Dell OptiPlex GXi Service Manual (.pdf)

Dell OptiPlex GXi Manual

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  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 1
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  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 2
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 3
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  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 4
    . Reproduction in any manner whatsoever without the written permission of Dell Computer Corporation is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, and OptiPlex are registered trademarks of Dell Computer Corporation; Intel and Pentium are registered trademarks and MMX is
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 5
    1-10 Built-In Video Controller 1-10 Built-In Audio Controller 1-11 Built-In NIC 1-11 Floor Stand 1-12 Computer Service 1-12 System Power Supply 1-12 Pin Assignments for the DC Power Connectors 1-14 DC Power Distribution 1-15 System Board 1-20 Main Memory 1-21 System Board Jumpers
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 6
    Basic Troubleshooting 2-1 Initial User Contact 2-1 External Visual Inspection 2-2 Observing the Boot Routine -Profile Chassis 4-1 Recommended Tools 4-1 Precautionary Measures 4-2 Computer Cover 4-3 Eject, Power, and Reset Buttons 4-4 4-16 Cache Memory Card 4-17 NIC Daughter Board 4-18 vi
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 7
    5-1 Recommended Tools 5-1 Precautionary Measures 5-2 Floor Stand 5-3 Computer Cover 5-4 Eject, Power, and Reset Buttons 5-5 Front-Panel Cage 5-15 Expansion Card 5-16 Riser Board 5-17 DIMMs 5-18 Cache Memory Card 5-19 NIC Daughter Board 5-20 Microprocessor/Heat Sink Assembly 5-21 System
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    Board 6-19 DIMMs 6-20 Cache Memory Card 6-21 NIC Daughter Board 6-22 Microprocessor/Heat Sink Assembly 6-23 System Battery 6-25 System Board 6-26 Appendix A System Setup Program A-1 System Setup Screens A-2 Index Figures Figure 1-1. Computer Orientation 1-3 Figure 1-2. Front-Panel Features
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    Removal 4-16 Figure 4-15. DIMM Installation 4-16 Figure 4-16. Cache-Memory Card Removal 4-17 Figure 4-17. NIC Daughter-Board Removal 4-18 Figure Board Removal 4-22 Figure 5-1. Floor Stand Removal 5-3 Figure 5-2. Computer Cover Removal 5-4 Figure 5-3. Eject, Power, and Reset Button Removal
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    Removal 5-18 Figure 5-18. DIMM Installation 5-18 Figure 5-19. Cache-Memory Card Removal 5-19 Figure 5-20. NIC Daughter-Board Removal 5-20 Figure Removal 5-23 Figure 5-24. System Board Removal 5-24 Figure 6-1. Computer Cover Removal 6-3 Figure 6-2. Front Bezel Removal 6-4 Figure 6-3. Eject,
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    Removal 6-25 Figure 6-26. System Board Removal 6-26 Figure A-1. System Setup Screens A-2 Tables Table 1-1. Table 1-2. Table 1-3. Table 1-4. Table 1-5. 1-22 Interrupt Assignments 1-23 DREQ Line Assignments 1-24 Technical Specifications 1-25 POST Beep Codes 3-2 System Error Messages 3-5 System
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    addition to information provided in this manual and the User's Guide that came with the system, Dell provides the Diagnostics and Troubleshooting Guide for troubleshooting procedures and instructions on using the Dell diagnostics to test the computer system. Warnings, Cautions, and Notes Throughout
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 13
    for the Midsize and Mini Tower Computers 1- 17 Figure 1-17. DC Power Distribution for the Midsize Computers 1-18 Figure 1-18. DC Power Distribution for the Mini Tower Computers . . . . 1-19 4-14. DIMM Removal 4-16 Figure 4-15. DIMM Installation 4-16 DELL CONFIDENTIAL Preliminary 6/16/97 xiii
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    5-18. DIMM Installation 5-18 Figure 5-19. Cache-Memory Card Removal 5-19 Figure 5-20. NIC Daughter-Board Figure 5-24. System Board Removal 5-24 Figure 6-1. Computer Cover Removal 6-3 Figure 6-2. Front Bezel Removal 6-4 Drive Assembly Removal 6-10 DELL CONFIDENTIAL Preliminary 6/16/97 xiv
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    19. DIMM Removal 6-20 Figure 6-20. DIMM Installation 6-20 Figure 6-21. Cache-Memory Card Removal 6-21 Figure 6-22. NIC Daughter-Board Removal 6-22 Figure 6-23. 6-25 Figure 6-26. System Board Removal 6-26 Figure A-1. System Setup Screens A-2 DELL CONFIDENTIAL Preliminary 6/16/97 xv
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    DELL CONFIDENTIAL Preliminary 6/16/97 xvi
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    3-1. Table 3-2. Table A-1. DC Voltage Ranges 1-13 System-Board Jumper Descriptions 1-22 Interrupt Assignments 1-23 DREQ Line Assignments 1-24 Technical Specifications 1-25 POST Beep Codes 3-2 System Error Messages 3-5 System Setup Categories A-3 DELL CONFIDENTIAL Preliminary 6/16/97 xvii
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 18
    DELL CONFIDENTIAL Preliminary 6/16/97 xviii
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 19
    bus. These buses are built into the system board, which also integrates the microprocessor, memory controller, hard-disk drive controller, video controller, and other elements of the basic computer. The microprocessor for the OptiPlex GXi systems is installed in a ZIF socket, which allows the
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    in this chapter. For a complete list of system features, see "Technical Specifications" found later in this chapter. When following the text in this manual, assume that the location or direction relative to the computer is as shown in Figure 1-1. 1-2 Dell OptiPlex GXi Systems Service Manual
