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Dell OptiPlex GXa Service Manual

Dell OptiPlex GXa Service Manual

Dell optiplex gxa: user guide
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  • Page 1 Š Š ®...
  • Page 2 International Business Machines Corporation; 3Com is a registered trademark of 3Com Corporation. 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 3: Table Of Contents

    Contents Chapter 1 System Overview....... 1-1 Chassis Differences..........1-2 Chassis Similarities.
  • Page 4 Computer Service Information........1-16 Remote Management Support Features (Optional) ....1-16 Online Documentation .
  • Page 5 Chapter 3 Beep Codes and Error Messages ....3-1 POST Beep Codes ..........3-1 System Error Messages.
  • Page 6 Floor Stand ........... 5-4 Computer Cover .
  • Page 7 Drives ............6-10 Externally Accessible Drive Assemblies .
  • Page 8 Figure 1-20. DC Power Connectors P2 (Low-Profile Chassis) and P7 (All OptiPlex GXa Chassis) ......1-26 Figure 1-21.
  • Page 9 Figure 1-26. DC Power Connector P1 for the OptiPlex NX ... 1-33 Figure 1-27. DC Power Connector P2 for the OptiPlex NX ... 1-33 Figure 1-28.
  • Page 10 Figure 5-13. System Power-Supply Removal ..... . 5-14 Figure 5-14. Expansion-Card Cage Removal ..... . 5-15 Figure 5-15.
  • Page 11 DREQ Line Assignments......1-21 Table 1-4. OptiPlex GXa DC Voltage Ranges ....1-24 Table 1-5.
  • Page 12 This First A prerequisite for using this manual to service Dell computer systems is a ® basic knowledge of IBM -compatible PCs and prior training in IBM- compatible PC troubleshooting techniques. In addition to information provided in this manual and the online System User’s Guide, Dell provides the Diagnostics and Troubleshooting Guide for troubleshooting procedures and instructions on using the Dell Diagnostics to test the computer system.

  • Page 13: Chapter 1 System Overview

    The OptiPlex NX computer is available only in the Net PC chassis (see Figure 1-1). Chapters 1 through 3 and Appendix A contain information that applies to all models of the OptiPlex GXa and OptiPlex NX families; Chapters 4, 5, 6, and 7 are chassis-specific. System Overview...

  • Page 14: Chassis Differences

    Mini Tower Chassis Net PC Chassis Figure 1-1. Chassis Configurations hassis Differences The three OptiPlex GXa and the OptiPlex Net PC chassis configurations differ primarily in the following expansion features: • Number of expansion slots available for PCI/ISA expansion cards •...

  • Page 15: Chassis Similarities

    Similarities All four chassis configurations have the following similarities: • Use the same system board (OptiPlex GXa systems can use either the stan- dard or EM system board; the OptiPlex NX systems use the EM system board) • Identical operational characteristics (same BIOS, POST, memory, microprocessor, external I/O ports, and so on) •...

  • Page 16: Main Memory

    Main Memory Main memory for the OptiPlex GXa and OptiPlex NX systems ranges from a minimum of 16 MB to a maximum of 384 MB. All main memory is implemented using high-speed ECC and non-ECC DIMMs. One to three DIMMs, ranging in memory capacity sizes from 16 to 128 MB, may be used to provide a maximum memory capacity of 384 MB.

  • Page 17: Built-In Svga Subsystem

    Built-In Ethernet NIC Support (Optional on EM System Board) The OptiPlex GXa systems and Optiplex NX systems are available with or without the built-in Ethernet NIC subsystem (optional if using the EM system board).

  • Page 18: Network Cable Requirements

    Ethernet network. For OptiPlex NX systems, refer to the online Network Administrator’s Guide. Full Set of I/O Ports For desktop connectivity, the OptiPlex GXa and OptiPlex NX systems include the following ports: • 25-hole, bidirectional parallel port with EPP/ECP and demand-mode DMA support •...

  • Page 19: Universal Power Supply

    Universal Power Supply The OptiPlex GXa and OptiPlex NX systems are equipped with a switch- selectable (115-/230-VAC) universal power supply that can operate from standard AC power outlets in the U.S. and all international countries. The power supply used in the midsize and mini tower chassis configurations is a higher-capacity power supply than that used in the low-profile and NX chassis configurations.

  • Page 20: Figure 1-2. Front-Panel Features

    Mini Tower Chassis power button power indicator hard-disk drive access indicator Net PC Chassis Figure 1-2. Front-Panel Features Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 21: Figure 1-3. Internal View Of The Low-Profile Chassis

    3.5-inch diskette drive diskette/tape drive hard-disk drive interface cable interface cable power supply padlock ring voltage hard-disk drive selection switch AC power receptacle security cable slot parallel port connector expansion-card serial port 1 cage connector mouse connector expansion-card slots (3) keyboard connector audio connectors (3) USB connectors (2)

  • Page 22: Figure 1-5. Internal View Of The Mini Tower Chassis

    USB connectors serial port 2 connector video connector NIC connector expansion-card (optional) cage audio connectors (3) system board riser board padlock ring Figure 1-5. Internal View of the Mini Tower Chassis 1-10 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 23: Advanced Expansion Features

    Figure 1-6. Internal View of the Net PC Chassis dvanced Expansion Features The OptiPlex GXa systems contain advanced expansion subsystems that can support a mixture of traditional ISA expansion cards (called legacy cards), Plug and Play ISA expansion cards, and PCI expansion cards.

  • Page 24: Optiplex Nx Computer's Expansion-Card Slot

    Figure 1-7. Riser Board for Net PC Computer Low-Profile Computer’s Expansion-Card Slots The OptiPlex GXa low-profile computers have three expansion-card slots. The riser board has two ISA expansion-card connectors and two PCI expansion-card connectors. One PCI expansion-card connector and one ISA expansion-card connector share a single expansion-card slot, resulting in a total of three expansion-card slots (see Figure 1-8).

