License Agreement window appears. 18. Click I accept the Agreement, and then click Next. 19. Type the Windows product key in the fields provided, and then click Next.
6. Read the information in the License Agreement screen, and then press to continue. 7. When the Windows 2000 Professional Setup screen appears, use the arrow keys to select the Windows 2000 partition option that you want. To continue, press the key specified in the partition option that you chose. 8. When the Windows 2000 Professional Setup screen reappears, use the arrow keys to select the type of filing system that you want Windows 2000 to use, and then press . 9.
CHAPTER 5 Checking Inside Your Computer This chapter describes troubleshooting procedures for expansion cards and system memory. Some procedures require you to access the inside of the computer and remove and reinstall components. Procedures are also included for checking a wet or damaged computer. CAUTION: Before completing any of the procedures in this chapter, be sure to follow the procedures in “Safety First—For You and Your Computer” in Chapter 2.
fully seated not fully seated Figure 5-1. Expansion-Card Installation front edge not seated bracket caught in slot Figure 5-2.
The following subsections provide troubleshooting procedures for some specific types of expansion cards. 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) conflicts Incorrect drivers installed Incorrect software configuration To troubleshoot a modem card, perform the following steps: 1. Check for modem IRQ conflicts.
7. 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 the Serial Port 1 is set to Enabled. 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.
9. c. Replace the patch cable or network cable from the wall jack to the computer. d. If replacing the patch cable or network cable does not solve the problem, try moving the computer to a known good location on the network. e. If you still cannot connect to the network, ensure that the right drivers are being used. If the network card is still not detected, see Chapter 6, “Getting Help,” for information on obtaining technical assistance. If the network card is detected, repeat step 1.
5. Check the DIMMs and DIMM sockets for broken tabs and damaged connectors. If a module is damaged, replace it. If a DIMM socket is damaged, see Chapter 6, “Getting Help,” for instructions on obtaining technical assistance. 6. Reinstall the DIMMs as described in “Installing a DIMM” in Chapter 2. 7. Replace the expansion cards and the riser-board bracket. 8. Replace the computer cover, reconnect the system to an electrical outlet, and turn on the system. 9.
9. Remove the riser-board bracket. 10. Reinstall all the expansion cards you removed in step 5, replace the riser-board bracket, and replace the computer cover. See “Installing Expansion Cards” in Chapter 2 for instructions. 11. Insert the Dell Dimension ResourceCD into the optical drive. NOTES: For systems running Windows 98 or Windows Me, also insert the Microsoft Windows 98 Boot Disk or Microsoft Windows Me Boot Disk into the diskette drive.
4. Insert the Dell Dimension ResourceCD into the optical drive. NOTES: For systems running Windows 98 or Windows Me, also insert the Microsoft Windows 98 Boot Disk or Microsoft Windows Me Boot Disk into the diskette drive. For systems running Windows NT, also insert the Hard Drive Diagnostics and Utilities diskette included with your computer system or any MS-DOS bootable diskette into the diskette drive. 5. Turn on the computer system.
CHAPTER 6 Getting Help This chapter describes the tools Dell provides to help you when you have a problem with your computer. It also tells you when and how to call Dell for technical or customer assistance. Technical Assistance If you need assistance with a technical problem, perform the following steps: 1. Complete the basic troubleshooting checks described in “Checking the Basics” in Chapter 3. 2. Run the Dell Diagnostics as described in “Running the Dell Diagnostics” in Chapter 3. 3.
Help Tools Dell provides a number of tools to assist you. These tools are described in the following sections. NOTE: Some of the following tools are not always available in all locations. Please call your local Dell representative for information on availability. World Wide Web The Internet is your most powerful tool for obtaining information about your computer and other Dell products. From Dell's World Wide Web home page (http://www.dell.
• Electronic Quote Service apmarketing@dell.com (for Asian/Pacific countries only) sales@dell.com • Electronic Information Service info@dell.com Automated Order-Status System You can call this automated service to check on the status of any Dell products that you have ordered. A recording prompts you for the information needed to locate and report on your order. For the telephone number to call, refer to “Dell Contact Numbers” found later in this chapter.
