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Dell Dimension XPS H266 Service Manual

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Summary of Contents for Dell Dimension XPS H266

  • Page 1 Š ®...
  • Page 3 Š ®...
  • Page 4 International Business Machines Corporation; VESA is a registered trademark of Video Electronics Standards Association. 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 5: Table Of Contents

    Contents Chapter 1 System Overview....... 1-1 System Features ..........1-2 Advanced Expansion Subsystem .
  • Page 6 Chapter 3 Beep Codes and Error Messages ....3-1 POST Beep Codes ..........3-1 System Error Messages .
  • Page 7 Advanced Screen ......... . .A-7 Peripheral Configuration Submenu .
  • Page 8 Figure 4-14. Microprocessor-Fan Assembly Removal ....4-14 Figure 4-15. Card-Guide Assembly Removal ..... . 4-15 Figure 4-16.
  • Page 9 Table A-8. Security Screen Categories ......A-12 Table A-9. Power Screen Categories ......A-13 Table A-10.
  • Page 10 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 that came with...

  • Page 11: Chapter 1 System Overview

    The Dell Dimension XPS H233 and XPS H266 systems are available in either a desktop or a mini tower configuration. Both configurations use the same system board and base chassis.

  • Page 12: System Features

    Features In addition to the standard features found in a traditional PC, the Dell Dimension XPS H233 and XPS H266 systems include the following new and/or advanced features: • An Intel Pentium II microprocessor with MMX technology, specifically designed to handle complex multimedia and communications software.

  • Page 13: Figure 1-1. Computer Orientation

    back back left side right side left side right front front Mini Tower Computer Desktop Computer Figure 1-1. Computer Orientation CAUTION: To avoid possible data or file structure corruptions, the reset button should only be used when the system cannot be rebooted by press- ing <Ctrl><Alt><Del>.

  • Page 14: Figure 1-2. Desktop Computer Features

    (typical) 3.5-inch diskette drive power button hard-disk drive access indicator reset button card guide assembly and primary hard-disk drive front bezel Figure 1-2. Desktop Computer Features Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 15: Figure 1-3. Mini Tower Computer Features

    microprocessor fan power supply secondary hard-disk system board drive bracket expansion-card drive cage slots drive bays (typical) 3.5-inch diskette drive power button hard-disk drive access indicator card guide assembly reset button and primary hard-disk drive front bezel Figure 1-3. Mini Tower Computer Features System Overview...

  • Page 16: Advanced Expansion Subsystem

    Control Panel. Windows 95 documentation provides instructions on using the Device Manager to manage resources and resolve conflicts. Because Dell ships only Plug and Play and PCI expansion cards on Dell Dimension systems that have a non-Plug-and-Play operating system, the ICU is not provided with systems.

  • Page 17: Eide Subsystem

    Chapter 2, “Using Configuration Software,” in the Reference Guide and the “Configuring Expansion Cards” section in the online System User’s Guide (located in the Dell Accessories folder) provide instructions for using the ICU to configure legacy ISA expansion cards. The expansion-card slots include three ISA expansion-card connectors and four PCI expansion-card connectors.

  • Page 18: Computer Service

    The combined load on the +3.3 VDC and +5 VDC outputs cannot exceed 140 W. The +12-VDC output line can withstand surges of up to 11.0 A to support disk start-up operations. The +5 VSB (volts standby) is sometimes called “flea power.” Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 19: Dc Power Distribution

    DC Power Distribution Figures 1-5 through 1-9 provide the following information about DC power distribution: • Power-supply cable identification • Typical DC power connections for diskette, tape, CD-ROM, and hard-disk drives • Power distribution to sockets and connectors on the system board •...

  • Page 20: Figure 1-6. Dc Power Distribution

    +5 VDC MOUSE +5 VDC 1.5-V 2.1–2.8 V converter converter fuse +5 VDC +2.1–2.8 VDC +1.5 VDC CPU/system J8L1 +12 VDC logic system board Figure 1-6. DC Power Distribution 1-10 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 21: Dc Power Connector Pin Assignments

    DC Power Connector Pin Assignments The power-supply output voltages can be measured at the back (wire side) of the DC power connectors without disconnecting them. Figures 1-7 through 1-9 show the wire side of the connectors. –5 VDC (white) +5 VDC (red) common (black) +5 VDC (red) +5 VDC (red)

  • Page 22: Figure 1-8. Dc Power Connectors P2, P3, P4, P5, And P6

    Figure 1-8. DC Power Connectors P2, P3, P4, P5, and P6 common (black) +3.3 VDC (orange) common (black) +3.3 VDC (orange) common (black) +3.3 VDC (orange) Figure 1-9. DC Power Connector P7 1-12 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 23: System Board

    System Board The subsections that follow provide service-related information about system board components. mouse connector 3.3-V power SEC cartridge (MOUSE) power input connector input connector connector (SLOT 1) (POWER) (J7M1) keyboard connector battery socket (BT9M1) (KEYBRD) microprocessor fan USB connectors connector (J8L1) (USB) primary EIDE channel...