  • Page 25: Midsize Computer's Expansion-Card Slots

    Figure 1-9. EM Riser Board for the Low-Profile Computer Midsize Computer’s Expansion-Card Slots The OptiPlex GXa midsize computers have five expansion-card slots. The riser board is offered in two options. Option 1 is a passive riser board, with no PCI- to-PCI bridge.

  • Page 26: Mini Tower Computer's Expansion-Card Slots

    Figure 1-11. Riser Board for the Midsize Computer (Option 2) If you have an EM version of the OptiPlex GXa midsize computer, the riser board includes the P1 connector (for connecting the NIC to the riser cable) and an LED (see Figure 1-12). If the LED is on, the riser is receiving power; if off, the riser is not receiving power.

  • Page 27: Figure 1-13. Riser Board For The Mini Tower Computer

    ISA4 connector PCI5 connector ISA3 connector PCI4 connector ISA2 connector PCI3 connector ISA1 PCI2 connector connector HDLED PCI1 connector connector Figure 1-13. Riser Board for the Mini Tower Computer If you have an EM version of the minitower computer, the riser board includes the P1 connector (for connecting the NIC to the riser cable) and an LED (see Figure 1-14).

  • Page 28: Upgrade Options

    Chapters 4, 5, 6, and 7. Microprocessor/L2 Cache Upgrades On the OptiPlex GXa and OptiPlex NX systems, the microprocessor and sec- ondary L2 cache memory are implemented in an SEC cartridge/heat sink assembly. Upgrade to a higher-performance microprocessor is accomplished by snapping out the old assembly and installing an upgrade assembly as higher- performance microprocessors become available.

  • Page 29: Online Documentation

    The following subsections provide service-related information about the system board and components. System Board The OptiPlex GXa systems are equipped with either a standard system board or an enhanced manageability (EM) system board. However, the OptiPlex NX sys- tems use the EM system board only.

  • Page 30: Figure 1-15. System Board Components

    (IDE2) battery socket (BATTERY) control panel diskette/tape drive primary EIDE system board jumpers connector (PANEL) interface connector interface connector (DSKT) (IDE1) front of computer Figure 1-15. System Board Components 1-18 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 31: System Board Jumpers

    System Board Jumpers Figure 1-16. System Board Jumpers System Overview 1-19...

  • Page 32: Interrupt Assignments

    Generated by super I/O controller to indicate that device con- nected to parallel port requires service. NOTE: IRQ3 is available provided that no other device in the computer (such as a modem) is using COM2 or COM4. 1-20 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 33: Dma Channel Assignments

    Table 1-2. Interrupt Assignments (continued) IRQ Line Used By/Available IRQ8 Generated by keyboard controller for each tick of RTC. IRQ9 Available for use by an expansion card. IRQ10 Available for use by an expansion card. IRQ11 NIC/default PCI IRQ. IRQ12 Generated by keyboard controller to indicate that mouse’s output buffer is full.

  • Page 34: Hard-Disk Drive Service Information

    Hard-Disk Drive Service Information The following subsections provide service-related information about hard-disk drive options for the OptiPlex NX (Net PC computer) and OptiPlex GXa (low- profile, midsize, and mini tower) computers. NOTE: Throughout this manual, references to component locations assume the chassis orientations illustrated in Figure 1-17.

  • Page 35: Hard-Disk Drive For The Low-Profile Computer

    Hard-Disk Drive for the Low-Profile Computer The hard-disk drive assembly (consisting of the hard-disk drive and the hard- disk drive bracket) is located inside the chassis at the left front of the computer and is attached to the bottom of the chassis. One EIDE or SCSI 1-inch-high hard-disk drive can be mounted on the hard-disk drive bracket.

  • Page 36: Table 1-4. Optiplex Gxa Dc Voltage Ranges

    140 W on the midsize/mini tower computers. Withstands surges of up to 11.0 A to support disk start-up operations. VFP (volts flea power) — sometimes called “standby power.” 1-24 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 37: Pin Assignments For The Dc Power Connectors

    +5 VDC (red) common (black) common (black) common (black) common (black) +5 VDC (red) +12 VDC (yellow) Figure 1-19. DC Power Connectors P2 (Midsize and Mini Tower Chassis); P3, P4, P5, P6, and P9 (All OptiPlex GXa Chassis) System Overview 1-25...

  • Page 38: Dc Power Distribution

    Figures 1-21 through 1-25 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 1-26 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 39: Figure 1-21. Dc Power Cables For The Low-Profile Computer

    Figure 1-21. DC Power Cables for the Low-Profile Computer System Overview 1-27...

  • Page 40: Figure 1-22. Dc Power Distribution For The Low-Profile Computer

    +3.3 VDC grated NIC logic on the core VCC +2.1 to +3.5 VDC system board and to P1 on the riser board. Figure 1-22. DC Power Distribution for the Low-Profile Computer 1-28 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 41: Figure 1-23. Dc Power Cables For The Midsize And

    Figure 1-23. DC Power Cables for the Midsize and Mini Tower Computers System Overview 1-29...

  • Page 42: Figure 1-24. Dc Power Distribution For The Midsize Computer

    Some computers have an additional connector (P9) that may be used instead of P5 or P6. Figure 1-24. DC Power Distribution for the Midsize Computer 1-30 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 43: Figure 1-25. Dc Power Distribution For The Mini Tower Computer

    keyboard system board controller +3 VDC battery riser board power RTC/ management +3.3 VDC NVRAM and NIC logic PCI1 +5 VDC POWER1 through +12 VDC PWRGOOD PCI5 –12 VDC PSON# PSON# +5 VFP +5 VFP +5 VFP computer +5 VDC +5 VDC +5 VDC ISA1...

