Dell Dimension XPS T Series Owner's Manual
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Dell Dimension XPS T Series Owner's Manual

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Dell™ Dimension™ XPS Txxx and Txxxr Systems Reference
Preface
Technical Overview
Controls and Indicators
Drivers
System Codes and Messages
System Setup Program
Specifications
Removing and Replacing Parts
Documentation
Information in this document is subject to change without notice.
© 1999–2000 Dell Computer Corporation. All rights reserved.
Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden.
Trademarks used in this text: Dell, Dimension, and the DELL logo are trademarks of Dell Computer Corporation; Microsoft, Windows, and Windows NT are registered
trademarks of Microsoft Corporation; Intel and Pentium are registered trademarks of Intel Corporation; VESA is a registered trademark of Video Electronics Standards
Association; Adobe is a trademark of Adobe Systems Incorporated, which may be registered in certain jurisdictions.
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. Dell Computer Corporation
disclaims any proprietary interest in trademarks and trade names other than its own.
Model MMS
Initial release: 26 Feb 1999
Last revised: 18 May 2000

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  • Page 1 Association; Adobe is a trademark of Adobe Systems Incorporated, which may be registered in certain jurisdictions. 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. Dell Computer Corporation disclaims any proprietary interest in trademarks and trade names other than its own.

  • Page 2: Diagnostic Codes

    Back to Contents Page System Codes and Messages: Dell™ Dimension™ XPS Txxx and Txxxr Systems Reference Diagnostic Codes • POST Beep Codes • System Messages Diagnostic Codes Your system is equipped with four diagnostic code indicators, which are labeled "A," "B," "C," and "D" on the back of the computer. Each of the...

  • Page 3: Post Beep Codes

    and then restart the system. If the problem persists, refer to Chapter 7, "Getting Help," of the Reference and Troubleshooting Guide for instructions on obtaining technical assistance. Microprocessor has failed a BIOS Reseat the microprocessor.  If the  test. problem persists, refer to Chapter 7, "Getting Help,"...

  • Page 4: System Messages

    Table 2. System Beep Codes Beep Codes Possible Cause Corrective Action No video card detected Reseat the video card. 1-2-2-3 BIOS ROM checksum error Refer to Chapter 7, "Getting Help," of the Reference and Troubleshooting Guide for instructions on obtaining technical assistance.
  • Page 5 Invalid system configuration data The system configuration information in the Enter the system setup program and verify the system setup program is incorrect, or the system configuration; then restart the system. battery charge may be low. Keyboard controller error The keyboard controller failed its test. If you receive this message after making changes in the system setup...
  • Page 6 UMB Upper limit segment address: Displays the address nnnn of the upper limit of No action is necessary. nnnn the UMB, indicating released segments of the BIOS which may be reclaimed by a virtual memory manager. Video BIOS shadowed The video BIOS has been successfully copied No action is necessary.
  • Page 7 Back to Contents Page Controls and Indicators: Dell™ Dimension™ XPS Txxx and Txxxr Systems Reference Front Panel • Back Panel Front Panel 1 Power button — Turns computer on and off. 2 Power indicator — Lights up when the computer is on. 3 Diskette-drive access indicator — Lights up when a diskette drive is being accessed.

  • Page 8: Printed Documentation

    Getting Started Sheet (.pdf) (5070 KB) Dell Dimension Systems Setup Guide (.pdf) (418 KB) Dell Dimension XPS Txxx and Txxxr Systems Reference and Troubleshooting Guide (.pdf) (3185 KB) NOTES: PDF files require Adobe™ Acrobat Reader, which can be downloaded from the Adobe World Wide Web site at  http://www.adobe.com/acrobat/. To view a PDF file, launch Acrobat Reader. Click File–> Open and select the PDF file.
  • Page 9 Device problems can often be corrected by reinstalling the appropriate drivers. Also, hardware manufacturers frequently provide updated drivers that support feature enhancements or that correct problems. Obtain updated drivers for products purchased from Dell at the support section of the Dell World Wide Web site (http://support.dell.com).
  • Page 10 2. Insert the Dell Dimension ResourceCD into the CD-ROM drive. When the Dell Dimension ResourceCD screen appears, click the right-arrow button. 3. The first time that you use the Dell Dimension ResourceCD, you are prompted to select a language. Select the language of your choice, and click OK.
  • Page 11 Back to Contents Page EIDE Subsystem: Dell™ Dimension™ XPS Txxx and Txxxr Systems Reference The enhanced integrated drive electronics (EIDE) subsystem includes 2 EIDE interfaces (primary and secondary), each of which can support up to 2 EIDE devices such as high-capacity EIDE hard-disk drives, CD-ROM drives, and tape drives.