  • Page 24: System Board Jumpers

    System Board Jumpers See Figure 1-11 and Table 1-2 for jumper settings and descriptions. Figure 1-11. System Board Jumpers 1-14 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 25: Table 1-2. System-Board Jumper Descriptions

    Table 1-2. System-Board Jumper Descriptions Jumper Settings Description A, pins 1-3; B, pins 1-6; C, pins 1-3 (microprocessor speed) The microprocessor’s internal speed is 233 MHz. The microprocessor’s internal speed is 266 MHz. A, pins 4-6 (reserved) Reserved (do not change). C, pins 4-6 (clear CMOS) System setup settings are retained when the system boots (default setting).

  • Page 26: Interrupt Assignments

    * The PCI IRQ line is assigned to an available IRQ line after all ISA expansion cards have been configured. If an ISA expansion card is configured for IRQ11, the PCI IRQ is as- signed to another available IRQ line. 1-16 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 27: Dma Channel Assignments

    MA Channel Assignments Table 1-4. DMA Channel Assignments DREQ Line Used By/Available DREQ0 Default audio DMA channel assignment DREQ1 Default audio DMA channel assignment DREQ2 Generated by I/O controller to enable DMA cycle for attached diskette drive DREQ3 Available for use by an expansion card DREQ4 Reserved —...

  • Page 28: Technical Specifications

    PCI expansion-card connectors....four (one connector shares card-slot opening with ISA expansion-card connector) 1-18 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...
  • Page 29 Table 1-5. Technical Specifications (continued) System Clocks System clock frequency ..66 MHz (matches external processor speed) Diskette/communications ports frequency ... . . 24 MHz (derived from system clock) Memory SIMM sockets .
  • Page 30 Power indicator... . . green LED Hard-disk drive access indicator ....green LED 1-20 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...
  • Page 31 Table 1-5. Technical Specifications (continued) Power DC power supply: Wattage ....200 W Input voltage ... . 90 to 135 VAC at 60 Hz or 180 to 265 VAC at 50 Hz Heat dissipation.
  • Page 32 Operating ....-16 to 3048 m (-50 to 10,000 ft) Storage ....-16 to 10,600 m (-50 to 35,000 ft) 1-22 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 33: Basic Troubleshooting

    A brief explanation of how to load and start the diagnostics is provided in “Running the Diagnostics” at the end of this chapter. Dell recommends that you perform these procedures in the order they are presented in this chapter.

  • Page 34: External Visual Inspection

    For proper settings of the 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 Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 35: Observing The Boot Routine

    To observe problem indications during the boot routine, follow these steps: 1. Insert a copy of the Dell Diagnostics Diskette into drive A. Turn on all peripherals and the computer. If the computer is already on, press the reset button or <Ctrl><Alt><Del> to reboot the system.

  • Page 36: Internal Visual Inspection

    Does the Diagnostics Menu display? Yes. See “Running the Diagnostics” found later in this chapter. No. Proceed to step 6. 6. Insert another copy of the Dell Diagnostics Diskette into the diskette drive, and reboot the computer. Does the Diagnostics Menu display? Yes.

  • Page 37: Eliminating Resource Conflicts

    2. Remove the computer cover. NOTE: For your safety and protection of the system, observe the guidelines listed in “Precautionary Measures” in Chapter 4. 3. Verify that the single-edge contact (SEC) cartridge, SIMMs, and expan- sion cards are fully seated in their sockets or connectors. WARNING: The SEC cartridge/heat sink assembly can get extremely hot.

  • Page 38: Running The Diagnostics

    Dell recommends that users make several copies of this diskette to ensure that one is always available. To start the diagnostics, turn off the computer, insert a copy of the Dell Diagnos- tics Diskette into drive A, and then turn on the computer.

  • Page 39: Beep Codes And Error Messages

    Chapter 3 Beep Codes and Error Messages his chapter describes beep codes and system error messages that can occur during system start-up or, in the case of some failures, during normal system operation. In some cases, the system may display error messages and emit beep codes simultaneously.