  • Page 44: Optiplex Nx Computer Power Supply

    The combined load on the +5-VDC and +3.3-VDC outputs should not exceed 65 W. Withstands surges of up to 3.0 A to support disk start-up operations. VFP (volts flea power) — sometimes called “standby power.” 1-32 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 45: Optiplex Nx Pin Assignments For The Dc Power Connectors

    OptiPlex NX Pin Assignments for the DC Power Connectors The power-supply output voltages can be measured at the back (wire side) of the connectors without disconnecting them. Figures 1-26 through 1-28 show the wire side of the connectors. open +5 VDC (red) common (black) +5 VDC (red) +5 VDC (red)

  • Page 46: Dc Power Distribution For The Optiplex Nx

    Power-supply connector identification • Power cable connection for the hard-disk drive • Power distribution to sockets and connectors on the system board Figure 1-29. DC Power Cables for the OptiPlex NX Computer 1-34 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 47: Figure 1-30. Dc Power Distribution For The Optiplex Nx Computer

    system board +3 VDC battery power RTC/ management NVRAM and NIC logic P1 POWER_1 PWRGOOD PSON# PSON# +5 VFP +5 VFP computer +3.3 VDC +3.3 VDC power supply +5 VDC +5 VDC +5 VDC +5 VDC PCI1 +12 VDC +12 VDC +12 VDC +12 VDC –12 VDC...

  • Page 48: Technical Specifications

    (one PCI connector and one ISA connector share an expansion-card slot) five (two share expansion-card slots) Mini tower computers..five (two PCI connectors share expansion- card slots with ISA connectors) 1-36 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...
  • Page 49 Table 1-6. Technical Specifications (continued) Expansion Bus (continued) ISA expansion-card connectors: Net PC computers ..None Low-profile computers . . . two (one ISA connector and one PCI connector share an expansion-card slot) Midsize computers ..three (one ISA connector and one PCI connector share an expansion-card slot) two (both share expansion-card slots) Mini tower computers .
  • Page 50 Video memory ... 2-MB SGRAM, upgradable to 4 MB Maximum video resolution . . . 1600 x 1200 pixels, with 256 colors 1-38 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...
  • Page 51 NIC ....RJ45 connector (optional on enhanced man- ageability OptiPlex Gxa systems and all OptiPlex NX systems) USB....
  • Page 52 90 to 135 V at 60 Hz; 180 to 265 V at 50 Hz Backup battery ... 3-V CR2032 coin cell 1-40 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...
  • Page 53 Table 1-6. Technical Specifications (continued) Physical Net PC computers Height ....9.27 cm (3.65 inches) Width....33.71 cm (13.27 inches) Depth.
  • Page 54 –16 to 10,600 m (–50 to 35,000 ft) The maximum operating temperature of 35°C (95°F) is for altitudes below 914.6 m (3000 ft). Above 914.6 m (3000 ft) the maximum operating temperature is reduced. 1-42 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 55: Basic Troubleshooting

    Basic Troubleshooting his chapter provides basic troubleshooting procedures applicable to all systems of the Dell OptiPlex GXa and OptiPlex NX families. A brief explana- tion of how to load and start diagnostics is also provided at the end of the chapter.

  • Page 56: External Visual Inspection

    For proper settings of 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. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 57: Observing The Boot Routine

    8. Inspect the exterior of the computer, including all controls and indica- tors, and all user-accessible data storage devices for any signs of physical damage. Does the inspection reveal any problems? Yes. Refer to the parts removal and replacement procedure in Chapters 4, 5, 6, or 7 as appropriate for your chassis type.

  • Page 58: Internal Visual Inspection

    To perform the internal visual inspection, follow these steps: 1. Turn off the system, including any attached peripherals, and disconnect all the AC power cables from their power sources. 2. Remove the computer cover. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...
  • Page 59 3. Verify that all chips, DIMMs, and expansion cards are fully seated in their sockets or connectors. WARNING: The SEC cartridge/heat sink assembly can get extremely hot. Be sure the assembly has had sufficient time to cool before you touch it. While reseating the SEC cartridge/heat sink assembly, use a wrist grounding strap or maintain contact with a metal surface on the chassis.

  • Page 60: Eliminating Resource Conflicts

    Computer Diagnostics The OptiPlex GXa systems use either diskette-based or server-based (EM systems only) diagnostics. The OptiPlex NX systems use either server-based, hard-disk–based, or (optionally) diskette-based diagnostics using an external diskette-drive kit connected to the computer as shown in Figure 2-1 and described in “Diskette-Based Diagnostics”...

  • Page 61: Hard-Disk-Based Diagnostics (Net Pc Systems Only)

    6. Using the arrow keys, highlight Dell N 5XXX Diagnostics and press <Enter>. 7. Select Run Once or Loop Continuously to begin the tests. The tests continue to run until an error is encountered. When an error is reported, you have the option of stopping or continuing the tests. When the tests are completed or stopped, the total number of errors is reported;...
  • Page 62 Starting the diagnostics causes the Dell logo to appear on the monitor screen, followed by a message indicating that the diagnostics is loading. Before the diagnostics loads, a program tests the portion of main memory (RAM) required for loading the diagnostics.

  • Page 63: Diskette-Based Diagnostics

    Diskette-Based Diagnostics The OptiPlex GXa systems use either diskette-based or server-based (EM sys- tems only) diagnostics. The OptiPlex NX systems use either server-based, hard- disk–based or optionally diskette-based diagnostics using an external diskette- drive kit connected to the computer as shown in Figure 2-1 and described in the following procedure.

  • Page 64: Running The Diskette-Based Diagnostics

    Drive A to 3.5 inch, 1.44 MB, and set Drives Primary to Auto (see Figure A-1). Then press <Alt><b> to reboot the computer. Starting the diagnostics causes the Dell logo to appear on the monitor screen, followed by a message indicating that the diagnostics is loading.

  • Page 65: Getting Help

    Dell for technical assistance. For instructions, see “Contacting Dell” in the online Network Administrator’s Guide or online System User’s Guide.
  • Page 66 2-12 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 67: Beep Codes And Error Messages

    Dell OptiPlex GXa and OptiPlex NX family of computers. These error messages can occur during the POST or, in the case of some fail- ures, during normal system operation.