Returning Items for Warranty Repair or Credit Prepare all items being returned, whether for repair or credit, as follows: 1. Call Dell to obtain an authorization number, and write it clearly and prominently on the outside of the box. For the telephone number to call, refer to “Dell Contact Numbers” found later in this chapter. 2. Include a copy of the invoice and a letter describing the reason for the return. 3.
Diagnostics Checklist Name: ______________________________________________________________Date: ______________________ Address: ________________________________________________________Phone number: _________________ Service tag (bar code on the back of the computer): _________________________________________________ Return Material Authorization Number (if provided by Dell support technician): ___________________________ Operating system and version: _________________________________________________________
Dell Contact Numbers Table 6-1 provides area codes and telephone numbers for each department or service available in Japan. Table 6-1. Dell Contact Numbers Country (City) Department Name or Service ber Japan (Kawasaki) Technical Support (Server) Area Code Local Number or Toll-Free Num- . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . toll free: 0120-1984-35 Technical Support (Dimension™ and Inspiron™) . . . . . . . . . . . . . . . . . . . . . . . . . . .
APPENDIX A System Specifications Table A-1. Technical Specifications Microprocessor Microprocessor type . . . . . . . . . . . . . . . . Intel Socket 370 Pentium III processor that runs at an external speed of 100 MHz or an Intel Socket 370 Celeron processor that runs at an external speed of 66 MHz L1 cache . . . . . . . . . . . . . . . . . . . . . . . . . 32 KB (16-KB data cache; 16-KB instruction cache) L2 cache . . . . . . . . . . . . . . . . . . . . . . . . . 128-KB SDRAM Math coprocessor . . . . . .
Table A-1. Technical Specifications (continued) Expansion Bus (continued) Expansion-card connectors . . . . . . . . . . . . supports two one-third–length PCI expansion cards Expansion-card connector size . . . . . . . . . 120 pins ACPI specification . . . . . . . . . . . . . . . . . . . 1.0a Expansion-card connector data width (maximum) . . . . . . . . . . . . . . . . . . . 32 bits System Clock System clock . . . . . . . . . . . . . . . . . . . . . . .
Table A-1. Technical Specifications (continued) Drives Externally accessible . . . . . . . . . . . . . . . . . one 3.5-inch bay for a slim-height 3.5-inch diskette drive; one 5.25-inch bay for a slimheight optical drive Internally accessible . . . . . . . . . . . . . . . . one bay for 1-inch–high IDE hard-disk drive Ports and Connectors Externally accessible: Serial (DTE). . . . . . . . . . . . . . . . . . . . 9-pin connector; 16550-compatible Parallel . . . . . . . . . . . . . . . . . . . . . . .
Table A-1. Technical Specifications (continued) Video (continued) Video resolutions. . . . . . . . . . . . . . . . . . . . 800 x 600 pixels; 75-Hz refresh rate with 16.7 million colors 1024 x 786 pixels; 75-Hz refresh rate with 64,000 colors 1280 x 1024 pixels; 75-Hz refresh rate with 256 colors 1600 x 1200 pixels; 75-Hz refresh rate with 256 colors Controls and Indicators Power control . . . . . . . . . . . . . . . . . . . . . . push button Power indicators . . . . . . . . . . . . . . . . . . . .
Table A-1. Technical Specifications (continued) Environmental Temperature: Operating . . . . . . . . . . . . . . . . . . . . . 10° to 35°C (50° to 95°F)* Storage . . . . . . . . . . . . . . . . . . . . . . . –40° to 65°C (–40° to 149°F) Relative humidity: Operating . . . . . . . . . . . . . . . . . . . . . 20% to 80% (noncondensing) Storage . . . . . . . . . . . . . . . . . . . . . . . 5% to 95% (noncondensing) Maximum vibration: Operating . . . . . . . . . . . . . . . . . . . . . 0.
A-6 Dell Dimension 900 System Reference and Troubleshooting Guide
APPENDIX B System Setup Program This appendix describes the system setup program, which you can use to configure your computer as well as enable and disable your computer’s password features. Each time you turn on or restart your computer, the system compares the installed hardware to the hardware listed in the configuration information stored in nonvolatile random-access memory (NVRAM) on the system board.