  • Page 40: Table 3-1. Post Beep Codes

    NVRAM shutdown register Defective system board. read/write error. Cache memory error. Defective microprocessor. 1–2 No video adapter detected. Defective or missing video adapter. 1–3 No monitor detected. Defective or missing monitor. Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 41: System Error Messages

    ystem Error Messages Some system error messages indicate a fatal error, in which case the system cannot usually be rebooted until an appropriate hardware change has been made. The following messages indicate a fatal error: • 8042 Gate - A20 Error •...
  • Page 42 Drive D failed. Drive D needs D: Drive Failure reformatting. Drive interface or power cable not prop- erly connected. Defective drive inter- face or power cable. Defective drive D. Dell Dimension XPS H233 and XPS H266 Systems Service Manual...
  • Page 43 Table 3-2. System Error Messages (continued) Message Definition Probable Causes System cannot boot Diskette in drive A Diskette Boot from diskette in drive A. does not contain boot- Failure able operating system, or bootable operating system is corrupt. Error condition Defective system DMA #1 Error occurred in DMA...
  • Page 44 System cannot Keyboard improperly Keyboard is communicate with connected or faulty. Locked... keyboard. Unlock It ECC detected a A SIMM is faulty. Uncorrectable multiple-bit error it ECC Error could not correct. Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 45: Removing And Replacing Parts

    Chapter 4 Removing and Replacing Parts his chapter provides procedures for removing and replacing components, assemblies, and subassemblies of the computer. Unless otherwise noted, each procedure assumes the following: • The computer cover has already been removed. • A part can be replaced by performing the removal procedure in reverse order.

  • Page 46: Computer Cover

    4. Using your index fingers, push inward on the two cover release latches to release the cover. 5. Slide the cover approximately one inch toward the back of the com- puter. Then lift the cover off the computer. Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 47: Front Bezel

    ront Bezel front bezel tabs (3) Figure 4-2. Front-Bezel Removal (Mini Tower Chassis) tabs (3) front bezel Figure 4-3. Front-Bezel Removal (Desktop Chassis) To remove the front bezel, follow these steps: 1. Press the three tabs along the edge of the front bezel. 2.

  • Page 48: Drives

    2. Press the two tabs on the right side of the front-panel insert. 3. Rotate the right side of the front-panel insert outward to disengage the retaining hook on the left side of the insert from the chassis. Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 49: Drive Cage

    Drive Cage drive cage screw drive cage slots Figure 4-5. Drive Cage Removal NOTE: The drive cage is the same in both the desktop and mini tower comput- ers. The drive cage in the mini tower computer is mounted 90 degrees clockwise from the one shown in Figure 4-5.

  • Page 50: 5.25-Inch Drive

    When you replace a drive, be sure to set the jumpers on the replacement drive the same as the jumpers on the drive you removed. For additional information about jumper settings on EIDE drives, see “EIDE Subsystem” in Chapter 1. Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 51: Upper 3.5-Inch Drive

    Upper 3.5-Inch Drive drive-assembly mounting screws (2) drive-bracket mounting screws (2) drive bracket Figure 4-7. Upper 3.5-Inch Drive Removal The upper 3.5-inch drive uses a drive bracket between the drive and the right side of the drive cage. To remove a drive from the upper 3.5-inch drive bay, follow these steps: 1.

  • Page 52: Lower 3.5-Inch Drive (Mini Tower Computer Only)

    When you replace a drive, be sure to set the jumpers on the replacement drive the same as the jumpers on the drive you removed. For additional information about jumper settings on EIDE drives, see “EIDE Subsystem” in Chapter 1. Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 53: 3.5-Inch Diskette Drive

    3.5-Inch Diskette Drive drive-release tabs Figure 4-9. 3.5-Inch Diskette Drive Removal To remove the 3.5-inch diskette drive, follow these steps: 1. Remove the front bezel. 2. Disconnect the power and interface cables from the back of the 3.5-inch diskette drive. 3.

  • Page 54: Primary Hard-Disk Drive

    When you replace a hard-disk drive, be sure to set the jumpers on the replace- ment drive the same as the jumpers on the drive you removed. For additional information about jumper settings on EIDE drives, see “EIDE Subsystem” in Chapter 1. 4-10 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 55: Secondary Hard-Disk Drive

    Secondary Hard-Disk Drive secondary hard-disk drive assembly drive-assembly mounting screws (2) Figure 4-11. Secondary Hard-Disk Drive Assembly Removal To remove the secondary hard-disk drive, follow these steps: 1. Remove the front bezel. 2. Disconnect the power and interface cables from the back of the second- ary hard-disk drive.

