Dell Inspiron Xpi Cd Service Guide
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Beep Codes and Error Messages 3-3 System Error Messages The following table lists (in alphabetical order) system error messages that may appear on the display during the boot routine or during normal computer operation.5-1-1 5-1-2 5-1-3 5-2-1 5-2-2 5-2-3 5-2-4System power- management interrupt initialization failure BIOS shadowing failure Video BIOS shadowing failure Keyboard controller download failure CPU stepping failure System board failure Setup decompression and shadowing failureSystem board faulty Table 3-2. System Error Messages Message Definition Probable Causes Auxiliary device failureIntegrated trackball or external PS/2 mouse failed.Integrated trackball or external PS/2 mouse faulty. Bad command or File NameCommand entered does not exist or is not in pathname specified.Bad command or filename entered. Cache disabled due to failureMicroprocessor’s internal cache memory failed.System board faulty. Data errorDiskette or hard-disk drive cannot read the data.Faulty diskette/tape drive subsystem or hard-disk drive sub- sy stem. Table 3-1. POST Beep Codes (Continued) Beep Code Error Probable Causes
3-4 Dell Latitude XPi CD Service Manual Decreasing available memoryInformational message indicating memory is fail- ing (usually preceded by memory error message).One or more DIMMs faulty or improperly seated. Disk C: failed initializationHard-disk drive failed to initialize.Hard-disk drive data in System Setup does not match installed hard-disk drive, or hard-disk drive faulty. System files missing or corrupted. Diskette drive 0 seek failure Diskette read failureSystem cannot read dis- kette in diskette drive.Diskette faulty or incorrectly inserted in drive. System Setup con- tains incorrect settings. Diskette drive inter- face loose or faulty. Diskette drive faulty. Diskette sub- system reset failedDiskette subsystem failed to respond to reset com- mand from computer.System board faulty. Diskette write- protectedDiskette is write- protected, operation cannot be completed.Diskette write- protected. Drive not readyThe diskette may be missing from or improperly installed in the diskette drive.Defective or unfor- matted diskette. Error reading PCMCIA cardComputer cannot identify PC Card.PC Card faulty, improperly seated, or improperly con- figured. System board faulty. PC Card software faulty or incorrectly installed. Table 3-2. System Error Messages (Continued) Message Definition Probable Causes
Beep Codes and Error Messages 3-5 Extended memory size has changedAmount of memory recorded in NVRAM not matching memory installed in computer.One or more mem- ory module(s) faulty or improperly seated. Gate A20 failureComputer cannot enable protective mode.One or more mem- ory module(s) faulty or improperly seated. System board faulty. General failureMessage indicates sys- tem failure.Operating system unable to carry out the command. Hard-disk drive configuration errorComputer cannot identify hard-disk drive type.Installed hard-disk drive not compatible with computer. Hard-disk drive controller failure 0Hard-disk drive or control- ler not responding to commands from computer.System board faulty. Hard-disk drive controller failure 0The CD-ROM drive does not respond to commands from the computer.System board faulty. Hard-disk drive failure Hard-disk drive read failureHard-disk drive not responding to commands from computer.Computer needs rebooting. Hard-disk drive faulty. Invalid configuration information — please run System Setup programSystem Setup contains invalid settings. Incorrect settings in System Setup. Reserve battery weak or depleted. Keyboard con- troller failureKeyboard controller not responding.Cable or connector loose, or keyboard faulty. Keyboard clock line failure Keyboard data line failureKeyboard not responding. Cable or connector loose, or keyboard faulty. Table 3-2. System Error Messages (Continued) Message Definition Probable Causes
3-6 Dell Latitude XPi CD Service Manual Keyboard stuck key failureKeyboard key(s) jammed. For external key- board or keypad, cable or connector loose or keyboard faulty. For built-in key- board, keyboard faulty. For either keyboard, key may have been pressed while com- puter was booting. Memory address line failure at address, read value expecting value Memory control logic not operating properly.Installed memory module faulty or improperly seated. Memory alloca- tion errorThe software in use conflicts with the operating system, an application program, or a utilityFaulty application program Table 3-2. System Error Messages (Continued) Message Definition Probable Causes
Beep Codes and Error Messages 3-7 Memory data line failure at address, read value expecting value Memory double word logic fail- ure at a ddress, read value expecting value Memory odd/even logic failure at address, read value expecting value Memory write/ read failure at address, read value expecting value Memory not operating properly.Installed memory module faulty or improperly seated. No boot device availableComputer not recognizing diskette drive or hard-disk drive from which it is try- ing to boot.No boot device available. No boot sector on hard-disk driveNo boot sector on hard- disk drive.Operating system boot files missing or corrupted. No timer tick interruptTimer on system board malfunctioning.System board faulty. Non-system disk or disk error Not a boot dis- ketteUnable to boot from hard- disk drive or diskette drive.No operating system files on hard- disk drive or diskette. Optional ROM bad checksumROM in external device failed.Optional ROM in external device faulty. Sector not found MS-DOS ® unable to locate a sector on dis- kette or hard-disk drive.Bad sector or cor- rupted FAT on diskette or hard-disk drive. Table 3-2. System Error Messages (Continued) Message Definition Probable Causes
