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Advanced Features

Dell™ OptiPlex™ GX270 Systems User's Guide

LegacySelect Technology Control

LegacySelect technology control offers legacy-full, legacy-reduced, or legacy-free solutions based on common platforms, hard-drive images, and help desk procedures. Control is provided to the administrator through system setup, Dell OpenManage™ IT Assistant, or Dell™ custom factory integration.

LegacySelect allows administrators to electronically activate or deactivate connectors and media devices that include serial and USB connectors, a parallel connector, PCI slots, a floppy drive, and a PS/2 mouse. Connectors and media devices that are deactivated make resources available. You must restart the computer to effect the changes.

Manageability

Alert Standard Format

ASF is a DMTF management standard that specifies "pre-operating system" or "operating system-absent" alerting techniques. The standard is designed to generate an alert on potential security and fault conditions when the operating system is in a sleep state or the system is powered down. ASF is designed to supersede previous operating system-absent alerting technologies.

Your computer supports the following ASF version 1.0 alerts and remote capabilities:

Alert	Description
Chassis: Chassis Intrusion – Physical Security Violation/Chassis Intrusion – Physical Security Violation Event Cleared	The computer chassis has been opened or the chassis intrusion alert has been cleared.
BIOS: Corrupt BIOS/Corrupt BIOS Cleared	The BIOS has been corrupted or the BIOS corruption has been resolved.
Boot: Failure to Boot to BIOS	The BIOS did not complete loading upon initiation.
Password: System Password Violation	The system password is invalid (alert occurs after three failed attempts).
CPU: CPU DOA Alert/CPU DOA Alert Cleared	The microprocessor is not functioning.
Heartbeats: Entity Presence	Periodic heartbeats have been transmitted to verify system presence.
Cooling Device: Generic Critical Fan Failure/Generic Critical Fan Failure Cleared	The fan speed (rpm) is out of limits or the fan speed (rpm) problem has been resolved.
Connectivity: Ethernet Connectivity Enabled/ Ethernet Connectivity Disabled	The ethernet connectivity is enabled or the ethernet connectivity is disabled.

For more information about Dell's ASF implementation, see the ASF User's Guide and the ASF Administrator's Guide, which are available on the Dell Support website at support.dell.com.

Dell OpenManage IT Assistant

IT Assistant configures, manages, and monitors computers and other devices on a corporate network. IT Assistant manages assets, configurations, events (alerts), and security for computers equipped with industry-standard management software. It supports instrumentation that conforms to SNMP, DMI, and CIM industry standards.

Dell OpenManage Client instrumentation, which is based on DMI and CIM, is available for your computer. For information on IT Assistant, see the Dell OpenManage IT Assistant User's Guide available on the Dell Support website at support.dell.com.

Dell OpenManage Client Instrumentation

Dell OpenManage Client Instrumentation is software that enables remote management programs such as IT Assistant to do the following:

• Access information about your computer, such as how many processors it has and what operating system it is running
  
  
• Monitor the status of your computer, such as listening for thermal alerts from temperature probes or hard-drive failure alerts from storage devices
  
  
• Change the state of your computer, such as updating its BIOS or shutting it down remotely
  
  

A managed system has Dell OpenManage Client Instrumentation set up on a network that uses IT Assistant. For information about Dell OpenManage Client Instrumentation, see the Dell OpenManage Client Instrumentation User's Guide, which is available on the Dell Support website at support.dell.com.

Security

Chassis Intrusion Detection

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

This feature detects that the chassis was opened and alerts the user. To change the Chassis Intrusion setting:

1. Enter system setup.
   
   
2. Press the down-arrow keys to move to the System Security option.
   
   
3. Press <Enter> to access the System Security option's pop-up menu.
   
   
4. Press the down-arrow key to move to the Chassis Intrusion setting.
   
   
5. Press the spacebar to select an option setting.
   
   
6. Exit system setup.
   
   

Option Settings

• Enabled — If the computer cover is opened, the setting changes to Detected, and the following alert message displays during the boot routine at the next computer start-up:
  
  

Alert! Cover was previously removed.