Table B-1. System Setup Navigation Keys Keys Action Moves the highlight bar up or down to select an item. or Selects the submenu for the current option. Returns to selected screen from the Key Help Guide. Switches to full screen mode. Returns to the parent menu; from the Main screen, prompts you to exit with or without saving changes. or Moves the cursor to the previous or next menu option. Moves the screen page up and down. or Moves the cursor to the beginning of the page.
System Setup Screens and Options The system setup screens are organized as follows: • • • • The left side of each screen lists options that define the installed hardware in your system. The right side of each screen displays options that contain settings or values that you can change. Values that are grayed out contain status information reported by the system.
Main Screen Figure B-1. Main Screen Menu Table B-2. Main Screen Menu Options Option Function System Information Displays the System Information screen. See “System Information Screen” found later in this appendix. Product Information Displays the Product Information screen. See “Product Information Screen” found later in this appendix. Disk Drives Displays the Disk Drives screen. See “Disk Drives Screen” found later in this appendix. Onboard Peripherals Displays the Onboard Peripherals screen.
System Information Screen Figure B-2. System Information Screen Menu Table B-3. System Information Screen Menu Options Option Function None Displays a compilation of the present settings of the basic system configuration. NOTE: The Glossary in the system Help defines abbreviations and acronyms. support.dell.
Product Information Screen Figure B-3. Product Information Screen Menu Table B-4. Product Information Screen Menu Options Option Function None Displays system product version numbers and identification codes. NOTE: The Glossary in the system Help defines abbreviations and acronyms.
Disk Drives Screen Figure B-4. Disk Drives Screen Menu Table B-5. Disk Drives Screen Menu Options Option Function Floppy Drive A Selects the type of diskette drive. Valid selections are 1.44 MB, 3.5-inch (default); 2.88 MB, 3.5-inch; 720 KB, 3.5-inch; or None. Floppy Drive B Because the chassis supports only one diskette drive, this option should be set to None. IDE Primary Channel Master Identifies the first drive attached to the primary EIDE interface, usually the boot hard-disk drive.
IDE Primary Channel Master Submenu Figure B-5. IDE Primary Channel Master Submenu Table B-6. IDE Primary Channel Master Submenu Options Option Function Device Detection Mode Specifies the mode of device detection on the channel. Selections are Auto (default), User, and None. Device Type Displays the device type as Hard Disk, CD-ROM, DVD-ROM, or None. Cylinder If you set Device Detection Mode to User, you can enter the number of cylinders from 0 to 16383.
Onboard Peripherals Screen Figure B-6. Onboard Peripherals Screen Menu Table B-7. Onboard Peripherals Screen Menu Options Option Function Serial Port Configures the serial port. Set this option to Enabled (default) or Disabled. If set to Enabled, you can set the following additional options: Base Address Available base I/O addresses are 3F8h (default), 3E8h, 2F8h, and 2E8h. IRQ Available interrupts are 4 (default) and 3. Parallel Port Base Address Configures the parallel port.
Table B-7. Onboard Peripherals Screen Menu Options (continued) Option Function IRQ If port is set to Enabled, available interrupts are 7 (default) and 5. Operation Mode Sets parallel port to EPP (default), ECP, Standard, or Bi-Directional mode of operation. NOTE: See the device manufacturer's documentation for information on which mode to use before changing this setting. ECP DMA Channel If operation mode is set to ECP, sets the DMA channel to 1 (default) or 3.
Boot Options Screen Figure B-7. Boot Options Screen Menu Table B-8. Boot Options Screen Menu Options Option Function Boot Sequence Determines the sequence of the first, second, and third boot devices. The selections are Floppy Disk A:, Hard Disk C:, and IDE CD-ROM. NOTE: If a NIC card is installed, it appears as a fourth boot device. Primary Display Adapter Configures the primary display device.
Table B-8. Boot Options Screen Menu Options (continued) Option Function Num Lock After Boot Determines whether the keyboard’s Num Lock mode remains on after the system boots. The selections are Disabled (default) and Enabled. Memory Test Configures memory testing during boot. If Fast Boot is Disabled, boot memory testing can be Disabled (default) or Enabled. Configuration Table Displays the system configuration table at boot. Set to Enabled (default) or Disabled.