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    back left side right side left side back right side front Low-Profile Computer front Midsize Computer top back front bottom Mini Tower Computer Figure 1-1. Computer Orientation System Overview 1-3
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    hard-disk drive access indicator Midsize Computer diskette-drive access indicator diskette-drive access indicator power button reset button power indicator hard-disk drive access indicator Mini Tower Computer Figure 1-2. Front-Panel Features 1-4 Dell OptiPlex GXi Systems Service Manual
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    selection switch parallel port connector serial port connector mouse connector expansion-card cage expansion-card slots (3) keyboard connector audio connectors (3) USB connectors (2) NIC connector video connector Figure 1-3. Internal View of the Low-Profile Computer System Overview 1-5
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    parallel port connector serial port connector mouse connector keyboard connector USB connectors (2) NIC connector video connector expansion-card cage expansion-card slots (5) audio connectors (3) Figure 1-4. Internal View of the Midsize Computer 1-6 Dell OptiPlex GXi Systems Service Manual
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    video connector microphone jack line-out jack line-in jack padlock ring interface cable expansion-card cage system board riser board Figure 1-5. Internal View of the Mini Tower Computer Advanced Expansion Subsystem The Dell OptiPlex GXi systems offer advanced expansion subsystems that can support
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    expansion-card slots (see Figure 1-8). HDLED connector ISA3 connector ISA2 connector ISA1 connector PCI3 connector PCI2 connector PCI1 connector Figure 1-7. Riser Board for the Midsize Computers (Option 1) 1-8 Dell OptiPlex GXi Systems Service Manual
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    connector PCI1 connector ISA2 connector ISA1 connector PCI3 connector Figure 1-8. Riser Board for the Midsize Computers (Option 2) Mini Tower Computer's Expansion-Card Slots The mini tower computers have seven expansion-card slots. The riser board has four ISA expansion-card connectors and five
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    Controller The video subsystem consists of a high-speed, high-resolution video controller built into the system board. Because the video controller connects to the PCI bus rather than to the ISA bus, communication between the video subsystem and the 1-10 Dell OptiPlex GXi Systems Service Manual
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    output specifications. Built-In NIC The Dell OptiPlex GXi systems have an integrated 10/100-Mbps 3Com® PCI 3C905 Ethernet NIC subsystem. The system contains either a 100BASE-TX or 100BASE-T4 NIC daughter board, depending on network cabling requirements. Both NIC daughter boards support the 10BASE
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    Guide provides instructions for connecting the mini tower computer to, and configuring it for, use on an Ethernet network. A Dell OptiPlex GXi Systems Documentation Update provides instructions for low-profile and midsize computers board or drives. . 1-12 Dell OptiPlex GXi Systems Service Manual
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    1 The combined load on the +5-VDC and +3.3-VDC outputs shall not exceed 105 W on the low-profile computers or 140 W on the midsize computers. 2 Withstands surges of up to 11.0 A to support disk start-up operations. 3 VFP (volts flea power) - sometimes called "standby power." System Overview 1-13
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    VDC (yellow) common (black) common (black) +5 VDC (red) Figure 1-12. DC Power Connectors P2 (Midsize and Mini Tower), P3, P4, P5, P6, and P9 1-14 Dell OptiPlex GXi Systems Service Manual
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    Figures 1-14 through 1-19 provide the following information about DC power distribution: • Power-supply connector identification • Power cable connections for diskette, tape, CD-ROM, and hard-disk drives • Power distribution to sockets and connectors on the system board P1 P2 P4 P3 P5 Figure 1-14
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    memory sockets DIMM_A DIMM_B fuse DIMM_C +5 VFP +5 VDC +5 VDC +5 VDC DIMM_D +5 VDC MICROPROCESSOR processor core regulator +3.3 VDC core VCC +2.1 to +3.5 VDC PANEL USB KYBD MOUSE Figure 1-15. DC Power Distribution for the Low-Profile Computers 1-16 Dell OptiPlex GXi Systems Service Manual
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    P6* P4 P5 P9* P3 P2 P1 P7 * Connector P6 was not present in earlier midsize computers; in these computers, connector P9 was labeled "P6." Figure 1-16. DC Power Cables for the Midsize and Mini Tower Computers System Overview 1-17
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    optional drive P62 optional drive +12 VDC FAN main memory sockets DIMM_A DIMM_B fuse DIMM_C +5 VFP +5 VDC computers have an additional connector (P9) that may be used instead of P5 or P6. Figure 1-17. DC Power Distribution for the Midsize Computers 1-18 Dell OptiPlex GXi Systems Service Manual
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    P3 hard-disk drive P4 3.5-inch diskette drive P5 optional drive P6 optional drive P9 optional drive +12 VDC FAN main memory sockets DIMM_A DIMM_B fuse DIMM_C +5 VFP +5 VDC +5 VDC +5 VDC DIMM_D +5 VDC MICROPROCESSOR processor core regulator +3.3 VDC core VCC +2.1 to +3.5 VDC PANEL