  • Page 68: Table 3-1. Post Beep Codes

    Slave DMA-register failure Defective system board 3-1-2 Master DMA-register failure 3-1-3 Master interrupt-mask regis- ter failure 3-1-4 Slave interrupt-mask register failure 3-2-4 Keyboard-controller test Faulty keyboard controller failure (defective system board) Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 69: System Error Messages

    Table 3-1. POST Beep Codes (continued) Beep Code Error Probable Causes 3-3-4 Screen initialization failure Faulty video subsystem (defective system board) 3-4-1 Screen-retrace test failure 3-4-2 Search for video ROM failure 4-2-1 No timer tick Defective system board 4-2-2 Shutdown failure 4-2-3 Gate A20 failure 4-2-4...

  • Page 70: Table 3-2. System Error Messages

    Failure occurred while Faulty diskette, faulty or Diskette read system attempted to improperly connected failure read diskette. diskette/tape drive inter- face cable, or loose power cable. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...
  • Page 71 Table 3-2. System Error Messages (continued) Message Definition Probable Causes System could not suc- Faulty diskette/tape drive Diskette sub- cessfully issue reset controller (defective sys- system reset command to diskette tem board). failed controller. Diskette write-protect Diskette write-protected. Diskette write feature activated.
  • Page 72 Memory test did not POST memory test termi- Memory tests complete. nated by pressing terminated by <Spacebar>. keystroke Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...
  • Page 73 Table 3-2. System Error Messages (continued) Message Definition Probable Causes System does not recog- Faulty diskette, diskette/ No boot nize diskette drive or tape drive subsystem, device avail- hard-disk drive from hard-disk drive, hard-disk able which it is trying to drive subsystem, or no boot.
  • Page 74 (defective system board). MS-DOS cannot write Faulty diskette or hard- Write fault to diskette or hard-disk disk drive. drive. Write fault on selected drive Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 75: Removing And Replacing Parts On The Low-Profile Chassis

    Low-Profile Chassis his chapter provides procedures for removing the components, assemblies, and subassemblies in the Dell OptiPlex GXa low-profile computer. If you are servicing a midsize, mini tower, or Net PC chassis, use Chapter 5, “Removing and Replacing Parts on the Midsize Chassis,” Chapter 6, “Removing and Replacing Parts on the Mini Tower Chassis,”...

  • Page 76: Precautionary Measures

    Avoid touching components and contacts on a card, and avoid touching pins on a chip to prevent static electricity damage. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 77: Inside The Computer

    nside the Computer Figure 4-1 shows an internal view of the interior of the low-profile computer and identifies major components for orientation. Refer to this illustration, as needed, when performing the component removal/replacement procedures in this chapter. diskette drive CD-ROM drive in external bay drive cage for external drive power supply...

  • Page 78: Computer Cover

    Three plastic hooks on the inside-front part of the cover secure it to the chassis. Before you reinstall the cover, fold all cables out of the way so that they do not interfere with the cover or with proper airflow inside the computer. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 79: Eject, Power, And Reset Buttons

    ject, Power, and Reset Buttons eject button computer cover (upside down) reset button power button Figure 4-3. Eject, Power, and Reset Button Removal 1. Lay the computer cover upside down on a flat work surface, with the back of the cover facing you. 2.

  • Page 80: Front-Panel Inserts

    To replace a 5.25-inch front-panel insert, position the two ring-tabs over the posts on the inside of the bay opening, and then press the ring-tabs over the posts. If necessary, use a -inch nutdriver to help push on the ring-tabs. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 81: Control Panel

    ontrol Panel chassis mounting screw control panel cable control panel mounting tab Figure 4-5. Control Panel Removal To remove the control panel, follow these steps: 1. Disconnect the control panel cable from the PANEL connector on the system board (see Figure 4-15). 2.

  • Page 82: Drives

    DC power cable 5.25-inch drive bay and bracket power supply hard-disk drive EIDE cable primary EIDE interface connector (IDE1) back secondary EIDE DSKT connector interface connector (IDE2) Figure 4-6. Drive Hardware Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 83: Inch Diskette Drive Assembly

    3.5-Inch Diskette Drive Assembly drive-mounting screws (2) 3.5-inch diskette- drive-assembly latches (2) front of computer hooks (2) Figure 4-7. 3.5-Inch Diskette Drive Removal To remove the 3.5-inch diskette drive assembly, follow these steps: 1. Disconnect the DC power cable and the interface cable from the back of the diskette drive.

  • Page 84: 5.25-Inch Drive Assembly

    Check the alignment of the computer cover around the 5.25-inch drive bezel. Adjust the drive forward or backward on the bracket to align it. 4-10 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 85: Hard-Disk Drive Assembly

    Hard-Disk Drive Assembly hard-disk drive mounting screws (4) tabs (2) captive screw notches (2) front of computer Figure 4-9. Hard-Disk Drive Assembly Removal To remove the hard-disk drive, follow these steps: 1. Disconnect the DC power cable and the interface cable from the back of the drive.

  • Page 86: System Power Supply

    230 V) before the power cable is plugged into an AC outlet. NOTE: When replacing the power supply on an enhanced manageability system, ensure that the replacement power supply is an EM power supply. 4-12 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 87: Expansion Cards

    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 expansion cards, leave the external cables attached to the expansion cards.

  • Page 88: Expansion Card

    2. Remove the expansion-card cage. 3. Remove 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 GXa and OptiPlex NX Systems Service Manual...

  • Page 89: Riser Board

    Riser Board riser-board mounting screws (2) riser-board alignment slot riser board 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, with the riser board facing up.