Date and Time Screen Figure B-8. Date and Time Screen Menu Table B-9. Date and Time Screen Menu Options Option Function Date Resets the date on the computer’s internal calendar. Time Resets the time on the computer’s internal clock. NOTE: The Glossary in the system Help defines abbreviations and acronyms. support.dell.
System Security Screen Figure B-9. System Security Screen Menu Table B-10. System Security Screen Menu Options Option Function Supervisor Password Sets, changes, or cancels a supervisor password. User Password Sets, changes, or cancels a user password. Floppy Drive Provides security for the diskette drive. Selections are Normal (default), Write Protect All Sectors, and Write Protect Boot Sector. Hard Disk Drive Provides security for the hard-disk drive.
Advanced Options Screen Figure B-10. Advanced Options Screen Menu Table B-11. Advanced Options Screen Menu Options Option Function Memory/Cache Options Displays the Memory/Cache Options screen. See “Memory/Cache Options Submenu” found later in this appendix. PnP/PCI Options Displays the PnP/PCI Options screen. See “PnP/PCI Options Submenu” found later in this appendix. NOTE: The Glossary in the system Help defines abbreviations and acronyms. support.dell.
Memory/Cache Options Submenu Figure B-11. Memory/Cache Options Submenu Table B-12. Memory/Cache Options Submenu Options Option Function Level 1 Cache Sets Level 1 cache to Enabled (default) or Disabled. Level 2 Cache Sets Level 2 cache to Enabled (default) or Disabled. Memory at 15MB16MB Reserved for Reserves system memory at 15 MB to 16 MB for use by System (default) or Add-on Card. CPU Frequency Multiplier Sets the CPU frequency multiplier at 3X (default), 3.5X, 4X, 4.5X, 5X, 5.5X, 6X, 6.
PnP/PCI Options Submenu Figure B-12. PnP/PCI Options Submenu Table B-13. PnP/PCI Options Screen Submenu Options Option Function PCI IRQ Setting Allows the PCI IRQ settings to be assigned automatically if set to Auto (default) or manually if set to Manual. If set to Manual, you can set the following additional options: PCI Slot 1 If PCI IRQ Setting is set to Manual, the expansion card in PCI slot 1 can be manually assigned to interrupt 03, 05, 09, 10, or 11.
Table B-13. PnP/PCI Options Screen Submenu Options (continued) Option Function Graphics Aperture Size Sets the graphics aperture size to 4, 8, 16, 32, 64, 128, or 256 MB. Plug and Play OS Set to Yes (default) to allow the operating system to handle all Plug and Play operation. Set to No to allow the BIOS to handle the Plug and Play operation. Reset Resource Assignments Set to No (default) to retain ESCD data. Set to Yes to clear ESCD data.
5. Move the password jumper (JP6) to the “bypass” setting described in “Password Jumper” in Chapter 2. 6. Replace all expansions cards and the riser-board bracket. 7. Replace the computer cover. 8. Attach the computer to the electrical outlet and turn it on. 9. Enter the system setup program and assign a new supervisor or user password in the System Security menu (see Figure B-9). 10. Exit and save the system setup program settings. 11.
10. Move the NVRAM jumper (JPX2) to the “retain” setting described in “NVRAM Jumper” in Chapter 2. 11. Replace all expansions cards, the riser-board bracket, and the computer cover. 12. Attach the computer to the electrical outlet, and turn it on.
APPENDIX C Beep Codes and System Messages Your application programs, the operating system, and the computer itself can provide you with error and status information in the form of beep codes that sound through the computer’s speaker or messages that appear on the monitor screen. This appendix documents the beep codes and system messages generated by the system basic input/output system (BIOS). For other messages, see the documentation for your application program or operating system.
Table C-1. POST Beep Codes (continued) Beep Code Possible Cause Corrective Action 2-2-2-1-1 66-MHz SDRAM DIMM is installed. Replace with 100-MHz SDRAM DIMMs from Dell. See “Adding Memory” in Chapter 2. 2-2-2-1-1-1 Registered DIMM is installed. Replace with 100-MHz SDRAM DIMM from Dell. See “Adding Memory” in Chapter 2. NOTE: The Glossary in the system Help defines abbreviations and acronyms.