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    (POWER1) front of computer CD-ROM interface connector (CD_IN) secondary EIDE connector (IDE2) 3.3-V power input connector (POWER2) diskette/tape drive interface connector (DSKT) control panel connector (PANEL) Figure 1-19. System Board Components 1-20 Dell OptiPlex GXi Systems Service Manual
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    capacities, but must adhere to the following installation rules: • The memory can support any mixture of 8-, 16-, 32-, 64-, and 128-MB DIMMs Setup program. See the online System User's Guide or Chapter 6, "Installing System Board Options," in the Reference and Installation Guide for additional memory
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    install jumper. NICRST NIC enable or disable Service procedure only - Install jumper, then boot the computer to clear the NIC settings and reset the base address to 200h; then remove the jumper to allow configuration changes. * Not on all systems 1-22 Dell OptiPlex GXi Systems Service Manual
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    (COM1 or COM3) requires service. IRQ5 Available for use by service. IRQ7 Generated by super I/O controller to indicate that device connected to parallel port requires service that device requires service. If the EIDE port to indicate that device requires service. If the EIDE controller is disabled
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    chip to activate second DMA controller DREQ5 Available DREQ6 Available DREQ7 Available NOTE: The built-in sound controller, built-in NIC, and built-in video controllers are assigned available DMA channels automatically during system start-up. 1-24 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 43
    DMA channels seven Interrupt levels 15 Flash EPROM (BIOS) . . . . . 1 Mb Expansion Bus Bus types PCI and ISA (PCI bus complies with PCI specification 2.1) Bus speeds PCI: 33 MHz; ISA: 8.25 MHz PCI expansion-card connectors: Low-profile computers . . . two (one PCI connector and one ISA
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 44
    inch diskette drive; two 5.25-inch bays for diskette drives, tape drives, or CD-ROM drives Mini tower computers . . . . one 3.5-inch bay, dedicated to a 3.5-inch diskette drive; three 5.25-inch bays for diskette drives, tape drives, or CD-ROM drives 1-26 Dell OptiPlex GXi Systems Service Manual
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    or SCSI hard-disk drive and one 1.6-inch-high EIDE or SCSI harddisk drive Video Video type S3 Trio 64V+ 86C765 built-in SVGA controller attached to the PCI bus Video memory 2 MB Maximum video resolution . . . 1280 x 1024 pixels, with 256 colors Ports Externally accessible: Serial (DTE one
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    indicator green LED Link integrity indicator (on NIC connector green LED Activity indicator (on NIC connector yellow LED Power Power supply wattage: Low-profile computers . . . 145 W Midsize computers . . . . . 200 W Mini tower computers . . . . 200 W 1-28 Dell OptiPlex GXi Systems Service Manual
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    Table 1-5. Technical Specifications (continued) Power (continued) Power-supply heat dissipation: Low-profile computers . . . 808 BTUs (nominal) Midsize computers . . . . . 913 BTUs (nominal) Mini tower computers . . . 913 BTUs (nominal) Power supply voltage 90 to 135 V at 60 Hz; 180 to 265 V at 50
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    Table 1-5. Technical Specifications (continued) Environmental (continued) Maximum vibration: Operating 0.25 G at 3 to 200 Hz at 1 octave/min Storage 0.5 G at 3 to 200 Hz at 1 ). Above 914.6 m (3000 ft) the maximum operating temperature is reduced. 1-30 Dell OptiPlex GXi Systems Service Manual
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    a problem or indicate the correct starting point for troubleshooting the system. A brief explanation of how to load and start the diskette-based diagnostics is located at the end of the chapter. Dell recommends that you perform the following procedures in the order they are presented in this manual
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    on the back of the computer as well as to the video monitor controls, see the documentation for the monitor. 7. Inspect the keyboard to ensure that no keys are sticking. If one or more keys are sticking, it may be necessary to replace the keyboard. 2-2 Dell OptiPlex GXi Systems Service Manual
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    several times in order to complete all of these steps. To observe problem indications during the boot routine, follow these steps: 1. Insert the diagnostics diskette into drive A. Turn on all peripherals and the computer. If the computer is already on, press the reset button or to
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    light up during the boot routine, troubleshoot the diskette drive or hard-disk drive subsystem, as appropriate. • System error messages: These messages can indicate problems or pro- vide power cables from their power sources. 2. Remove the computer cover. 2-4 Dell OptiPlex GXi Systems Service Manual
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    to verify that they are firmly attached to their appropriate connectors. 6. Reinstall the computer cover. 7. Reconnect the computer and any attached peripherals to their power sources, and turn them on. Does the problem appear to be resolved? Yes. No further steps are necessary. Terminate the
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    -based diagnostics reveals the source of the problem or leads to the proper troubleshooting steps for determining the source of the problem, call Dell for technical assistance. For instructions, see "Getting Help" in the online System User's Guide. 2-6 Dell OptiPlex GXi Systems Service Manual