  • Page 90: System Board

    Push evenly on both sides of the system board as you slide it into position (do not twist the system board). 4-16 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 91: System Board Components

    ystem Board Components The subsections that follow Figure 4-15 contain procedures for removing/ replacing system board components. microphone serial port 2 connector line-out jack jack (MIC) (SERIAL2) (LINE-OUT) keyboard/mouse video connector connectors (stacked) USB connectors (MONITOR) line-in jack (KYBD/MOUSE) (USB) (LINE-IN) parallel/serial port 1 connectors (stacked)

  • Page 92: Dimms

    You can upgrade video memory from 2 to 4 MB by installing a video-memory upgrade module in the video-memory upgrade socket on the system board. Adding additional video memory increases the system’s video performance and provides additional modes for high-resolution/expanded color applications. 4-18 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 93: Figure 4-18. Installing A Video-Memory Upgrade Module

    To install the video memory upgrade, follow these steps: 1. Remove the expansion-card cage. CAUTION: To avoid possible damage to the video-memory upgrade socket and/or video-memory upgrade module, the module is keyed and must be correctly positioned before inserting it into the socket. 2.

  • Page 94: Microprocessor

    Microprocessor To take advantage of future options in processor speed and functionality, you can replace the microprocessor on your system board with any Dell-supported microprocessor upgrade. The microprocessor upgrade kit is shipped with an SEC cartridge/heat sink assembly, which includes the microprocessor, micro- processor heat sink, and L2-cache memory module.

  • Page 95: System Battery

    To remove the SEC cartridge/heat sink assembly, follow these steps: 1. Remove the system power supply. WARNING: The SEC cartridge/heat sink assembly can get extremely hot during system operations. Be sure that the assembly has had suffi- cient time to cool before touching it. 2.
  • Page 96 9. Turn off the computer; wait 10 or more minutes, and then reenter the System Setup program to ensure that the date and time are still correct, indicating that the system battery is functioning correctly. 4-22 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 97: Removing And Replacing Parts On The Midsize Chassis

    Midsize Chassis his chapter provides procedures for removing the components, assemblies, and subassemblies in the Dell OptiPlex GXa midsize computer. If you are ser- vicing a low-profile, mini tower, or Net PC chassis, use Chapter 4, “Removing and Replacing Parts on the Low-Profile Chassis,” Chapter 6, “Removing and Replacing Parts on the Mini Tower Chassis,”...

  • Page 98: Precautionary Measures

    Avoid touching components and contacts on a card, and avoid touching pins on a chip to prevent static electricity damage. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 99: Inside The Computer

    nside the Computer Figure 5-1 shows an internal view of the midsize computer and identifies major components for orientation. Refer to this illustration, as needed, when perform- ing the component removal/replacement procedures in this chapter. 3.5-inch diskette drive external drive bays diskette/tape drive interface cable hard-disk drive bracket...

  • Page 100: Floor Stand

    Use your fingers or a wide flat-blade screwdriver to unscrew the floor stand screw. 3. Pull the floor stand away from the computer. Disengage the three orientation nubs that position and help hold the floor stand to the computer. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 101: Computer Cover

    omputer Cover securing buttons (2) front of computer Figure 5-3. Computer Cover Removal To remove the computer cover, follow these steps: 1. Turn off power to all peripherals, and disconnect the AC power cable from its AC outlet. 2. Press in on the two securing buttons until the cover is free to swing up. 3.

  • Page 102: Eject, Power, And Reset Buttons

    When these clips are released, the button comes free from the front panel of the cover. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 103: Front-Panel Inserts

    ront-Panel Inserts 5.25-inch front- panel insert computer cover (upside down) posts (2) ring-tabs (2) Figure 5-5. 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.

  • Page 104: Figure 5-6. Control Panel Removal

    3. Remove the mounting screw holding the control panel to the chassis. 4. Slide the control 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. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 105: Drives

    rives Figure 5-7 shows an example of drive hardware that can be installed in the com- puter. Refer to this figure when you perform any of the procedures in the following subsections. diskette/tape drive system DC power cable interface cable power supply 3.5-inch diskette drive hard-disk drive bracket...

  • Page 106: Externally Accessible Drive Assemblies

    When you replace the 3.5-inch diskette drive, be sure that the two hooks on the right side of the bracket engage the mounting holes in the side of the 3.5-inch diskette drive. 5-10 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 107: 5.25-Inch Drive Assembly

    5.25-Inch Drive Assembly retaining tabs (2) Figure 5-9. 5.25-Inch Drive Assembly Removal To remove a 5.25-inch drive assembly from the middle or lower drive bay, fol- low these steps: 1. Disconnect the DC power cable and the interface cable from the back of the drive.

  • Page 108: Hard-Disk Drive Bracket

    (be sure that the opening in the lower-back tab is over the alignment tab on the chassis); then rotate the front of the bracket down into position. 5-12 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 109: Hard-Disk Drive

    Hard-Disk Drive drive-mounting screws (4) drive-mounting screws (4) for bottom-mounted drive for side-mounted drive hard-disk drive bracket hard-disk drive Figure 5-12. Hard-Disk Drive Removal 1. Remove the hard-disk drive bracket. 2. Remove the four screws that attach the hard-disk drive to the hard-disk drive bracket.

  • Page 110: System Power Supply

    5. Lift the system power supply from the computer. NOTE: When replacing the power supply on an enhanced manageability system, ensure that the replacement power supply is an EM power supply. 5-14 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 111: Expansion Cards

    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 expansion cards, leave the external cables attached to them.

  • Page 112: Expansion Card

    2. Remove the expansion-card cage. 3. Remove 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 GXa and OptiPlex NX Systems Service Manual...

  • Page 113: Riser Board

    Riser Board riser-board mounting screws (2) slots (2) riser board expansion-card cage Figure 5-16. Riser Board Removal 1. Remove the expansion-card cage and all expansion cards. 2. On a flat work surface, turn the expansion-card cage over, with the riser board facing up. 3.

