Compaq EXS Series, EX Series manual Disabling or Clearing the Power-On and Setup Passwords

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5.1.3Disabling or Clearing the Power-On and Setup Passwords

1.Turn off the computer and any external devices, and disconnect the power cord from the power outlet.

2.Disconnect the keyboard, monitor, and any other external devices connected to the computer.

3.Remove the computer cover.

4.Locate the header and jumper labeled E49.

5.Remove the jumper from pins 1 and 2. Place the jumper over pin 2 only, in order to avoid losing it.

6.Replace the computer cover.

7.Reconnect the external equipment.

8.Plug in the computer and turn on power. Allow the operating system to start. This clears the current passwords and disables the password features.

9.To re-enable the password features, repeat steps 1-4, then replace the jumper on pins 1 and 2.

10.Repeat steps 6-8, then establish new passwords.

Refer to the Computer Setup (F10 Setup) instructions to establish new passwords.

Compaq Deskpro EX and Deskpro EXS Series of Personal Computers 5-3

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Contents Maintenance & Service Guide Maintenance & Service Guide Maintenance & Service Guide Contents Removal and Replacement Procedures Specifications About this Guide Symbols and ConventionsTechnician Notes Locating Additional Information Chapter Product DescriptionFront Panel Controls and LEDs Computer FeaturesComponent/Function Rear Panel Connectors ComponentReference Drive Bay Configuration Drive PositionsSerial Number Location Spare Parts Spare Part Warranty Description Number Tier System UnitMass Storage Devices Cables Standard, Memory, and Expansion Boards Miscellaneous Plastics Kit Keyboards not illustrated Miscellaneous Screw Kit not illustratedMiscellaneous Parts not illustrated Shipping Boxes not illustratedDocumentation and Software not illustrated Description Spare Part NumberRemoval & Replacement Preliminaries Electrostatic Discharge InformationGenerating Static Relative Humidity Event 55% 40% 10%Preventing Electrostatic Damage to Equipment Personal Grounding Methods and EquipmentGrounding Workstations Method VoltageRoutine Care General Cleaning Safety PrecautionsRecommended Materials and Equipment Cleaning the Keyboard Cleaning the Computer CaseCleaning the Monitor Service Considerations Cleaning the MousePower Supply Fan Tools and Software RequirementsLithium Coin Cell Battery Cables and ConnectorsHard Drives Removal and Replacement Procedures Disassembly Sequence ChartDisassembly Preparation Feet Installation Cable Lock Access Panel Front Bezel Power Button Subpanel and Bezel Blanks Power Switch Assembly Drive Positions Using the Cable-Select Feature with Ultra ATA Devices Removing an Internal 3.5-Inch Hard Drive Removing an External 5.25-Inch Drive Removing an External 3.5-Inch Drive Page Expansion Boards Expansion Board SlotsRemoving a PCI Expansion Board Installing a PCI Expansion Board Page System Memory Memory Module InstallationDIMMs Page Graphics Cards Installing a GPA/AIMM Card 24Removal & Replacement Procedures AGP Card with a Type I Retention Mechanism Removing an AGP Card13.3 GPA/AIMM Card with a Type 2 Retention Mechanism AGP Card with a Type 2 Retention Mechanism Standard AGP Expansion Card Processor 30Removal & Replacement Procedures System Board Battery Chassis Fan Assembly Power Supply Connectors and Jumpers Connectors and JumpersClearing Cmos Disabling or Clearing the Power-On and Setup Passwords Seagate, Quantum, and Western Digital Hard Drive Jumper SettingsDefinition Seagate Quantum Western Digital Maxtor Definition J50 J48 J46 J44 J42Specifications SpecificationsSystem System Interrupts System DMAHardware IRQ System Function Hardware DMA System FunctionICH Fixed I/O Registers Port Register NameICH Fixed I/O Registers Port Register Name System Memory Map Size Memory Address System FunctionDrives MB Diskette DriveUltra ATA Hard Drives 10.0 GB 15.0 GBCD-ROM Drives 48X MaxCompaq Keyboard Scroll MouseSupported Graphics Resolutions Color Depth Mode Bits/pixel Refresh Rate HzIntel 3D Graphics NVIDIA M64 ProIndex 2Index