To reset the Detected setting, enter system setup. In the Chassis Intrusion option, press the left- or right-arrow key to select Reset, and then choose Enabled, Enabled-Silent, or Disabled.

• Enabled-Silent (default) — If the computer cover is opened, the setting changes to Detected. No alert message appears during the boot sequence at the next computer start-up.
  
  
• Disabled — No intrusion monitoring occurs and no messages appear.
  
  

Padlock Ring and Security Cable Slot

Use one of the following methods to secure your computer:

• Use a padlock alone or a padlock and looped security cable with the padlock ring located on the back of your computer.
  
  

A padlock alone prevents the computer from being opened.

A security cable looped around a stationary object is used in conjunction with a padlock to prevent unauthorized movement of the computer.

• Attach a commercially available antitheft device to the security cable slot on the back of the computer.
  
  

NOTE: Before you purchase an antitheft device, make sure that it works with the security cable slot on your computer.

Antitheft devices usually include a segment of metal-stranded cable with an attached locking device and key. Dell recommends that you use a Kensington lock. The documentation that comes with the device contains instructions for installing it.

Password Protection

NOTICE: Although passwords provide security for the data on your computer, they are not foolproof. If your data requires more security, it is your responsibility to obtain and use additional forms of protection, such as data encryption programs.

System Password

NOTICE: If you leave your computer running and unattended without having a system password assigned, or if you leave your computer unlocked so that someone can disable the password by changing a jumper setting, anyone can access the data stored on your hard drive.

Option Settings

You cannot change or enter a new system password if either of the following two options is displayed:

• Enabled — A system password is assigned.
  
  
• Disabled — The system password is disabled by a jumper setting on the system board.
  
  

You can only assign a system password when the following option is displayed:

• Not Enabled — No system password is assigned and the password jumper on the system board is in the enabled position (the default).
  
  

Assigning a System Password

To escape from the field without assigning a system password, press <Tab> or the <Shift><Tab> key combination to move to another field, or press <Esc> at any time before you complete step 5.

1. Enter system setup and verify that Password Status is set to Unlocked.
   
   
2. Highlight System Password, and then press the left- or right-arrow key.
   
   

The option heading changes to Enter Password, followed by an empty 32-character field in square brackets.

3. Type your new system password.
   
   

You can use up to 32 characters. To erase a character when entering your password, press <Backspace> or the left-arrow key. The password is not case sensitive.

Certain key combinations are not valid. If you enter one of these combinations, the speaker emits a beep.

As you press each character key (or the spacebar for a blank space), a placeholder appears in the field.

4. Press <Enter>.
   
   

If the new system password is less than 32 characters, the whole field fills with placeholders. Then the option heading changes to Verify Password, followed by another empty 32-character field in square brackets.

5. To confirm your password, type it a second time and press <Enter>.
   
   

The password setting changes to Enabled.

6. Exit system setup.
   
   

Password protection takes effect when you restart the computer.

Typing Your System Password

When you start or restart your computer, one of the following prompts appears on the screen.

If Password Status is set to Unlocked:

Type in the password and
- press <ENTER> to leave password security enabled.
- press <CTRL><ENTER> to disable password security.
Enter password:

If Password Status is set to Locked:

Type the password and press <Enter>.

If you have assigned a setup password, the computer accepts your setup password as an alternate system password.

If you type a wrong or incomplete system password, the following message appears on the screen:

** Incorrect password. **

If you again type an incorrect or incomplete system password, the same message appears on the screen. The third and subsequent times you type an incorrect or incomplete system password, the computer displays the following message:

** Incorrect password. **
Number of unsuccessful password attempts: 3
System halted! Must power down.

Even after your computer is turned off and on, the previous message is displayed each time you type an incorrect or incomplete system password.