  • Page 114: System Board

    Push evenly on both sides of the system board as you slide it into position (do not twist the system board). 5-18 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 115: System Board Components

    ystem Board Components The subsections that follow Figure 5-18 contain procedures for removing/ replacing system board components. microphone serial port 2 connector line-out jack (SERIAL2) jack (MIC) (LINE-OUT) keyboard/mouse video connector connectors (stacked) USB connectors line-in jack (MONITOR) (KYBD/MOUSE) (USB) (LINE-IN) parallel/serial port 1 optional NIC...

  • Page 116: Dimms

    You can upgrade video memory from 2 to 4 MB by installing a video-memory upgrade module in the video-memory upgrade socket on the system board. Adding additional video memory increases the system’s video performance and provides additional modes for high-resolution/expanded color applications. 5-20 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 117: Figure 5-21. Installing A Video-Memory Upgrade Module

    To install the video memory upgrade, follow these steps: 1. Remove the expansion-card cage. CAUTION: To avoid possible damage to the video-memory upgrade socket and/or video-memory upgrade module, the module is keyed and must be correctly positioned before inserting it into the socket. 2.

  • Page 118: Microprocessor

    Microprocessor To take advantage of future options in processor speed and functionality, you can replace the microprocessor on your system board with any Dell-supported microprocessor upgrade. The microprocessor upgrade kit is shipped with an SEC cartridge/heat sink assembly, which includes the microprocessor, micro- processor heat sink, and L2-cache memory module.

  • Page 119: System Battery

    To remove the SEC cartridge/heat sink assembly, follow these steps: 1. Remove the system power supply. WARNING: The SEC cartridge/heat sink assembly can get extremely hot during system operations. Be sure that the assembly has had suffi- cient time to cool before touching it. 2.
  • Page 120 9. Turn off the computer; wait 10 or more minutes, and then reenter the System Setup program to ensure that the date and time are still correct, indicating that the system battery is functioning correctly. 5-24 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 121: Removing And Replacing Parts On The Mini Tower Chassis

    Mini Tower Chassis his chapter provides procedures for removing the components, assemblies, and subassemblies in the Dell OptiPlex GXa mini tower computer. If you are servicing a low-profile, midsize, or Net PC chassis, use Chapter 4, “Removing and Replacing Parts on the Low-Profile Chassis,” Chapter 5, “Removing and Replacing Parts on the Midsize Chassis,”...

  • Page 122: Precautionary Measures

    Avoid touching components and contacts on a card, and avoid touching pins on a chip to prevent static electricity damage. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 123: Inside The Computer

    nside the Computer Figure 6-1 shows an internal view of the interior of the mini tower computer and identifies major components for orientation. Refer to this illustration, as needed, when performing the component removal/replacement procedures in this chapter. power supply external drive bays hard-disk drive bracket...

  • Page 124: Computer Cover

    Before you reinstall the cover, fold all cables out of the way so that they do not interfere with the cover or with proper airflow inside the computer. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 125: Front Bezel

    ront Bezel tab release retaining hooks (2) Figure 6-3. Front-Bezel Removal 1. Press the tab release marked with the icon. 2. Tilt 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.

  • Page 126: Eject, Power, And Reset Buttons

    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 free from the bezel. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 127: Front-Panel Inserts

    ront-Panel Inserts front bezel posts (2) 5.25-inch front-panel insert ring-tabs (2) Figure 6-5. 5.25-Inch Front-Panel Insert Removal To remove a 5.25-inch front-panel insert, follow these steps: 1. Hold the bezel with the front facing you. 2. From the front of the bezel, use your thumbs to press inward on the insert until it slides off the two posts.

  • Page 128: Figure 6-6. 3.5-Inch Front-Panel Insert Removal

    To replace the 3.5-inch front-panel insert, work from outside the bezel. Place the insert in position, and press it into the opening. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 129: Control Panel

    ontrol Panel chassis hooks (2) control panel control panel cable screw Figure 6-7. Control Panel Removal 1. Remove the hard-disk drive bracket. 2. Disconnect the control panel cable from the PANEL connector on the system board (see Figure 6-20). 3. Remove the mounting screw holding the control panel to the chassis. 4.

  • Page 130: Drives

    EIDE interface connector (IDE2) EIDE cable Figure 6-8. Drive Hardware Externally Accessible Drive Assemblies The following subsections contain removal/replacement procedures for drives installed in the externally accessible drive bays. 6-10 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 131: 3.5-Inch Diskette Drive Assembly

    3.5-Inch Diskette Drive Assembly retaining-tab release button Figure 6-9. 3.5-Inch Diskette Drive Assembly Removal 1. Disconnect the DC power cable and the interface cable from the back of the 3.5-inch diskette drive. 2. Press the retaining-tab release button, and pull the drive assembly for- ward to remove it.

  • Page 132: Figure 6-10. 3.5-Inch Diskette Drive Bracket

    When you replace the 3.5-inch diskette drive, be sure that the two hooks on the right side of the bracket engage the mounting holes in the side of the 3.5-inch diskette drive. 6-12 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 133: 5.25-Inch Drive Assembly

    5.25-Inch Drive Assembly retaining tabs (2) Figure 6-11. 5.25-Inch Drive Assembly Removal To remove a 5.25-inch drive assembly from the middle or lower drive bay, fol- low these steps: 1. Disconnect the DC power cable and the interface cable from the back of the drive.

  • Page 134: Figure 6-12. 5.25-Inch Drive Removal

    When you replace the 5.25-inch drive, align the front of the drive flush with the tab at the front of 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. 6-14 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 135: Hard-Disk Drive Bracket

    Hard-Disk Drive Bracket drive-cage slide rail chassis slot hinge tabs (3) sliding tab Figure 6-13. Hard-Disk Drive Bracket Removal To remove the hard-disk drive bracket, follow these steps: 1. Disconnect the DC power cable and the interface cable from the back of each hard-disk drive installed in the hard-disk drive bracket.