  • Page 12: Notes, Notices, And Cautions

    Back to Contents Page Preface: Dell™ Dimension™ XPS Txxx and Txxxr Systems Reference Notes, Notices, and Cautions • Typographical Conventions Notes, Notices, and Cautions Throughout this guide, blocks of text may be accompanied by an icon and printed in bold type or in italic type. These blocks are notes, notices, and cautions, and they are used as follows: NOTE: A NOTE indicates important information that helps you make better use of your computer system.
  • Page 13 Back to Contents Page Removing and Replacing Parts: Dell™ Dimension™ XPS Txxx and Txxxr Systems Reference Overview • Precautionary Measures • Recommended Tools • Cover and Support Beam • Bezel • Drive Cage • 3.5-Inch Front-Panel Insert • 5.25- Inch Front-Panel Insert • Upper 3.5-Inch Drive • Lower 3.5-Inch Drive • 3.5-Inch Diskette Drive • 5.25-Inch Drive • Primary Hard-Disk Drive • ...
  • Page 14 1 Cover-mounting thumbscrew 2 Chassis foot 3 Cover release latches (2) To remove the computer cover and support beam from a desktop or mini tower system, perform the following steps: 1. If you are working on a mini tower system, lay the computer on its right side with the chassis foot off the edge of the work surface to allow the computer to lay flat as shown in the illustration above.

  • Page 15: Drive Cage

    5 Hinged tabs (2) To replace the computer cover and support beam on a desktop or mini tower chassis, perform the following steps: 1. Slip the beam’s hinged tabs into their slots and lower the beam. Then place the lock tab into its fastener, and press down on the front end of the beam until it snaps into position.
  • Page 16 4 Tabs (6) To remove the drive cage, perform the following steps: Remove the bezel. 2. Note the location and orientation of all cables attached to the drives in the drive cage, then disconnect the cables. 3. Remove the screw that secures the drive cage to the chassis. 4.
  • Page 17 1 Tabs (2) 2 Front-panel insert 3 Retaining hook The insert for the lower 5.25-inch bay is mounted to the drive cage. Press in the two tabs on the right side, and rotate the insert toward you until the retaining hook disengages from the drive cage. Reinstall the insert by fitting the hook into the slot on the left side of the drive cage, rotating the insert into place, and snapping the tabs on the right side of the insert into the slots in the drive cage.

  • Page 18: Inch Diskette Drive

    Lower 3.5-Inch Drive NOTE: This drive bay is used only in mini tower systems. 1 Drive-mounting screws (3) To remove the lower 3.5-inch drive, perform the following steps: Remove the bezel. Remove the drive cage. 3. Remove the three drive-mounting screws, one from the bottom and two from the left side. 4.

  • Page 19: Inch Drive

    5.25-Inch Drive 1 Drive-mounting screws (3) To remove the 5.25-inch drive, perform the following steps: Remove the bezel. Remove the drive cage. 3. Remove the three drive-mounting screws, and slide the drive out of the drive bay. When you replace a drive, set the jumpers on the replacement drive to match the jumpers on the drive you removed. For additional information about jumper settings on EIDE drives, see EIDE Subsystem.

  • Page 20: Secondary Hard-Disk Drive

    Secondary Hard-Disk Drive 1 Secondary hard-disk drive assembly 2 Card guide assembly 3 Drive-assembly mounting screws (2) To remove the secondary hard-disk drive, perform the following steps: Remove the bezel. 2. Disconnect the DC power and interface cables from the back of the drive. 3.

  • Page 21: Power Supply

    When you reinstall the hard-disk drive assembly, make sure that the rails on the assembly slide into the grooves of the card guide assembly. Power Supply 1 Power-supply mounting screws (2) 2 Power supply To remove the power supply, perform the following steps: 1.

  • Page 22: Control Panel Board

    chassis. Card Guide Assembly   1 Card guide assembly 2 Mounting tabs (4) 3 J8H1 connector 4 Tab To remove the card guide assembly, perform the following steps: 1. Disconnect any cables connected to full-length expansion cards, and remove these expansion cards.

  • Page 23: Expansion Cards

    1 Control panel board 2 Mounting tab 3 Card guide assembly To remove the control panel board, perform the following steps: Remove the bezel. Remove the card guide assembly. 3. Press the mounting tab to release the control panel board from the card guide assembly, and remove the control panel board. Expansion Cards  ...
  • Page 24 1 Cutout 2 Securing tabs (2) 3 Crossbars in central groove of socket (2) To install a DIMM, perform the following steps: 1. Orient the DIMM so that the cutouts on its edge connector align with the crossbars in the central groove of the socket. 2.