NOTE: You can use Password Status in conjunction with System Password and Setup Password to further protect your computer from unauthorized changes.

Deleting or Changing an Existing System Password

1. Enter system setup and verify that Password Status is set to Unlocked.
   
   
2. Restart your computer.
   
   
3. When prompted, type the system password.
   
   
4. Press <Ctrl><Enter> to disable the existing system password.
   
   
5. Confirm that Not Enabled is displayed for the System Password option.
   
   

If Not Enabled is displayed, the system password is deleted. If Not Enabled is not displayed, press <Alt><b> to restart the computer, and then repeat step 3 through step 5.

To assign a new password, follow the procedure in "Assigning a System Password."

6. Exit system setup.
   
   

Setup Password

Option Settings

• Enabled — Does not allow assignment of setup passwords; users must enter a setup password to make changes to system setup
  
  
• Not Enabled — Allows assignment of setup passwords; password feature is enabled but no password is assigned
  
  

Assigning a Setup Password

The setup password can be the same as the system password.

NOTE: If the two passwords are different, the setup password can be used as an alternate system password. However, the system password cannot be used in place of the setup password.

1. Enter system setup and verify that Setup Password is set to Not Enabled.
   
   
2. Highlight Setup Password and press the left- or right-arrow key.
   
   

The computer prompts you to type and verify the password. If a character is not permitted, the computer emits a beep.

3. Type and then verify the password.
   
   

After you verify the password, the Setup Password setting changes to Enabled. The next time you enter system setup, the computer prompts you for the setup password.

4. Exit system setup.
   
   

A change to Setup Password becomes effective immediately (no need to restart the computer).

Operating Your Computer With a Setup Password Enabled

When you enter system setup, the Setup Password option is highlighted, prompting you to type the password.

If you do not type the correct password, the computer lets you view, but not modify, system setup options.

NOTE: You can use Password Status in conjunction with Setup Password to protect the system password from unauthorized changes.

Deleting or Changing an Existing Setup Password

To change an existing setup password, you must know the setup password.

1. Enter system setup.
   
   
2. Type the setup password at the prompt.
   
   
3. Highlight Setup Password and press the left- or right-arrow key to delete the existing setup password.
   
   

The setting changes to Not Enabled.

To assign a new setup password, perform the steps in "Assigning a System Password."

4. Exit system setup.
   
   

Disabling a Forgotten Password and Setting a New Password

NOTICE: This process erases both the system and setup passwords.

CAUTION: Before you begin any of the procedures in this section, follow the steps in "Safety Instructions."

1. Open the computer cover.
   
   

NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.

2. Remove the jumper plug labeled "PSWD" from the jumper.
   
   

See "Jumper Settings" to locate the password jumper.

3. Close the computer cover.
   
   
4. Reconnect your computer and devices to electrical outlets and turn them on.
   
   

This disables the existing password(s).

5. Enter system setup and verify that Setup Password is set to Disabled.
   
   
6. Exit system setup.
   
   

CAUTION: Before you begin any of the procedures in this section, follow the steps in "Safety Instructions."

7. Open the computer cover.
   
   

NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.

8. Replace the PSWD jumper plug.
   
   
9. Close the computer cover and reconnect the computer and devices to electrical outlets and turn them on.
   
   

This re-enables the password feature. When you enter system setup, both password options appear as Not Enabled—the password feature is enabled but no password is assigned.

10. Assign a new system and/or setup password.
    
    

System Setup

Use system setup settings as follows:

• To set user-selectable options such as date and time or system password
  
  
• To read the current amount of memory or set the type of hard drive installed
  
  

Print the system setup screens (by pressing <Print Screen>) or record the information for future reference.

Before you use system setup, you must know the kind of floppy drive(s) and hard drive(s) installed in your computer. To confirm this information, see the Manufacturing Test Report that came with your computer, or find this information in the online Dell Accessories folder.