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    the boot routine until the indicated condition is corrected. When the system emits a beep code, record the code and then find it in Table 3-1. If the table does not lead to the source of the problem, run the appropriate tests in the diskette-based diagnostics to assist in troubleshooting the problem
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    BIOS or defective system board 1-2-1 Programmable interval-timer Defective system board failure 1-2-2 DMA initialization failure 1-2-3 1-3-1 1-3-2 1-3-3 DMA page register write/ read failure Main-memory refresh verification failure No memory board) 3-2 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 57
    (defective system board) 3-4-2 4-2-1 Search for video ROM failure No timer tick Defective system board 4-2-2 Shutdown failure 4-2-3 Gate A20 failure 4-2-4 4-3-1 4-3-3 4-3-4 4-4-1 4-4-2 4-4-3 4-4-4 Unexpected interrupt in protected mode Memory failure above address 0FFFFh Timer-chip counter
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    help you find the source of a problem. Some of these error messages indicate fatal errors. When a fatal error occurs, the computer cannot usually be rebooted until an appropriate • Timer chip counter 2 failed • Unexpected interrupt in protected mode 3-4 Dell OptiPlex GXi Systems Service Manual
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    Probable Causes Address mark not found BIOS found faulty disk sector or could not Computer received unrecoverable data-read error from diskette or hard-disk drive. Read/write failure during POST prevents system from using available memory. Diskette/tape drive controller could not locate specific
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    failure Hard-disk drive failed to initialize. Incorrect configuration settings in System Setup program, improperly connected hard-disk drive cable, faulty hard-disk drive failed. Defective keyboard/ mouse controller (defective system board). 3-6 Dell OptiPlex GXi Systems Service Manual
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    loose or improperly connected, defective keyboard, or defective keyboard/mouse controller (defective system board). Memory address line failure at address, read value expecting value During memory test, value read at address was incorrect. Faulty or improperly seated DIMMs or defective system
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    drive subsystem. Not a boot diskette No operating system on No operating system on diskette. diskette. Plug and Play Configuration Error System encountered problem in trying to configure one diskette kette or hard-disk drive. or hard-disk drive. 3-8 Dell OptiPlex GXi Systems Service Manual
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    Message Definition Probable Causes Seek error MS-DOS unable to locate specific track on diskette or hard-disk drive. Defective diskette or system board). Time-of-day not set Time or date setting in System Setup program incorrect, or system battery bad. Incorrect Time or Date settings or
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    3-10 Dell OptiPlex GXi Systems Service Manual
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    Chassis This chapter provides procedures for removing the components, assemblies, and subassemblies in the Dell OptiPlex GXi low-profile computer. If you are servicing a Dell OptiPlex GXi midsize or mini tower computer, use Chapter 5, "Removing and Replacing Parts on the Midsize Chassis," or Chapter
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 66
    potential for personal injury. Also, disconnect any telephone or telecommunication lines from the computer. 3. Wear a wrist grounding strap, and clip it to an unpainted metal on the back of the computer to discharge any static charge from your body. 4-2 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 67
    two securing buttons until the cover is free to swing up. 3. Raise the back of the cover and pivot it toward the front of the computer. 4. Lift the cover off of the hooks at the front of the chassis. Three plastic hooks on the inside-front part of the cover secure
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    3. To remove the power button or the reset button, use a small screw- driver and push in on the two or three plastic clips that hold the button to the computer cover. When these clips are released, the button comes free from the front panel of the cover. 4-4 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 69
    down) 5.25-inch frontpanel insert posts (2) ring-tabs (2) Figure 4-3. Front-Panel Insert Removal To remove a front-panel insert, follow these steps: 1. Lay the computer cover upside down on a flat work surface, with the front of the cover facing you. 2. From the front of the cover, use your thumbs
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    panel from the chassis. When you reinstall the control panel, be sure to put the right side of the control panel behind the mounting tab. 4-6 Dell OptiPlex GXi Systems Service Manual
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    Drives Figure 4-5 shows an example of drive hardware that can be installed in the computer. Refer to this figure when you perform any of the procedures in the following subsections. DC power cable 3.5-inch diskette drive diskette/tape drive interface
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    Diskette Drive Assembly drive-mounting screws (2) 3.5-inch diskettedrive-assembly latches (2) front of computer Figure 4-6. 3.5-Inch Diskette Drive Removal hooks (2) To remove the 3.5-inch diskette of the drive engage the two hooks on the bracket. 4-8 Dell OptiPlex GXi Systems Service Manual