  • Page 25: System Board

    7. Insert a diskette copy of the Dell Diagnostics into the diskette drive and restart the system. Run the System Set test group in the Dell Diagnostics. If the tests do not complete successfully, refer to Chapter 7, "Getting Help," in the Dell Dimension XPS Txxx and Txxxr Systems Reference and Troubleshooting Guide for instructions on obtaining technical assistance.
  • Page 26 1 3.5-inch diskette drive 2 Secondary hard-disk drive bracket 3 System board 4 I/O gasket 1. If possible, enter the system setup program and print the system setup screens by pressing the <Print Screen> key before you turn off the computer because you will have to restore the configuration information after the system board is replaced.
  • Page 27 1 System board-mounting bracket 2 Mounting screw 9. Lift the system board from the three plastic standoffs that secure the system board to the chassis. 10. Carefully lift the system board out from the I/O gasket (see System Board), and remove the board from the computer. NOTE: You may need to slide the board toward the front of the computer to clear the hooked standoffs before you can lift the board from the computer.
  • Page 28 The computer automatically starts the system setup program, adds the Maintenance option to the menu bar, and displays the Maintenance screen. 3. Select Clear All Passwords and press <Enter> twice. 4. Press <F10> to exit the system setup program and save any changes you made. 5.

  • Page 29: System Information

    Back to Contents Page Specifications: Dell™ Dimension™ XPS Txxx and Txxxr Systems Reference General • System Information • Expansion Bus • Memory • Drives • Ports • Video • Audio • Power • Physical • Environmental • Regulatory Notices • IRQ Assignments • Default Dell-Installed Expansion Card Placements • DMA Assignments General Microprocessor type Intel® Pentium® III microprocessor that runs at 100 MHz externally...
  • Page 30 ISA expansion-card connector data width (maximum) 16 bits Memory Architecture ECC or non-ECC SDRAM modules DIMM sockets three; gold contacts DIMM capacities 32, 64, 128, and 256 MB Minimum RAM 64 MB (non-ECC) Maximum RAM 768 MB Frequency 100 MHz Clock cycle 10 ns (supports 4 clocks only) CAS latency...
  • Page 31 Secondary EIDE 40-pin connector Diskette drive 34-pin connector * Available in integrated audio systems only Video Video 2X AGP video card (see manufacturer's specifications for information about the card and any utilities and drivers included) Audio Audio type Integrated Yamaha XG 64 Voice Wavetable Sound Audio chip set Yamaha 724 DS-1 chip set Power...

  • Page 32: Regulatory Notices

    Default Dell-Installed Expansion Card Placement Table 1 provides the default Dell-installed expansion card placements if a system is ordered with a TV tuner card. Table 2 provides the default Dell-installed expansion card placements if a system is ordered without a TV tuner card.

  • Page 33: Dma Channel Assignments

    Audio PCI Slot 4 PCI modem PCI Slot 5/ISA Slot 1 TV Tuner Table 2. Default Dell-Installed Expansion Card Placements for Systems with SCSI (for either SwapBox or TV Tuner Card) Expansion-Card Slot Expansion Card AGP Port AGP video PCI Slot 1...

  • Page 34: Entering The System Setup Program

    To set or change user-selectable options — for example, the user password Dell recommends that you print the system setup program screens (by pressing <Print Screen>) or write down the information for future reference. The system setup screens are organized as follows: At the top is a menu bar for accessing the main program screens.

  • Page 35: Advanced Screen

    Table 1. Main Screen Menu Options Option Function BIOS Version Displays the version of the BIOS being used. Processor Type Displays the type of microprocessor installed. Processor Speed Displays the internal speed of the microprocessor. Processor Serial Number Displays the serial number of the microprocessor when set to Enabled. Disabled (default) turns off the feature. This option does not appear in the menu if the microprocessor does not support the feature.
  • Page 36 Determines whether the system is configured to support Plug and Play devices from the operating system or from the system BIOS. Leave this option set to No so the BIOS handles all Plug and Play operation. NOTE: Be sure this option is set to No before running Dell Diagnostics. Otherwise, some diagnostics may incorrectly fail.
  • Page 37 Option Function Serial port A Configures the serial port. Set this option to Auto (default), Enabled, or Disabled. If set to Enabled, you can set the following additional options: Base I/O Address Available I/O addresses are COM1, COM2, COM3, and COM4. Interrupt Available interrupts are IRQ3 and IRQ4.
  • Page 38 Multi-Sector Transfers Determines the number of sectors per block during multiple-sector transfers. If Type is set to User, set Multi-Sector Transfers to 2 Sectors, 4 Sectors, 8 Sectors, or 16 Sectors or disable the feature. LBA Mode Control Determines LBA mode control. Set to Enable (default) unless directed to change it by a Dell technical support representative. Transfer Mode Selects method of moving data to and from the EIDE drive.
  • Page 39 Diskette controller Configures diskette drive interface. Options are Auto, Enabled (default), and Disabled. Diskette A Identifies the boot diskette drive in the computer. The default is 1.44/1.25 MB 3 1/2". Diskette Write Protect Protects a diskette from being written to when set to Enabled. When this option is set to Disabled (default), the diskette is not protected unless the write-protect tab is in place.