Entering System Setup

1. Turn on or restart your computer.
   
   
2. When Press <F2> to Enter Setup appears in the upper-right corner of the screen, press <F2> immediately.
   
   

If you wait too long and the Microsoft® Windows® logo appears, continue to wait until you see the Windows desktop. Then shut down your computer through the Start menu and try again.

NOTE: To ensure an orderly computer shutdown, see the documentation that came with your operating system.

System Setup Screens

System setup screens display current configuration information for your computer. Information on the screen is organized into four areas:

• Title — The box at the top of all screens that lists the computer name.
  
  
• Computer data — Two boxes below the title box that display your computer processor, L2 cache, service tag, and the version number of the BIOS.
  
  
• Options — A scrollable box listing options that define the configuration of your computer, including installed hardware, power conservation, and security features.
  
  

Fields to the right of the option titles contain settings or values. The fields that you can change appear bright on the screen. The fields that you cannot change (because they are set by the computer) appear less bright. When <Enter> appears to the right of an option title, press <Enter> to access a popup menu of additional options.

• Key functions — A line of boxes across the bottom of all screens that lists keys and their functions within system setup.
  
  

System Setup Navigation Keys

Keys	Action
	Moves to the next field.
	Moves to the previous field.
	Cycles through the options in a field. In many fields, you can also type the appropriate value.
	Scrolls through help information.
	Enters the selected field's pop up options menu.
spacebar or	In the selected field's pop up options menu, cycles through the options in a field.
	Exits system setup without restarting the computer and returns the computer to the boot routine.
	Exits system setup and restarts the computer, implementing any changes you have made.
	Resets the selected option to the default.
	Restores all system settings to the default configuration.

Boot Sequence

This feature allows users to change the sequence of devices from which the computer boots.

Option Settings

• Normal — (Available only for the current boot process) The computer attempts to boot from the sequence of devices specified in system setup.
  
  
• Diskette Drive — The computer attempts to boot from the floppy drive. If the floppy disk in the drive is not bootable, or if no floppy disk is in the drive, the computer generates an error message.
  
  
• Hard Drive — The computer attempts to boot from the primary hard drive. If no operating system is on the drive, the computer generates an error message.
  
  
• CD Drive — The computer attempts to boot from the CD drive. If no CD is in the drive, or if the CD has no operating system, the computer generates an error message.
  
  
• PXE — (Available only for the future boot process) As the computer boots, it prompts the user to press <Ctrl><Alt><b>. Pressing this key combination causes a menu to display that allows you to select a method for booting from a network server. If a boot routine is not available from the network server, the system attempts to boot from the next device in the boot sequence list.
  
  
• USB Flash Device — Insert the memory device into a USB port and restart the computer. When F12 = Boot Menu appears in the upper-right corner of the screen, press <F12>. The BIOS detects the device and adds the USB flash option to the boot menu.
  
  

NOTE: To boot to a USB device, the device must be bootable. To make sure your device is bootable, check the device documentation.

Changing Boot Sequence for the Current Boot

You can use this feature, for example, to tell the computer to boot from the CD drive so you can run the Dell Diagnostics, but specify that the computer boots from the hard drive when the diagnostic tests are complete.

If you wait too long and the Windows logo appears, continue to wait until you see the Windows desktop. Then shut down your computer through the Start menu and try again.

1. Turn on or restart your computer.
   
   
2. When F2 = Setup, F12 = Boot Menu appears in the upper-right corner of the screen, press <F12>.
   
   

If you wait too long and the Windows logo appears, continue to wait until you see the Windows desktop. Then shut down your computer through the Start menu and try again.

NOTE: To ensure an orderly computer shutdown, consult the documentation that came with your operating system.

The Boot Device Menu appears, listing all available boot devices. Each device has a number next to it. At the bottom of the menu, enter the number of the device that is to be used for the current boot only.

Changing Boot Sequence for Future Boots

1. Enter system setup.
   
   
2. Use the arrow keys to highlight the Boot Sequence menu option and press <Enter> to access the pop-up menu.
   
   

NOTE: Write down your current boot sequence in case you want to restore it.

