HP Book 800CT Keyboard Failure, Machine is Locked Turn KEY, No Bootable Floppy Drive 0 Installed

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Message	Possible Cause
KEYBOARD FAILURE	The keyboard failed to respond to the
	RESET ID Command.
MACHINE IS LOCKED - TURN KEY	The system will not continue the boot
	sequence until you insert the key into the
	key lock and turn it.
NO BOOTABLE FLOPPY DRIVE 0 INSTALLED	No bootable floppy drive was detected.
	Possible solutions: 1) Power down the
	system and check all appropriate
	connections, cables, etc. 2) In
	configurations where no floppy drive is
	installed, run System Configuration Utility
	and make sure the diskette drive
	configuration item is set to “None”. 3)
	Replace the diskette drive if necessary.
NO INTERRUPTS FROM TIMER 0	The periodic timer interrupt is not
	occurring.
RAM PARITY ERROR AT LOCATION xxxx	A RAM parity error occurred at the
	specified (hexadecimal) location.
ROM AT xxxx (LENGTH YYYY) WITH NON-ZERO	An illegal adapter ROM was located at
CHECKSUM (zz)	the specified address. An external
	adapter (such as a video card) may be
	causing a conflict.
TIME/DATE CORRUPT - RUN SCU	The time and date stored in the real time
	clock have been corrupted, possibly by a
	power loss.
UNEXPECTED AMOUNT OF MEMORY - RUN SCU	The amount of memory detected by
	POST does not match the amount
	specified in CMOS RAM.
CMOS RAM TEST FAILED	A walking built test of CMOS RAM
	locations 0E (Hex) - 3F (Hex) failed.
DMA CONTROLLER FAULTY	A sequential read/write of the transfer
	count and transfer address registers
	within the primary and secondary DMA
	controllers failed.
FAULTY DMA PAGE REGISTERS	A walking bit read/write of the 16 DMA
	controller page registers starting at
	location 80 Hex failed.
FAULTY REFRESH CIRCUIT	A continuous read/write test of port 61h
	found that bit 4 (Refresh Detect) failed to
	toggle within an allotted amount of time.
INTERRUPT CONTROLLER FAILED	A sequential read/write of various
	Interrupt Controller registers failed.
ROM CHECKSUM INCORRECT	A checksum of the ROM BIOS does not
	match the byte value at F000:FFFF.

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Contents HP OmniBook 800CS/CT Page Table of Contents Hard Disk Drive Floppy Disk Drive CD-ROM Drive OmniBook 800 External Features List of FiguresDiagnostic Commands for Toggling Settings List of TablesIntroduction Resource Number/Address CommentsPage Part Product Overview Feature OmniBook 800 with MMX F1360 F1171 F1175 What’s New1MB RAM Product Features OmniBook 800 External FeaturesExploded Diagram Product at a GlanceParts Identification Number Part Number ReplaceableProduct Comparisons HP OmniBook With MMX Technology2MB 1MB ∙ RAM IDEDram Pcmcia ∙ PC IDBattery and accessories On battery Accessories Page Page Page Part Troubleshooting Power-On Self-Test Beep CodesPost Beep Codes Display Codes Post Display CodesMessage Possible Cause No Bootable Floppy Drive 0 Installed No Interrupts from TimerDMA Controller Faulty Faulty DMA page RegistersOmniBook Diagnostics Running the diagnostics programMain diagnostic screen Main Diagnostic Screen Running selected tests Special test hardware requirements Alternative methods for running testsLoop Back Connectors Serial Loop Back ConnectorPcmcia Type III extender card SyCard Solder BridgesCommand line options Diagnotic Command Line OptionsSwitch Description User interface commands Commands for test selectionDiagnostic Test Selection Commands Command DescriptionCommands for toggling test settings Diagnostic Commands for Toggling SettingsMouse switch Key Action Diagnostic Hidden Commands Commands for setting test parameters Diagnostic Test ParametersDetails on using the diagnostic tests CacheRAM, motherboard RAM, plug Upper PC CardTimers Lower PC CardReal time clock IRQ controllerBattery Serial portPrinter port Hard diskText mode mouse test KeyboardOUT TOPBOT LeftMouse Test Screen text mode