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    5.25-Inch Drive Assembly drive-mounting screws (4) front of computer Figure 4-7. 5.25-Inch Drive Assembly Removal To remove a in the order stamped on the bottom of the bracket. Check the alignment of the computer cover around the 5.25-inch drive bezel. Adjust the drive forward or backward on the
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    Hard-Disk Drive Assembly captive screw hard-disk drive mounting screws (4) tabs front of computer notches Figure 4-8. Hard-Disk Drive Assembly Removal To remove the hard-disk drive, notches on the chassis before you rotate the assembly into place. 4-10 Dell OptiPlex GXi Systems Service Manual
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    System Power Supply power supply power-supply mounting screw Figure 4-9. System Power-Supply Removal To remove the system power supply, follow these steps: 1. Disconnect the AC power cable from the back of the power supply. 2. Disconnect the DC power cables from the system board and the drives. 3.
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    primary EIDE connector (IDE1) CD-ROM interface secondary EIDE connector connector (CD_IN) (IDE2) Figure 4-10. System Board Components 3.3-V power input connector (POWER2) diskette/tape drive interface connector (DSKT) control-panel connector (PANEL) 4-12 Dell OptiPlex GXi Systems Service Manual
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    Expansion Cards The computer has a removable expansion-card cage. The expansion-card cage contains the riser board and any installed expansion cards. Dell recommends that you remove the expansion-card cage first before removing or installing expansion cards. If you are not removing any of the
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    the retaining screw from the card-mounting bracket. 4. Grasp the expansion card by its corners, and carefully remove it from the expansion-card connector. 4-14 Dell OptiPlex GXi Systems Service Manual
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    Riser Board riser-board mounting screws (2) riser board riser-board alignment slot expansion-card cage Figure 4-13. Riser Board Removal To remove the riser board, follow these steps: 1. Remove the expansion-card cage and all expansion cards. 2. Lay the expansion-card cage on a flat work surface
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    . DIMM Installation 2. 1. To replace a DIMM, press the DIMM fully into the socket while closing the securing clips to lock the DIMM into the socket. 4-16 Dell OptiPlex GXi Systems Service Manual
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    right side of computer cache memory card socket shown without DIMMs for clarity Figure 4-16. Cache-Memory Card Removal To remove the cache memory card, rock the cache memory card from side to side while pulling up on it. Take note of which end of the cache memory card is the pin-1 end (nearest
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    NIC daughter board mounting screw back panel of the computer Figure 4-17. NIC Daughter-Board Removal To remove the NIC daughter board, do the following: 1. Remove the NIC daughter-board mounting screw. 2. Pull straight up on the NIC daughter board. 4-18 Dell OptiPlex GXi Systems Service Manual
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    Microprocessor/Heat Sink Assembly heat sink front of computer microprocessor securing clip (hooks over tabs on the socket) microprocessor socket Figure 4-18. Microprocessor Securing-Clip Removal To remove the microprocessor/heat sink assembly, follow
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    pad (attached to underside of heat sink) microprocessor microprocessor-socket release lever front of computer Figure 4-19. Microprocessor Removal right tab If the heat sink and microprocessor are corner where the holes are in a diagonal pattern. 4-20 Dell OptiPlex GXi Systems Service Manual
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    by the manufacturer. Discard used batteries according to the manufacturer's instructions. To remove the system battery, follow these steps: 1. If possible, enter the System Setup program, and make a printed copy of the System Setup screens. 2. Remove the expansion-card cage. 3. Remove the battery
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    Disconnect all cables from their connectors at the back of the computer. 2. Remove the expansion-card cage. 3. Disconnect all cables are replacing a system board, remove the DIMMs, the cache memory card, the NIC daughter board, and the microprocessor from the Dell OptiPlex GXi Systems Service Manual
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    This chapter provides procedures for removing the components, assemblies, and subassemblies in the Dell OptiPlex GXi midsize computer. If you are servicing a Dell OptiPlex GXi low-profile or mini tower computer, use Chapter 4, "Removing and Replacing Parts on the Low-Profile Chassis," or Chapter
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 88
    potential for personal injury. Also, disconnect any telephone or telecommunication lines from the computer. 3. Wear a wrist grounding strap, and clip it to an unpainted metal on the back of the computer to discharge any static charge from your body. 5-2 Dell OptiPlex GXi Systems Service Manual
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    Floor Stand floor stand screw Figure 5-1. Floor Stand Removal To remove the floor stand, follow these steps: 1. Place the right side of the computer on a flat work surface. 2. Unscrew the floor stand screw. Use your fingers or a wide flat-blade screwdriver to unscrew the floor stand screw. 3. Pull