3. Press the up- and down-arrow keys to move through the list of devices.
   
   
4. Press the spacebar to enable or disable a device (enabled devices have a checkmark).
   
   
5. Press the plus (+) or minus (–) keys to move a selected device up or down the list.
   
   

System Setup Options

NOTE: Depending on your computer and installed devices, all of the items listed in the section may or may not appear.

Drive Configuration Diskette Drive A — Identifies the floppy drive attached to the DSKT connector on the system board. With the standard cabling configuration, Diskette Drive A (the boot floppy drive) is the 3.5-inch floppy drive installed in the top externally accessible drive bay. The two options are 3.5 Inch, 1.44 MB and Not Installed. Tape drives are not reflected in the Diskette Drive A option. For example, if a single floppy drive and a tape drive are attached to the floppy drive interface cable, set Diskette Drive A to 3.5 Inch, 1.44 MB. SATA Primary Drive — Identifies the serial ATA hard drive attached to the SATA1 connector on the system board. SATA Secondary Drive — Identifies the serial ATA hard drive attached to the SATA2 connector on the system board (not available on the small form-factor or small desktop computers). Primary Drive 0 — Identifies the IDE hard drive attached to the IDE1 connector on the system board. Primary Drive 1 — Identifies the IDE device attached to the IDE2 connector on the system board. Secondary Drive 0 — Identifies the device that is cabled with the drive on the IDE1 data cable. Secondary Drive 1 — Identifies the device that is cabled with the device on the IDE2 data cable. IDE Drive UDMA — Sets the mode for all installed hard drives. NOTE: You must have an IDE device connected to the primary IDE interface if you have an IDE device connected to the secondary IDE interface. If You Have a Problem — See "Hard drive problems."

Hard-Disk Drive Sequence — If you insert an boot device and reboot, this option will appear in your system setup menu. System BIOS boot device USB Device NOTE: To boot from a USB memory device, select the USB device and move it to make it the first device in the list.

Boot Sequence — See "Boot Sequence" for more information on this option.

Memory Information — Indicates amount of installed memory, computer memory speed, amount of video memory, size of the display cache, and channel mode (dual or single).

CPU Information CPU Speed — The processor speed at which the computer 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. A change to this option takes effect immediately (no restart is necessary). To toggle between the rated processor speed and the compatibility speed while the computer is running in real mode, press <Ctrl><Alt><\>. (For keyboards that do not use American English, press <Ctrl><Alt><#>.) Bus Speed — The speed of the microprocessor's system bus. Processor ID — The manufacturer's identification code(s) for the installed microprocessor. Clock Speed — The core speed at which the microprocessor(s) operates. Cache Size — The size of the microprocessor's L2 cache. Hyper-Threading — Enables or disables Hyper-Threading technology for operating systems that support Hyper-Threading. The default setting is Disabled. NOTE: If your computer has a processor capable of supporting hyper-threading, the Hyper-Threading option will be the first selection in the list.