  • Page 136: Hard-Disk Drive

    One hard-disk drive attaches to the hard-disk drive bracket at the sides of the drive. The other hard-disk drive attaches 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. 6-16 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 137: System Power Supply

    ystem Power Supply power supply DC power cables slot power-supply detent link securing tab Figure 6-15. 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.

  • Page 138: Expansion Cards

    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 expansion cards, leave the external cables attached to them.

  • Page 139: Expansion Card

    Expansion Card expansion card retaining screw card-slot opening card-mounting bracket riser board expansion-card connector Figure 6-17. Expansion-Card Removal 1. Disconnect any cables from the expansion card being removed. 2. Remove the expansion-card cage. 3. Remove the retaining screw from the card-mounting bracket. 4.

  • Page 140: Riser Board

    3. Remove the riser-board mounting screws. 4. Slide the riser board away from the release handle until it stops; then lift the riser board away from the expansion-card cage. 6-20 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 141: System Board

    ystem Board screw slots (5) tabs (5) Figure 6-19. System Board Removal To remove the system board, follow these steps: 1. Disconnect all cables from their connectors at the back of the computer. 2. Remove the expansion-card cage. 3. Disconnect all cables from the system board. 4.

  • Page 142: System Board Components

    (IDE2) (BATTERY) control panel diskette/tape drive primary EIDE system board jumpers connector (PANEL) interface connector interface connector (DSKT) (IDE1) front of computer Figure 6-20. System Board Components 6-22 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 143: Dimms

    DIMMs To remove a DIMM from one of the three DIMM sockets, follow these steps: 1. Remove the system power supply. 2. Locate the three DIMM sockets (see Figure 6-20). 3. To remove a DIMM, push outward on the DIMM socket’s securing clips until the DIMM is released from its socket.

  • Page 144: Figure 6-23. Installing A Video-Memory Upgrade Module

    1 through 6 to reseat the video-memory upgrade module and verify that the computer acknowledges the module. 7. Run the system diagnostics (Video Test Group) to test the new video- memory upgrade module. 6-24 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 145: Microprocessor

    Microprocessor To take advantage of future options in processor speed and functionality, you can replace the microprocessor on your system board with any Dell-supported microprocessor upgrade. The microprocessor upgrade kit is shipped with an SEC cartridge/heat sink assembly which includes the microprocessor, micro- processor heat sink, and L2-cache memory module.

  • Page 146: System Battery

    Then slide the SEC cartridge release latches out- ward to lock the assembly onto the metal standoffs. System Battery battery BATTERY socket Figure 6-25. System Battery Installation 6-26 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...
  • Page 147 To remove the system battery, follow these steps: 1. If possible, boot the system and enter the System Setup program. Then record important system configuration information (see Appendix A, “System Setup Program,” for details). 2. Turn off power to all peripherals, and disconnect the AC power cable from its AC outlet.
  • Page 148 6-28 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 149: Removing And Replacing Parts On The Net Pc Chassis

    Chapter 7 Removing and Replacing Parts on the Net PC Chassis his chapter provides procedures for removing the components, assemblies, and subassemblies in the OptiPlex NX Net PC chassis. If you are servicing a low-profile, midsize, or mini tower computer, use Chapter 4, “Removing and Replacing Parts on the Low-Profile Chassis,”...

  • Page 150: Precautionary Measures

    Vertical Orientation captive screw locator pins (2) (on underside of stand) front bezel Figure 7-1. Optional Stand Removal Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 151: Computer Cover

    To remove the stand, if one is installed, follow these steps: 1. Place the right side of the computer on a flat work surface. 2. Unscrew the captive screw using your fingers or a wide flat-blade screwdriver. 3. Pull the stand away from the computer. Disengage the locator pins that position and help secure the stand to the computer.

  • Page 152: Figure 7-3. Service Access Lock

    Before you reinstall the cover, fold all cables out of the way so that they do not interfere with the cover or with proper airflow inside the computer. You may have to press gently downward on the back edge of the cover while engaging the locking mechanism. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 153: Control Panel

    ontrol Panel cable retention tabs (2) mounting screw control panel cable chassis tabs (3) Figure 7-4. Control Panel Removal To remove the control panel, follow these steps: 1. Remove the power supply. 2. Disconnect the control panel cable from the PANEL connector on the system board (see Figure 7-7).

  • Page 154: Hard-Disk Drive

    3. Remove the expansion-card cage. 4. Remove the expansion card if one is installed. 5. Remove the four hard-disk drive mounting screws that attach the hard- disk drive to the expansion-card cage. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 155: System Power Supply

    ystem Power Supply power supply EIDE cable system-board power-supply DC power retention tab cables (2) hard-disk drive DC power cable cable tabs (2) chassis tabs (2) AC power receptacle screw Figure 7-6. System Power-Supply Removal To remove the system power supply, follow these steps: 1.

  • Page 156: System Board Components

    You must remove the expansion-card cage to remove or install the hard-disk drive, an expansion card, or the riser board. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 157: Expansion-Card Cage

    expansion-card cage EIDE cable DC power cable securing lever slots (2) tabs (2) Figure 7-8. Expansion-Card Cage Removal To remove the expansion-card cage, follow these steps: 1. Disconnect any external cables from the expansion card if one is installed. 2. Disconnect the DC power cable and the EIDE cable from the back of the hard-disk drive.

  • Page 158: Expansion Card

    2. Remove the retaining screw from the card-mounting bracket. 3. Grasp the expansion card by its corners, and carefully remove it from the expansion-card connector. 4. Disconnect any network or other I/O cables from the expansion card. 7-10 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 159: Riser Board

    Riser Board expansion-card cage tabs (2) riser board slots (2) riser-board mounting screw Figure 7-10. Riser Board Removal To remove the riser board, follow these steps: 1. Remove the expansion-card cage. 2. Remove the expansion card if one is installed. 3.