  • Page 40: Security Screen

    Option Function Palette Snooping Allows an ISA expansion card to check a PCI expansion card for an updated graphics palette. If this option is set to Disabled, the ISA expansion card may not be updated along with the PCI expansion card. AGP Aperture Size Sets the aperture size for the AGP video controller to 64 MB (default) or 256 MB.

  • Page 41: Power Screen

    Set User Allows you to assign, change, or clear a user password, which controls access to the computer at start-up. Password Set Setup Allows you to assign, change, or clear a setup password that provides access to both the computer and the system setup Password program.
  • Page 42 Function Boot-time Diagnostic Screen When set to Disabled (default), this option allows only the blue Dell logo screen to appear during POST. If set to Enabled, this option allows the POST diagnostics test results to be displayed on the screen during POST.

  • Page 43: Exit Screen

    Table 13. Hard Drive Submenu Options Option Function The computer system attempts to boot the operating system from the first device listed. To select a new boot device, device designation reorder the list: Use the up- or down-arrow key to highlight a device, and press the plus (+) or minus (-) key to move the item up or down the list.

  • Page 44: Clearing Nvram

    The Intel® Pentium® III microprocessor includes a processor serial number feature designed to provide additional user security and manageability benefits. By default, this feature is disabled on Dell systems to protect your privacy. However, it can be enabled through the Processor Serial Number option in the system setup program.
  • Page 45 Back to Contents Page...
  • Page 46 Back to Contents Page Technical Overview: Dell™ Dimension™ XPS Txxx and Txxxr Systems Reference Internal View of Desktop • Internal View of Mini Tower • Back-Panel Features • System Board Connectors and Sockets • System Board Configuration Jumper • SECC2 Package • Power Supply • DC Power Cables • DC Power Connector Pin Assignments Internal View of Desktop  ...

  • Page 47: Back Panel Features

       1 Power supply 2 DC power cables 3 Diskette-drive interface cable 4 Secondary hard-disk drive bracket 5 Drive cage 6 Drive bays (typical) 7 Power indicator 8 Power button 9 Hard-disk drive access indicator 10 Reset button 11 Bezel 12 Card-guide assembly (contains primary hard-disk drive) 13 Chassis 14 Filler brackets...

  • Page 48: System Board Connectors And Sockets

       1 Voltage selection switch 2 Security cable ring 3 Parallel port connector 4 MIDI/game port connector* 5 Video connector 6 Microphone jack* 7 Line-in jack* 8 Line-out jack* 9 Diagnostic code indicators (4) 10 Serial port connector 11 USB connectors (2) 12 Keyboard connector 13 Mouse connector 14 AC power receptacle...
  • Page 49      1 Chassis cooling-fan connector (J7M1) 2 Power input connector (POWER) 3 3.3-V power input connector (3.3) 4 Diskette-drive interface connector (FLOPPY) 5 SCSI hard-disk drive access-indicator cable connector (J8J1) 6 Control panel connector (J8H1) 7 Primary EIDE channel connector (PRI IDE) 8 Secondary EIDE channel connector (SEC IDE) 9 DIMM sockets (BANK n)
  • Page 50 Clear All Passwords — Disables a forgotten password so that you can access the system and/or assign new passwords. For the complete password procedure, see "Disabling a Forgotten Password" in Appendix B of the Dell Dimension XPS Txxx and Txxxr Systems Reference and Troubleshooting Guide.   SECC2 Package The single-edge contact cartridge 2 (SECC2) package, shown above with the heat sink attached, contains a 242-pin microprocessor card.

  • Page 51: Dc Power Cables

     Power Supply The 200-Watt (W) power supply can operate from an AC power source of 115 volts AC (VAC) at 60 hertz (Hz) or 230 VAC at 50 Hz. The power supply provides the DC operating voltages and currents listed in the following table. NOTE: The power supply produces DC voltages only under its loaded condition.
  • Page 52 1 +5 VDC (red) 2 Common (black) 3 +5 VDC (red) 4 Common (black) 5 PWRGOOD (orange) 6 +5 VFP (purple) 7 +12 VDC (yellow) 8 –12 VDC (blue) 9 Common (black) 10 Common (black) 11 PSON# (brown) 12 Common (black) 13 Common (black) 14 Common (black) 15 –5 VDC (white)
  • Page 53 Figure 4. DC Power Connector P7    1 Common (black) 2 Common (black) 3 Common (black) 4 +3.3 VDC (orange) 5 +3.3 VDC (orange) 6 +3.3 VDC (orange) Back to Contents Page...

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