Integrated Devices (Legacy Select Options) — Configures the following devices integrated with the system board: Sound — The settings are On (default) or Off. Network Interface Controller — The settings are On (default), Off, or On w/ PXE. Mouse Port — The settings are On or Off. USB Emulation — The settings are On (default) and Off. USB Controller — The settings are On (default) or Off. PCI Slots — The settings are Enabled (default) and Disabled. Serial Port 1 and Serial Port 2 (Serial Port 2 will appear as an option if you have a serial port card installed)— The settings are Off and Auto (default). Auto automatically configures a connector to a particular designation (COM1 or COM3 for Serial Port 1; COM2 or COM4 for Serial Port 2). If you set a serial connector to Auto and add a card containing a connector configured to the same designation, the computer automatically remaps the integrated port to the next available connector designation that shares the same IRQ setting as follows: COM1 (I/O address 3F8h), which shares IRQ4 with COM3, is remapped to COM3 (I/O address 3E8h). COM2 (I/O address 2F8h), which shares IRQ3 with COM4, is remapped to COM4 (I/O address 2E8h). NOTE: When two COM connectors share an IRQ setting, you can use either connector as necessary, but you may not be able to use them both at the same time. If you are running the Windows 95 or IBM® OS/2® operating system, you cannot use both serial connectors at the same time. If the second connector (COM3 or COM4) is also in use, the integrated connector is turned off. Parallel Port — The settings are Mode, I/O Address, and DMA Channel. Mode settings are PS/2 (default), EPP, ECP, AT, or Off. Set the Mode option according to the type of device connected to the parallel connector. To determine the correct mode to use, see the documentation that came with the device. I/O Address settings are 378h (default), 278h, or 3BCh. The settings are not available when Mode is set to Off. NOTE: You cannot set the parallel connector to 3BCh if Mode is set to EPP. DMA Channel appears only when Mode is set to ECP. Settings are DMA 1, DMA 3, or Off. IDE Drive Interface —The settings are Off and Auto (default). Auto turns off the IDE interface when necessary to accommodate a controller card installed in an expansion slot. Diskette Interface — The settings are Auto (default), Read Only, and Off. Auto turns off the integrated floppy drive controller when necessary to accommodate a controller card installed in an expansion slot. Read Only prevents the computer's integrated floppy drive controller from writing to floppy drives and activates Auto. PC Speaker — The settings are On (default) and Off. Primary Video Controller — The settings are Auto (default) and Onboard. Auto (default) — If only an AGP card is installed, the computer uses the AGP card; if only a PCI card is installed, the computer uses the PCI card; if both AGP and PCI cards are installed, the computer uses both cards unless the computer is using Windows NT, in which case the computer uses the AGP card. Onboard — The computer uses the AGP card. Onboard Video Buffer — The settings are 1 MB (default) and 8 MB.

Power Management (see "Power Management" for more information) Suspend Mode — The options are S1 or S3. AC Power Recovery — Determines what happens when AC power is restored to the computer. Off (default) — The computer remains off when AC power is restored. On — The computer starts when AC power is restored. Last — The computer returns to the AC power state existing at the time that AC power was lost Low Power Mode — The settings are Enabled and Disabled.

System Security — See "Security" for more information.

Keyboard NumLock — The settings are On and Off (does not apply to 84-key keyboards). On (default) — activates the rightmost bank of keys so they provide the mathematical and numeric functions shown at the top of each key. Off — activates the rightmost bank of keys so they provide cursor-control functions shown by the label on the bottom of each key.

Auto Power On — Sets time and days of week to automatically turn on the computer. Choices are every day or every Monday through Friday. Time is kept in a 24-hour format (hours:minutes). Change the start-up time by pressing the right- or left-arrow keys to increase or decrease the numbers or type numbers in both the date and time fields. Disabled is the default. This feature does not work if you turn off your computer using a power strip or surge protector.

Fastboot On (default) — Your computer boots in 10 seconds or less, skipping certain configurations and tests. Off — Your computer does not skip certain configurations and tests during the boot process.

Hard Drive Acoustics Mode The acoustics mode field may contain the following options: Quiet (default) — The hard drive operates in its quietest setting. Performance — The hard drive operates at its maximum speed. NOTE: Switching to Performance mode may cause the drive to be noisier, but its performance is not affected. Bypass — Your computer will not test or change the current acoustics mode setting. Suggested — The hard drive will operate at the level suggested by the hard-drive manufacturer. NOTE: Changing the acoustics setting does not alter your hard-drive image.

Asset Tag — Displays the customer-programmable asset tag number for the computer if an asset tag number is assigned.

Booting to a USB Device

NOTE: To boot to a USB device, the device must be bootable. To ensure that your device is bootable, check the device documentation.