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 90
    free to swing up. 3. Raise the back of the cover and pivot it toward the front of the computer. 4. Lift the cover off the hooks at the front of the chassis. Four plastic hooks on the interfere with the cover or with the proper airflow inside the computer. 5-4 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 91
    remove the eject, power, and reset buttons, follow these steps: 1. Lay the computer cover upside down on a flat work surface, with the back of the cover button, use a small screw- driver and push in on the two or three plastic clips that hold the button to the computer cover. When these clips are
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 92
    Figure 5-4. Front-Panel Insert Removal To remove a front-panel insert, follow these steps: 1. Lay the computer cover upside down on a flat work surface, with the front of the cover facing you. 2. From a 1/4-inch nutdriver to help push on the ring-tabs. 5-6 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 93
    Control Panel chassis hooks (2) control panel control-panel cable Figure 5-5. Control-Panel Removal screw To remove the control panel, follow these steps: 1. Remove the hard-disk drive bracket. 2. Disconnect the control-panel cable from the PANEL connector on the system board (see Figure 5-13).
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 94
    Figure 5-6 shows an example of drive hardware that can be installed in the computer. Refer to this figure when you perform any of the procedures in the EIDE connector (IDE2) primary EIDE connector (IDE1) DSKT connector Figure 5-6. Drive Hardware 5-8 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 95
    Externally Accessible Drive Assemblies bracket-mounting screw drive-mounting screws (2) hooks (2) Figure 5-7. 3.5-Inch Diskette Drive Removal To remove the 3.5-inch diskette drive, follow these steps: 1. Disconnect the DC power cable and the interface cable from the back of the 3.5-inch diskette
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 96
    the mounting plate. Insert the four screws, and tighten them in the order stamped on the bottom of the 5.25-inch drive-mounting plate. 5-10 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 97
    , and rotate the front of the bracket up until the hooks are free from the chassis. 4. Lift the hard-disk drive bracket out of the computer. When you reinstall the hard-disk drive bracket, place the lower-back tab of the hard-disk drive bracket into position (be sure that the
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 98
    to the hard-disk drive bracket at the bottom of the hard-disk drive. 3. Slide the drive out of the hard-disk drive bracket. 5-12 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 99
    up, and move it to the right to disengage the power supply from the slot in the chassis. 5. Lift the system power supply from the computer. Removing and Replacing Parts on the Midsize Chassis 5-13
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 100
    primary EIDE connector (IDE1) CD-ROM interface secondary EIDE connector connector (CD_IN) (IDE2) Figure 5-13. System Board Components 3.3-V power input connector (POWER2) diskette/tape drive interface connector (DSKT) control-panel connector (PANEL) 5-14 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 101
    Expansion Cards The computer has a removable expansion-card cage. The expansion-card cage contains the riser board and any installed expansion cards. Dell recommends that you remove the expansion-card cage first before removing or installing expansion cards. If you are not removing any of the
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 102
    the retaining screw from the card-mounting bracket. 4. Grasp the expansion card by its corners, and carefully remove it from the expansion-card connector. 5-16 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 103
    Riser Board riser-board mounting screws (2) riser board slots (2) expansion-card cage Figure 5-16. Riser Board Removal To remove the riser board, follow these steps: 1. Remove the expansion-card cage and all expansion cards. 2. On a flat work surface, turn the expansion-card cage over, with the
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 104
    . DIMM Installation 2. 1. To replace a DIMM, press the DIMM fully into the socket while closing the securing clips to lock the DIMM into the socket. 5-18 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 105
    Card right side of computer cache memory card socket shown without DIMMs for clarity Figure 5-19. Cache-Memory Card Removal To remove the cache memory card, follow these steps: 1. Unlatch and rotate the power supply to the right (see Figure 5-12). 2. Rock the cache memory card from side to side
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 106
    Board NIC daughter board mounting screw back panel of the computer Figure 5-20. NIC Daughter-Board Removal To remove the NIC daughter board, do the following: 1. Remove the NIC daughter-board mounting screw. 2. Pull up on the NIC daughter board. 5-20 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 107
    Microprocessor/Heat Sink Assembly heat sink front of computer microprocessor securing clip (hooks over tabs on the socket) microprocessor socket Figure 5-21. Microprocessor Securing-Clip Removal To remove the microprocessor/heat sink assembly, follow
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 108
    pad (attached to underside of heat sink) microprocessor microprocessor-socket release lever front of computer Figure 5-22. Microprocessor Removal right tab If the heat sink and microprocessor are corner where the holes are in a diagonal pattern. 5-22 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 109