Graphic mode mouse sine test Mouse Test Screen graphics mode Text mouse and graphic sine mouse tests selected Graphic draw screen mouse test selectedAudio DisplayDocked device Scsi Hard diskDock keyboard Dock EepromContents of the DMI Package Desktop Management Interface DMIDescription of DMI LAN CD-ROMMIF Installing the DMI Package from Windows Uninstalling the DMI Package from WindowsUsing the DMI Interface Setup and Configuration SCU Main ScreenSystem Menu Settings Boot Devices…System Menu Screen Date and Time…Passwords… Enable CacheStatus Panel Enable Status Panel Settings…Password Configuration System Password MatrixPC ID Input/Output Menu Screen Enabled IrDA IR External Devices…Audio Port… Video StretchedPower Menu Screen Port ActivityIRQ3, IRQ4, IRQ5 IRQ7, IRQ9Default Menu Screen Default Menu SettingsFactory Default SettingsExit Menu Screen Troubleshooting Tips OmniBook Troubleshooting TipsSymptom Call Center Repair Center OmniBook ComponentsPower/battery Computer won’t turn On/won’t bootLockup/computer freezes Computer noisy but working MiscellaneousSymptom Call Center Repair Center CD ROM Drive Troubleshooting BiosCD-ROM Troubleshooting Tips Trouble Possible Causes SolutionsResolving Docking Station Operating Problems If an external PS/2 mouse or keyboard doesn’t workResolving OmniBook Docking Problems If a network-enabled system locks up when rebootingIf your docking password isn’t accepted If network connections don’t workPage Part Hardware Repair Battery Removal ProcedureRequired Equipment Memory 16-MB Memory ModulesRemoving the Memory Module Replacement Procedure Hard Disk Drive Hard Drive ScrewsFolding the Keyboard Open DischargeHard Drive Removal Replacement Procedure Inserting the Hard Drive Hard Disk Drive Breather Holes IBM and Toshiba Hard Drive Breather Holes respectivelyRemoving the Mouse Replacement Procedure MouseBattery Latch Small PartsKeyboard Keyboard ScrewsSecurely into the zero insertion force connectors Under the keyboardDisplay Bottom Case Screws and Rubber FeetF1360 only F1171 F1175 Keyboard Support Plate ScrewsDisplay Flex Cables Top Case and Display Removal Intel Inside Sticker Placement Connector CPUHeat Transfer Disk Heat Transfer Disk and Keyboard Support InsulatorPage Logic PCA Board Electronic Serial NumberProgramming the Electronic Serial Number Overriding an Incorrect Electronic Serial NumberLogic PCA Removal Grommet and Bushing Placement Paw Active Paw Active RemovalOther Components and Accessories Page Page Appendices Appendix a Technical Specifications Mass Storage SpecificationsHard Disk Drive Floppy Disk DriveFloppy Disk Drive Specifications CD-ROM Drive SpecificationsCD-ROM Drive Inch Floppy DriveSystem Resources System Interrupts IRQsInterrupts for F1171 F1175 Interrupts for F1360DMA Channels Memory MapDMA Channels for F1171 F1175, and F1360 Memory Map for F1171 F1175Addresses O Address for F1171 F1175Ffff O Addresses for F1360Appendix B Hewlett-Packard Password Removal Policy Page Appendix C Hewlett-Packard TFT Display Quality Statement Appendix D OmniBook Diagnostics Bios Checksums OmniBook F1171 F1175 Bios ChecksumsAltera Boot Total SUM OmniBook F1360 Bios ChecksumsAppendix E OmniBook Diagnostics Error Messages Bios flash romsHewlett-Packard supplied test messages Fail C-F=XXXX#YYYYDisk Drives Scsi HD / internal HD / Floppy Scsi loopback test Watergate Software supplied test messages CPU test responsesCo-CPU test responses Memory test responses Cache test responsesVGA test responses Timer chip test responses Cmos RAM test responsesSound test responses Keyboard test responsesCOM test responses IRQ test resonsesDMA test responses HD test responsesCD ROM test responses Appendix F Part Numbers F1171 F1360F1175 External Battery LI-ION BatteryCD-ROM Power Cable SVC Kybrd TopcaseOB Lightweight Setup Guide EnglishSetup Guide E,G,F,S,I Setup Guide E,D,S,F,NFrench ItalianGerman SpanishPage HP Part Number F1360-90049