  • Page 56: Figure 4-12. Secondary Hard-Disk Drive Removal

    When you insert the replacement hard-disk drive into the drive bracket, be sure the two tabs on the bracket fit into the mounting holes on the side of the drive. 4-12 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 57: Power Supply

    ower Supply power-supply mounting screws (2) power supply Figure 4-13. Power Supply Removal To remove the power supply, follow these steps: 1. Disconnect the AC power cable at the power supply. 2. Disconnect the DC power cables from the POWER and J7M1 connec- tors on the system board (see Figure 4-17).

  • Page 58: Microprocessor Fan Assembly

    2. At the back of the chassis, press the two release buttons, and lift the microprocessor fan assembly out of the chassis. Maintain upward pressure on the fan assembly while you press the two release buttons. 4-14 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 59: Card Guide Assembly

    ard Guide Assembly card guide assembly mounting tabs (4) Figure 4-15. Card-Guide Assembly Removal To remove the card guide assembly, follow these steps: 1. Disconnect any cables connected to full-length expansion cards, and remove these expansion cards. Note the location of each connector and the orientation of any cables attached to the expansion cards before disconnecting these cables.

  • Page 60: Control Panel Board

    1. Remove the front bezel. 2. Remove the card guide assembly. 3. Press the mounting tab to release the control panel board from the card guide assembly, and remove the control panel board. 4-16 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 61: System Board Components

    ystem Board Components Figure 4-17 shows the locations of components on the system board. The sub- sections that follow explain how to remove various system board components. 3.3-V power mouse connector SEC cartridge power input connector input connector (MOUSE) connector (SLOT 1) (POWER) (J7M1) keyboard connector...

  • Page 62: Expansion Cards

    2. Remove the retaining screw from the card-mounting bracket. 3. Grasp the expansion card by its corners, and carefully pull it out of its expansion-card connector. 4-18 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 63: Simms

    SIMMs cutout back of computer Figure 4-19. SIMM Removal To remove a SIMM, push outward on each of the SIMM socket’s metal tabs (see step 1 of Figure 4-19), and rotate the SIMM in the direction of the arrows (see steps 2 and 3 of Figure 4-19) until it is released from its socket. To replace a SIMM, position it in its socket as shown in step 1 of Figure 4-20.

  • Page 64: Sec Cartridge And Heat Sink Assembly

    To install the replacement SEC cartridge and heat sink assembly, first verify that the cartridge release latches are pulled out. Then slide the SEC cartridge into the guide bracket assembly, with the heat sink toward the front of the computer, and 4-20 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 65: Battery

    firmly seat the assembly. Up to 25 pounds of force is required to seat the SEC cartridge. Slide the retainer bar back into position on the heat sink support. Battery battery battery socket Figure 4-22. Battery Removal WARNING: There is a danger of the new battery exploding if it is incorrectly installed.

  • Page 66: System Board

    6. Remove the screws that secure the system board to the chassis (see Figure 4-24). 7. Carefully lift the system board out from the plastic standoffs (see Figure 4-24), and remove the board from the chassis. 4-22 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 67: Figure 4-24. System Board Mountings

    screws (5) plastic standoffs Figure 4-24. System Board Mountings 8. Place the system board on a level surface. Protect the surface with an antistatic bag or other protective material. 9. Remove the SEC cartridge and heat sink assembly as described in “SEC Cartridge and Heat Sink Assembly”...

  • Page 68: Figure 4-25. Guide-Bracket Assembly Removal

    I/O gasket to prevent EMI leakage. CAUTION: Failure to install the system board exactly as described may result in EMI leakage that could interfere with other electronic devices. 4-24 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 69: Appendix A System Setup Program

    Appendix A System Setup Program his appendix describes the system setup program, which is used to change the system configuration information stored in CMOS and NVRAM on the sys- tem board. To enter the system setup program, follow these steps: 1.

  • Page 70: Main Screen

    Secondary IDE Master Identifies the first drive attached to the second- ary EIDE interface, usually a CD-ROM or tape drive. See the “Device Configuration Sub- menu” subsection in this appendix. Dell Dimension XPS H233 and XPS H266 Systems Service Manual...
  • Page 71 Table A-1. Main Screen Categories (continued) Category Function Secondary IDE Slave Identifies the second drive attached to the sec- ondary EIDE interface, usually a CD-ROM or tape drive. See the “Device Configuration Sub- menu” subsection in this appendix. Boot Options Displays a submenu.