    by the manufacturer. Discard used batteries according to the manufacturer's instructions. To remove the system battery, follow these steps: 1. If possible, enter the System Setup program, and make a printed copy of the System Setup screens. 2. Remove the expansion-card cage. 3. Remove the system
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 110
    Disconnect all cables from their connectors at the back of the computer. 3. Remove the expansion-card cage. 4. Disconnect all cables are replacing a system board, remove the DIMMs, the cache memory card, the NIC daughter board, and the microprocessor from the Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 111
    This chapter provides procedures for removing the components, assemblies, and subassemblies in the Dell OptiPlex GXi mini tower computer. If you are servicing a Dell OptiPlex GXi low-profile or midsize computer, use Chapter 4, "Removing and Replacing Parts on the Low-Profile Chassis," or Chapter
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 112
    potential for personal injury. Also, disconnect any telephone or telecommunication lines from the computer. 3. Wear a wrist grounding strap, and clip it to an unpainted metal on the back of the computer to discharge any static charge from your body. 6-2 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 113
    , follow these steps: 1. Remove the padlock if one is installed. 2. Facing the left side of the computer, press the release button at the bot- tom-left corner of the front bezel. 3. Lift the bottom of the cover, allowing it to pivot up
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 114
    the bezel away from the chassis. 3. Disengage the two retaining hooks at the bottom of the bezel, and pull the bezel away from the chassis. 6-4 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 115
    , pull gently on the plastic part of the button until it comes free. 3. To remove the power button or the reset button, use a small screw- driver and push in on the two or three plastic clips that hold the button to the bezel. When these clips are released, the button comes
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 116
    -panel insert, position the two ring-tabs over the posts on the inside of the bay opening, then press the ring tabs over the posts. 6-6 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 117
    eject button mechanism front of bezel back of bezel Figure 6-5. 3.5-Inch Front-Panel Insert Removal To remove a 3.5-inch front-panel insert, follow these steps: 1. Hold the bezel with the front facing you. 2. Inside the bezel, press the eject button mechanism toward the front panel to snap the
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 118
    panel out of the hooks holding it to the chassis. Note the routing of the control-panel cable as you remove it from the chassis. 6-8 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 119
    Drives Figure 6-7 shows an example of drive hardware that can be installed in the computer. Refer to this figure when you perform any of the procedures in the following subsections. DC power cable diskette/tape drive interface cable 3.5-inch diskette
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 120
    to remove it. 3. Remove the drive-mounting screw from the left side of the drive, and remove the drive from the bracket (see Figure 6-9). 6-10 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 121
    drive-mounting screw hooks (2) Figure 6-9. 3.5-Inch Diskette Drive Removal When you replace the 3.5-inch diskette drive, be sure the two hooks on the right side of the bracket engage the mounting holes in the side of the 3.5-inch diskette drive. retaining tabs (2) Figure 6-10. 5.25-Inch Drive
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 122
    the mounting plate. Insert the four screws, and tighten them in the order stamped on the bottom of the 5.25-inch drive-mounting plate. 6-12 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 123
    the slide rail on the drive cage. 4. Lift the hard-disk drive bracket up slightly to free the hinge tabs and remove it from the computer. When you reinstall the hard-disk drive bracket, insert the bracket's hinge tabs into the chassis slots so that the tabs hook over the slots
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 124
    to the hard-disk drive bracket at the bottom of the hard-disk drive. 3. Slide the drive out of the hard-disk drive bracket. 6-14 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 125
    from the system board and the drives. 4. Facing the left side of the computer, move the front end of the system power supply toward you, and lift the slot in the chassis. 5. Lift the system power supply from the computer. When you reinstall the power supply, place the power-supply detent link over
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 126
    primary EIDE connector (IDE1) CD-ROM interface secondary EIDE connector connector (CD_IN) (IDE2) Figure 6-15. System Board Components 3.3-V power input connector (POWER2) diskette/tape drive interface connector (DSKT) control-panel connector (PANEL) 6-16 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 127
    Expansion Cards The computer has a removable expansion-card cage. The expansion-card cage contains the riser board and any installed expansion cards. Dell recommends that you remove the expansion-card cage first before removing or installing expansion cards. If you are not removing any of the
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 128