3-8 Dell Latitude XPi CD Service Manual Running the Dell Diagnostics The diagnostics contains tests that aid in troubleshooting the computer. If needed, see Chapter 4, “Running the Dell Diagnostics,” in the Reference and Troubleshooting Guide. The diagnostics diskette contains the following test groups: •RAM — Tests the main memory •System Set — Tests the system board’s primary functions •Video — Tests the video subsystem •Keyboard — Tests the keyboard subsystem •Mouse — Tests the mouse/trackball subsystem •Diskette Drives — Tests the diskette drive subsystem •Hard-Disk Drives (Non-SCSI) — Tests the IDE hard-disk drive subsystem •IDE CD-ROM Drives — Tests the CD-ROM drive subsystem Seek errorMS-DOS unable to find specific track on diskette or hard-disk drive.Defective diskette or hard-disk drive. Shutdown fail- ureMicroprocessor unable to reset.System board faulty. Time-of-day clock lost power Time-of-day clock stoppedSystem clock stopped. Reserve battery lost its charge. Time-of-day not set—please run the System Setup program.Time or date stored in RTC does not match system clock.Reserve battery lost its charge. System board faulty. Timer chip counter 2 failedTimer circuit on system board malfunctioning.System board faulty. Unexpected interrupt in protected modeKeyboard/mouse control- ler malfunctioning, or memory module(s) not responding.One or more mem- ory module(s) faulty or improperly seated. Warning! Bat- tery is criti- cally low.Main battery has lost its charge.Main battery needs recharging. Table 3-2. System Error Messages (Continued) Message Definition Probable Causes
Beep Codes and Error Messages 3-9
•Serial Ports — Tests the serial communication port
•Parallel Ports — Tests the parallel communication port
•SCSI Devices — Tests the SCSI controller in the Advanced Port
Replicator
•Network Interface — Tests the network controller in the Advanced Port
Replicator
•Serial Infrared — Tests the IrDA communications port
•Audio — Tests the built-in sound subsystem
To start the diagnostics, turn off the computer, insert a diagnostics diskette into
the diskette drive, and then turn on the computer.
Starting the diagnostics causes the Dell logo screen to appear, 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. If a main memory error is detected, a message appears on the
screen telling you which memory address failed.
If no errors are found in main memory, the diagnostics loads and the Diagnos-
tics Menu appears. This menu lets you choose the following options or exit to
the MS-DOS prompt:
•RUN QUICK TESTS — Runs selected tests from all test groups to quickly
locate the failure or to indicate where further testing may be needed to iso-
late a failure
•RUN ALL TESTS — Runs all tests for a thorough test of the computer
•RUN SPECIFIC TESTS — Tests a particular area or subsystem
CAUTION: To prevent possible damage to the original diagnostics dis-
kette, always use a backup copy of the diagnostics diskette when servicing a
user’s system. If the user has not already made a backup copy of the diagnostics
diskette, do so before you run the diagnostics.
Removing and Replacing Parts 4-1 Chapter 4 Removing and Replacing Parts T his chapter provides instructions for removing and replacing field- replaceable components, assemblies, and subassemblies. For removal and replacement procedures for factory-replaceable parts, see Appendix A, “Factory Repair Parts.” Unless otherwise noted, each procedure in this chapter assumes the following: •The computer and any attached peripherals are turned off, and the peripher- als are disconnected from the I/O panel on the back of the computer. •A part can be replaced by performing the removal procedure in reverse order. When the display assembly is open nearly 180 degrees, use a book or something similar to support the display assembly. The angle of the display assembly with respect to the bottom case should never be allowed to exceed 180 degrees. Also, when performing the procedures in this chapter, the locations or directions rela- tive to the computer are as shown in Figure 4-1 unless otherwise specified. Figure 4-1. Computer Orientation right side left side back of computer front of computer
4-2 Dell Latitude XPi CD Service Manual Recommended Tools Most of the procedures in this guide require the use of one or more of the fol- lowing tools: •Small flat-blade screwdriver •Jeweler’s screwdriver set •Number 1 magnetized Phillips-head screwdriver •Number 2 magnetized Phillips-head screwdriver •Chip-removal tool •Wrist grounding strap •Small plastic scribe •Nut drivers Precautionary Measures Before you start to work on the computer, perform the following steps: 1. Turn off the computer and any attached peripherals. NOTE: Make sure the computer is turned off and not in suspend-to-disk mode. See “Controlling Computer Power” in Chapter 1. 2. Disconnect the computer and any attached peripherals from AC power sources to reduce the potential for personal injury or shock. Also dis- connect any telephone or telecommunications lines from the computer. 3. Remove the main battery assembly from the battery compartment. Slide the battery compartment door downward until it stops (about 3/16 of an inch). Slide the main battery assembly out. WARNING: FOR YOUR PERSONAL SAFETY AND PROTECTION OF THE EQUIPMENT, PERFORM THE FOLLOWING STEPS IN THE SEQUENCE LISTED.