Dell GX1 technical specifications CPU Speed, Num Lock, Chassis Intrusion, DAC Snoop

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Using the System Setup Program: Dell OptiPlex GX1 Low-Profile Managed PC Systems

15M - 16M

CPU Speed

CPU Speed indicates the processor speed at which your system boots.

Press the left- or right-arrow key to toggle the CPU Speed option between the resident microprocessor's rated speed (the default) and a lower compatibility speed, which lets you accommodate speed-sensitive application programs. A change to this option takes effect immediately (rebooting the system is not required).

You can also toggle between the rated processor speed and the compatibility speed while the system is running in real mode by pressing <Ctrl><Alt><\>. (For keyboards that do not use American English, press <Ctrl><Alt><#>.)

Num Lock

Num Lock determines whether your system boots with the Num Lock mode activated on 101- or 102-key keyboards (it does not apply to 84-key keyboards).

When Num Lock mode is activated, the rightmost bank of keys on your keyboard provides the mathematical and numeric functions shown at the tops of the keys. When Num Lock mode is turned off, these keys provide cursor-control functions according to the label on the bottom of each key.

Chassis Intrusion

Chassis Intrusion displays the status of the system chassis intrusion monitor. The settings for this option are Enabled, Enabled-Silent, or Disabled. The default is Enabled.

If the computer cover is removed while the intrusion monitor is set to Enabled, the setting changes to Detected, and the following message appears during the boot sequence at the next system start-up:

Alert! Cover was previously removed.

If the computer cover is removed while the intrusion monitor is set to Enabled-Silent, the setting changes to Detected, but the alert message is not displayed during the boot sequence at the next system start-up.

If the intrusion monitor is set to Disabled, no intrusion monitoring occurs and no messages are displayed.

To reset the Detected setting, enter the System Setup program during the system's power-on self-test (POST). Highlight the Chassis Intrusion option and press the left- or right-arrow key to choose Enabled, Enabled-Silent, or Disabled.

NOTE: When the setup password is enabled, you must enter the setup password before you can reset the Chassis Intrusion option.

DAC Snoop

DAC Snoop lets you correct video problems that may occur when certain video add-in cards are used. The default is Off. If you are using a video add-in card and problems such as incorrect colors or blank windows occur, set DAC Snoop to On.

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Contents Initial release 7 Dec Last revised 31 Jan System Features OverviewHardware Features 640 × True-color 32 bpp 85 Hz 800 ×Software Features Manageability Features Dell OpenManage ProgramFault Management Auto Power On Wakeup On LANTemperature Monitoring Security FeaturesConnecting Peripheral Devices O Ports, Connectors, and IndicatorsUSB Connectors Parallel Port ConnectorMouse Connector Integrated NIC ConnectorSerial Port Connectors Audio ConnectorsVideo Connector Keyboard ConnectorUsing the Power Switch Using the Optional Stand for Vertical Orientation Attaching the Optional Stand for Vertical OrientationEnergy Star Compliance Energy Star EmblemAccessing Online Documentation Getting HelpEntering the System Setup Program Enter the System Setup program as followsSystem Setup Screens System Setup ScreensPage System-Setup Navigation Keys Keys Action Using the System Setup ProgramSystem Setup Options TimeDiskette Drive A, Diskette Drive B, and Use ZIP as a or B DateDrives Primary and Secondary Reserved Memory Chassis Intrusion CPU SpeedNum Lock DAC SnoopSystem Password Keyboard ErrorsPassword Status Boot Sequence Device-List Screen Navigation Keys Keys ActionSample Device List Screen Setup Password Saving Monitor Power Power ManagementSaving Eide Hard-Disk Drive Power Sound MouseParallel Port Parallel ModeSerial Port 1 and Serial Port IDE Hard DiskSpeaker Using the System Password FeatureDiskette System Data OptionsAssigning a System Password Using Your System Password to Secure Your System Type the password and press EnterUsing the Setup Password Feature Deleting or Changing an Existing System PasswordAssigning a Setup Password Page Responding to Error Messages Back to ContentsOverview Quick Start About the ICUPreparing to Use the ICU When to Run the ICUICU Database Starting the ICU Accessing HelpBacking Up the ICU Diskette Making Selections in the ICU Adding a Listed CardICU Keys Keys Action Add Network Card Dialog Box Configuration Settings Dialog Box for Assigning an IRQ Line Adding an Unlisted Card Specify Interrupt Dialog Box Specify I/O Port Dialog Box Modifying a Card Removing a Card Viewing Resources System Resource Usage Dialog BoxLocking and Unlocking Cards Saving the System ConfigurationExiting From the ICU Locking and Unlocking All ResourcesLocking and Unlocking Configuration Resources Safety First For You and Your Computer Before You BeginRemoving the Computer Cover Unpacking Your Hardware OptionReplacing the Computer Cover Replacing the Computer CoverInside Your Computer Computer Orientation ViewJumpers System Board JumpersSystem-Board Jumper Settings Description BUS66MSystem Board and Riser Board Labels LPT1Removing and Replacing the Expansion-Card Cage Removing the Expansion-Card CageReplacing the Expansion-Card Cage System Board Features Expansion Cards Expansion Cards Expansion SlotsRemoving the Filler Bracket Removing an Expansion Card Adding Memory DIMMs and Dimm SocketsPerforming a Memory Upgrade Installing a Dimm Installing a Dimm Removing a Dimm Adding Video MemoryInstalling a Video-Memory Upgrade Module Upgrading the Microprocessor Removing the MicroprocessorReplacing the System Battery Page System Battery and Battery Socket Drive Locations Removing and Replacing Front-Panel Inserts Removing the Front-Panel Insert for a 5.25-Inch BayConnecting Drives DC Power Cable ConnectorInstalling a Drive in the 5.25-Inch Drive Bay Removing the 3.5-Inch Diskette Drive/Bracket Assembly Installing the 5.25-Inch Diskette Drive Bracket Attaching Cables to a Drive in the 5.25-Inch Drive Bay Installing an Eide Hard-Disk Drive Eide Drive AddressingRemoving the Hard-Disk Drive Bracket Securing the Hard-Disk Drive to the Bracket ALERT! Cover was previously removed Page Installing Scsi Devices Scsi Configuration GuidelinesGeneral Procedure for Installing Scsi Devices Page ALERT! Cover was previously removed Partitioning and Formatting Scsi Hard-Disk Drives System Information MicroprocessorExpansion Bus Drives MemoryPorts Video Key CombinationsPhysical Controls and IndicatorsPower EnvironmentalBack to Contents ICU Error Messages Message Probable Cause Corrective ActionLoaded card is not a Conflictingcard This is An Eisa system. Use Message Configuration Manager MessagesProbable Cause Corrective Action Error Failed to activate device, CSN=Card Select Number See Modifying a Card for instructions See Adding a Listed Card for instructions
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