    the retaining screw from the card-mounting bracket. 4. Grasp the expansion card by its corners, and carefully remove it from the expansion-card connector. 6-18 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 129
    Riser Board riser-board mounting screws (2) slots (2) expansion-card cage Figure 6-18. Riser Board Removal riser board To remove the riser board, follow these steps: 1. Remove the expansion-card cage and all expansion cards. 2. Place the expansion-card cage on a flat work surface with the riser
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 130
    . DIMM Installation 2. 1. To replace a DIMM, press the DIMM fully into the socket while closing the securing clips to lock the DIMM into the socket. 6-20 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 131
    Card right side of computer cache memory card socket shown without DIMMs for clarity Figure 6-21. Cache-Memory Card Removal To remove the cache memory card, follow these steps: 1. Unlatch and rotate the power supply up until it locks (see Figure 6-14). 2. Rock the cache memory card from side to
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 132
    Board NIC daughter board mounting screw back panel of the computer Figure 6-22. NIC Daughter-Board Removal To remove the NIC daughter board, do the following: 1. Remove the NIC daughter-board mounting screw. 2. Pull up on the NIC daughter board. 6-22 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 133
    Microprocessor/Heat Sink Assembly heat sink front of computer microprocessor securing clip (hooks over tabs on the socket) microprocessor socket Figure 6-23. Microprocessor Securing-Clip Removal To remove the microprocessor/heat sink assembly, follow
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 134
    pad (attached to underside of heat sink) microprocessor microprocessor-socket release lever front of computer Figure 6-24. Microprocessor Removal right tab If the heat sink and microprocessor are corner where the holes are in a diagonal pattern. 6-24 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 135
    by the manufacturer. Discard used batteries according to the manufacturer's instructions. To remove the system battery, follow these steps: 1. If possible, enter the System Setup program, and make a printed copy of the System Setup screens. 2. Remove the expansion-card cage. 3. Remove the system
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 136
    follow these steps: 1. Remove the expansion-card cage. 2. Place the computer on its side on a flat surface, with the floor stand off are replacing a system board, remove the DIMMs, the cache memory card, the NIC daughter board, and the microprocessor from the Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 137
    Alt> immediately after the computer's speaker emits a beep. If you wait too long and the operating system begins to load into memory, let the system complete Alt>. Another way of entering the System Setup program is to shut down the system, boot from an MS-DOS diskette, and then press
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 138
    : External Cache: Video Memory: System Memory: Service Tag: Asset Tag: Pentium-200 256 KB 2 MB 16 MB (EDO) XXXXX XXXXX Tab,Shift-Tab change fields change values Alt-P next Esc exit Alt-B reboot Page 2 of 2 Dell Computer Corporation System OptiPlex GXi 5200M Setup BIOS Version: XXX Keyboard
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 139
    of drives in computer. Tape drives are not reflected in these categories. Drive A Location Identifies which diskette drive is used as the boot drive. Drives: Primary Secondary Identifies drives attached to the IDE1 and IDE2 connectors on system board. Each EIDE connector supports two EIDE drives
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 140
    System Setup Categories (continued) Category Function CPU Speed Indicates processor speed at which system boots - all EIDE hard-disk drives support this feature. Enabling this feature for drives that do not support it may cause the EIDE mouse port. A-4 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 141
    cache memory card installed. Video Memory Displays amount of video memory on the system board. System Memory Displays entire amount of installed memory detected in system, except for memory on EMS expansion cards. If EDO DIMMs are installed, EDO is displayed next to this category. Service Tag
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 142
    A-6 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 143
    , 4-9, 5-10, 6-11 A audio controller, 1-11 B battery removal, 4-21, 5-23, 6-25 beep codes, 3-1 boot routine, observing when trouble- shooting, 2-3 bracket, hard-disk drive, removal, 5-11, 6-13 C cache-memory card removal, 4-17, 5-19, 6-21 CD-ROM drive removal, 4-9, 5-10, 6-11 computer cover removal
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 144
    , 1-21 K key combinations, to enter System Setup program, A-1 M memory subsystem, 1-21 messages, error, 3-4 microprocessor removal, 4-19, 5-21, 6-23 securing clip removal, 4-19, 5-21, 6-23 N NIC daughter-board removal, 4-18, 5-20, 6-22 description, 1-11 2 Dell OptiPlex GXi Systems Service Manual
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 145
    , list of, 3-4 system features, 1-2 system memory. See memory subsystem System Setup program, A-1 system unit. See computer T tape drive removal, 4-9, 5-10, 6-11 technical specifications, 1-25 tools, recommended, 4-1, 5-1, 6-1 troubleshooting boot routine, 2-3 external visual inspection, 2-2 initial
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 146
  • Dell OptiPlex GXi | Service Manual (.pdf) - Page 147
    ® www.dell.com Printed in the U.S.A. P/N 50560 Rev. A01
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