Table C-2. System Messages (continued) Message Possible Cause Corrective Action Expansion ROM Allocation Fail The I/O expansion ROM fails to allocate for an expansion card. Turn off the computer and disconnect your system and devices from their electrical outlets. Remove both of the cards. (See “Expansion Cards” in Chapter 5.) Reconnect the system and devices and reboot the computer. If the message persists, the expansion card may be malfunctioning.
Table C-2. System Messages (continued) Message Possible Cause Corrective Action Memory Error at MMMM:SSSS: OOOOh (R:xxxxh, W:xxxxh) One or more DIMMs may be faulty or improperly seated. See “System Memory” and “Reseating DIMMs” in Chapter 5. NVRAM checksum Error An NVRAM checksum error has occurred. Run the System Board Devices tests as described in “Running the Dell Diagnostics” in Chapter 3. See “Clearing NVRAM” in Appendix B.
Table C-2. System Messages (continued) Message Possible Cause Corrective Action Press key to enter SETUP or F1 key to Continue... A system configuration error is detected, or the hardware configuration does not match the system setup program configuration data. Check the system setup program settings. See Appendix B, “System Setup Program.” Press to turn off NMI, or any key to reboot A non-maskable interrupt (NMI) has occurred.
C-6 Dell Dimension 900 System Reference and Troubleshooting Guide
APPENDIX D Regulatory Notices Electromagnetic Interference (EMI) is any signal or emission, radiated in free space or conducted along power or signal leads, that endangers the functioning of a radio navigation or other safety service or seriously degrades, obstructs, or repeatedly interrupts a licensed radio communications service.
Information Technology Equipment (ITE), including peripherals, expansion cards, printers, input/output (I/O) devices, monitors, and so on, that are integrated into or connected to the system should match the electromagnetic environment classification of the computer system. A Notice About Shielded Signal Cables: Use only shielded cables for connecting peripherals to any Dell device to reduce the possibility of interference with radio communications services.
VCCI-A Figure D-1. VCCI Class A ITE Regulatory Mark Class B ITE This is a Class B product based on the standard of the Voluntary Control Council for Interference (VCCI) for information technology equipment. If this equipment is used near a radio or television receiver in a domestic environment, it may cause radio interference. Install and use the equipment according to the instruction manual. Figure D-2. VCCI Class B ITE Regulatory Mark Battery Disposal Your computer system uses a lithium-ion battery.
D-4 Dell Dimension 900 System Reference and Troubleshooting Guide
Index A Advanced Options screen, system setup program, B-15 assistance technical, 6-1 telephone numbers, 6-6 warranty repair or credit, 6-4 audio driver, 4-3 B battery location, 2-6 replacing, 2-19 beep codes, C-1 Boot Options screen, system setup program, B-11 Boot-block jumper settings, 2-10 C cache memory, A-1 calling Dell, 6-6 cautions, x chassis.
D E Date and Time screen, system setup program, B-13 electrostatic discharge. See ESD Dell Diagnostics, 3-9 error messages invalid configuration information, B-1 list, C-2 Dell Dimension ResourceCD, 3-9, 4-2 ESD, viii diagnosing problems, 3-1, 6-1 expansion cards about, 2-12 connectors, 2-12 installing, 2-13 removing, 2-16 troubleshooting, 5-1 DC power cables, 2-4 Diagnostics Checklist, 6-5 diagnostics.
integrated drive electronics. See IDE interface cables about, 2-4 Internet help tools, 6-2 N nonvolatile random-access memory.
power supply cables. See DC power cables support technical, 6-1 power-on self-test. See POST system.
T V technical assistance obtaining, 6-1 warranty repair or credit, 6-4 video controller, 1-2 technical specifications, A-1 troubleshooting about, 1-3 basic problems, 3-2 beep codes, C-1 checking connections, 3-2 Diagnostics Checklist, 6-5 drives, 3-8 environmental factors, 3-4 error messages, C-2 expansion cards, 5-1 hard-disk drives, 3-9 Internet tools, 6-2 modem, 3-6, 5-3 monitor, 3-4 optical drives, 3-8 power, 3-3 speakers, 3-6 start-up routine, 3-3 system memory, 5-5 where to start, 3-1 virus-scann
6 Dell Dimension 900 System Reference and Troubleshooting Guide