  • Page 160: Dimms

    You can upgrade video memory from 2 to 4 MB by installing a video-memory upgrade module in the video-memory upgrade socket on the system board. Adding additional video memory increases the system’s video performance and provides additional modes for high-resolution/expanded color applications. 7-12 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 161: Figure 7-13. Installing A Video-Memory Upgrade Module

    To install the video memory upgrade, follow these steps: 1. Remove the expansion-card cage. CAUTION: To avoid possible damage to the video-memory upgrade socket and/or video-memory upgrade module, the module is keyed and must be correctly positioned before inserting it into the socket. 2.

  • Page 162: Microprocessor

    Microprocessor To take advantage of future options in processor speed and functionality, you can replace the microprocessor on your system board with any Dell-supported microprocessor upgrade. The microprocessor upgrade kit is shipped with an SEC cartridge/heat sink assembly which includes the microprocessor, micro- processor heat sink, and L2-cache memory module.

  • Page 163: System Board

    2. Locate the SEC cartridge/heat sink assembly. 3. Disconnect the microprocessor fan connector from the 3-pin connector on the system board (labeled “FAN”), located between the SERIAL 2 connector and the MONITOR connector (see Figure 7-7). 4. Release the two securing clips near the base of the heat sink from the metal standoffs, as shown in Figure 7-14.

  • Page 164: System Battery

    (see Appendix A, “System Setup Program,” for details). 2. Turn off power to all peripherals, and disconnect the AC power cable from its AC outlet. 7-16 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...
  • Page 165 3. Remove the computer cover. 4. Remove the expansion-card cage, and locate the battery in the front right corner of the system board adjacent to the DIMM connectors (see Figure 7-7). CAUTION: If you pry out the battery with a blunt object, be careful not to touch the system board with the object.
  • Page 166 7-18 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 167: Appendix A System Setup Program

    Appendix A System Setup Program his appendix, which applies to all OptiPlex GXa and OptiPlex NX computer families, describes the System Setup program, which is used to change the sys- tem configuration information stored in NVRAM on the system board.
  • Page 168 2 MB SGRAM IDE Hard Disk: Auto XXXXX Service Tag: Diskette: Auto XXXXX Asset Tag: Speaker: Tab,Shift-Tab change fields change values Alt-P next Esc exit Alt-B reboot Figure A-1. System Setup Screens Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 169: Table A-1. System Setup Categories

    Table A-1. System Setup Categories Category Function Time Resets time on computer’s internal clock. Date Resets date on computer’s internal calendar. Diskette Drive A Identifies type of diskette drives installed. Cat- Diskette Drive B egory options always match physical locations of drives in computer.
  • Page 170 NOTE: An optional Wakeup On LAN-capable network card is required to use the Wakeup On LAN feature. Sound Enables (On) or disables (Off) the integrated sound controller. Enables (On) or disables (Off) the NIC. Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...
  • Page 171 Table A-1. System Setup Categories (continued) Category Function Mouse Enables or disables the built-in PS/2- compatible mouse port. Serial Port 1 Configures system’s built-in serial port 1. Serial Port 2 Configures system’s built-in serial port 2. Parallel Port Configures system’s built-in parallel port. The port’s I/O address may be set to 278h 3BCh, or 378h Otherwise, the port may be...
  • Page 172 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...

  • Page 173: Index

    Index Numbers BIOS, flash ROM, 1-4 block diagram 3.5-inch diskette drive removal low-profile computer, 1-28 low-profile computer, 4-9 midsize computer, 1-30 midsize computer, 5-10 mini tower computer, 1-31 mini tower computer, 6-11 Net PC computer, 1-35 5.25-inch drive assembly removal boot routine low-profile computer, 4-10 observing while troubleshooting, 2-3...
  • Page 174 Net PC computer, 7-12 NIC activity indicator, 1-6 types and sizes, 1-16 NIC link integrity indicator, 1-6 disk drives. See diskette drives, drives, power button, 1-8 hard-disk drives power indicator, 1-8 reset button, 1-7 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...
  • Page 175 diskette drives controller, 1-4 removal, low-profile computer, 4-9 EIDE subsystem, 1-4 removal, midsize computer, 5-10 eject button removal removal, mini tower computer, 6-12 low-profile computer, 4-5 DMA channel assignments, 1-21 midsize computer, 5-6 mini tower computer, 6-6 documentation, online, 1-17 enhanced manageability drives riser board for low-profile computer,...
  • Page 176 Net PC computer, 7-6 main memory, 1-4, 1-16 help, getting, 2-11 manageability, enhanced, 1-1 memory subsystem expansion using DIMMs, 1-16 flash ROM, 1-4 main memory, 1-4 secondary L2 cache, 1-3, 1-16 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...
  • Page 177 messages, error, 3-3 port assignments low-profile computer, 1-9 microprocessor midsize computer, 1-9 about, 1-3 mini tower computer, 1-10 options, 1-1 Net PC computer, 1-11 removal, low-profile computer, 4-20 removal, midsize computer, 5-22 POST beep codes removal, mini tower computer, 6-25 description, 3-1 removal, Net PC computer, 7-14 list of, 3-2...
  • Page 178 1-17, 1-23, 1-24 removal, midsize computer, 5-14 removal, mini tower computer, 6-17 SMART technology, 1-4 removal, Net PC computer, 7-7 specifications, technical, 1-36 stand for vertical orientation removal, Net PC computer, 7-2 Dell OptiPlex GXa and OptiPlex NX Systems Service Manual...
  • Page 179 System Setup program about, A-1 categories, A-3 universal power supply, 115-/230-VAC, key combination to enter, A-1 screens, A-2 upgrade options, 1-16 system unit. See computer video memory adding to low-profile computer, 4-18 tape drives adding to midsize computer, 5-20 about, 1-5 adding to mini tower computer, 6-23 removal, low-profile computer, 4-10 adding to Net PC computer, 7-12...
  • Page 181 ® www.dell.com Printed in the U.S.A. P/N 51555 Rev. A01...

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