  • Page 72: Ide Device Configuration Submenu

    If you select Auto Detected (the default), the system BIOS uses the fastest pro- grammed I/O protocol supported. If you select Disabled, programmed I/O is turned off. Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 73: Boot Options Submenu

    Boot Options Submenu Figure A-3. Boot Options Submenu Table A-3. Boot Options Submenu Categories Category Function First Boot Device Determines which device the system tries to boot from first. Options for this category are as follows: • Floppy — Diskette drive A •...
  • Page 74 Controls the amount of time a key must be Programming pressed before the key-repeat function starts and how many characters per second are output once the key-repeat function has started. Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 75: Advanced Screen

    Advanced Screen Figure A-4. Advanced Screen Table A-4. Advanced Screen Categories Category Function Processor Type Displays type of microprocessor installed. Processor Speed Displays internal speed of the microprocessor. Cache Size Indicates the amount of secondary cache mem- ory installed. Peripheral Configuration Displays a submenu.

  • Page 76: Peripheral Configuration Submenu

    IRQ line for the port. The avail- able port designations are COM1, COM2, COM3, and COM4; available I/O addresses are 3F8h, 3E8h, 2F8h, and 2E8h; and available interrupts are IRQ3 and IRQ4. Dell Dimension XPS H233 and XPS H266 Systems Service Manual...
  • Page 77 Table A-5. Peripheral Configuration Submenu Categories (continued) Category Function Parallel Port Interface Configures the built-in parallel port on the system board. Set this category to Auto Con- figured (the default) or to Disabled, or select a specific port designation, I/O address, and IRQ line for the port.

  • Page 78: Chipset Configuration Submenu

    Indicates the type of SIMMs installed in the first pair of SIMM sockets (J6J1 and J6J2). Bank 1 Indicates the type of SIMMs installed in the second pair of SIMM sockets (J7J1 and J7J2), if any. A-10 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 79: Plug And Play Configuration Submenu

    Plug and Play Configuration Submenu Figure A-7. Plug and Play Configuration Submenu Table A-7. Plug and Play Configuration Submenu Categories Category Function Configuration Mode Configuration Mode determines whether the sys- tem configures Plug-and-Play devices through the system BIOS or through the operating system. Options are Use BIOS Setup and Use PnP OS.

  • Page 80: Security Screen

    NOTE: Some computer systems do not display this category. When Setup Password is set to Installed, set- ting Password Status to Locked prevents an assigned system password from being changed or cleared. A-12 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 81: Power Screen

    Power Screen Figure A-9. Power Screen Table A-9. Power Screen Categories Category Function Advanced Power Enables or disables all the other categories on Management the Power screen. IDE Drive Power Down When set to Enabled (the default), IDE Drive Power Down allows most EIDE hard-disk drives to automatically switch into low-power mode after a specified period of system inactivity (called a time-out).
  • Page 82 AC power. If this category is set to Disabled, you must restart the system manually after a loss of AC power. A-14 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 83: Exit Screen

    Exit Screen Figure A-10. Exit Screen Table A-10. Exit Screen Categories Category Function Exit Saving Changes Saves any changes you have made, exits the system setup program, and restarts the system Exit Discarding Changes Discards any changes you have made, exits the system setup program, and restarts the system Load Setup Defaults Discards any changes you have made, reverts...
  • Page 84 A-16 Dell Dimension XPS H233 and XPS H266 Systems Service Manual...

  • Page 85: Index

    Index connectors back panel, 1-6 adapter card, 1-6, 4-18 system board, 1-13 control-panel board removal, 4-16 cover removal, 4-2 back-panel features, 1-6 battery location, 1-13 DC power removal, 4-21 connector pin assignments, 1-11 beep codes diagram, 1-10 about, 3-1 distribution, 1-9 list of, 3-2 diagnostics, 2-6 bezel removal, 4-3...
  • Page 86 1-16 SCSI support, 1-2 ISA expansion-card slots, 1-6 SEC cartridge, 1-1 guide-bracket assembly removal, 4-24 removal, 4-20 secondary hard-disk drive removal, 4-11 jumpers, 1-14 SIMMs, 1-13, 4-19 sockets Dell Dimension XPS H233 and XPS H266 Systems Service Manual...
  • Page 87 battery, 1-13 system setup program (continued) SIMMs, 1-13 Peripheral Configuration submenu, A-8 Plug and Play Configuration system battery removal, 4-21 submenu, A-11 system board Power screen, A-13 components, 1-13 Security screen, A-12 removal, 4-22 system board jumpers location, 1-14 settings, 1-15 technical specifications, 1-18 system error messages, 3-3 troubleshooting...
  • Page 89 ® Printed in the U.S.A. P/N 84980...

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