Memory Key

1. Insert the memory key into a USB port and restart the computer.
   
   
2. When F12 = Boot Menu appears in the upper-right corner of the screen, press <F12>.
   
   

The BIOS detects the device and adds the USB flash option to the boot menu.

3. From the boot menu, select the number that appears next to the USB device.

The computer boots to the USB device.

Floppy Drive

1. Disable the integrated floppy controller by entering system setup, going to integrated devices, and setting the diskette interface to Off.
   
   
2. Connect the USB floppy drive, insert a bootable diskette, and re-boot the system.
   
   

Jumper Settings

NOTICE: Ensure that your computer is turned off and unplugged before you change the jumper settings. Otherwise, damage to your computer or unpredictable results can occur.

NOTICE: Before touching anything inside your computer, ground yourself by touching an unpainted metal surface, such as the metal at the back of the computer. While you work, periodically touch an unpainted metal surface to dissipate any static electricity that could harm internal components.

To change a jumper setting, pull the plug off its pin(s) and carefully fit it down onto the pin(s) indicated.

Jumper	Setting	Description
PSWD	(default)	Password features are enabled. Password features are disabled.
RTCRST		Real-time clock reset
jumpered   unjumpered

Power Button

NOTICE: To turn off your computer, perform an orderly computer shutdown when possible.

You can use the ACPI feature to configure the function of the Microsoft Windows 2000 and Windows XP operating systems.

Power Button Functions With ACPI Enabled

Action	Results
	Computer Turned On and ACPI Enabled	Computer in Standby Mode	Computer Turned Off
Press power button	Computer goes into standby mode or turns off (depending on the operating system setup)	Computer turns on	Boots and computer turns on
Hold power button for 6 seconds*	Computer turns off	Computer turns off	Boots and computer turns on
NOTE: *Pressing or holding the power button for 6 seconds will cause the computer to shut down, which may result in data loss. Use the power button to shut down the computer only if the operating system is not responding.

Power Button Functions With ACPI Disabled

Action	Results
	Computer Turned On and ACPI Disabled	Computer in Suspend Mode	Computer Turned Off
Press power button	Computer turns off immediately	Computer turns off immediately	Boots and computer turns on
Hold power button for 6 seconds*	Computer turns off	Computer turns off	Boots and computer turns on
NOTE: *Pressing or holding the power button for 6 seconds will cause the computer to shut down, which may result in data loss. Use the power button to shut down the computer only if the operating system is not responding.

Power Button Functions for Windows NT

Action	Results
	Computer Turned On	Computer Turned Off
Press power button	Computer shuts down	Boots and computer turns on
Hold power button for 6 seconds*	Computer turns off	Boots and computer turns on
NOTE: *Pressing or holding the power button for 6 seconds will cause the computer to shut down, which may result in data loss. Use the power button to shut down the computer only if the operating system is not responding.

Hyper-Threading

Hyper-Threading is an Intel® technology that can enhance overall computer performance by allowing one physical microprocessor to function as two logical microprocessors, capable of performing certain tasks simultaneously. It is recommended that you use the Microsoft® Windows® XP SP1 or later operating system because Windows XP is optimized to take advantage of Hyper-Threading technology. While many programs can benefit from Hyper-Threading, some programs have not been optimized for Hyper-Threading and may require an update from the software manufacturer. Contact the software manufacturer for updates and information about using Hyper-Threading with your software.

To determine if your computer is using Hyper-Threading technology:

1. Click the Start button, right-click My Computer, and then click Properties.
   
   
2. Click Hardware and click Device Manager.
   
   
3. In the Device Manager window, click the plus (+) sign next to the processor type. If Hyper-Threading is enabled, the processor is listed twice.
   
   

You can enable or disable Hyper-Threading through system setup.

Power Management

Your computer can be set to use less power when you are not working. You control the power usage through the operating system installed on your computer and certain option settings in system setup. These periods of reduced power are called "sleep states":

• Standby. In this sleep state, power is reduced or turned off for most components, including the cooling fans. However, system memory remains active.
  
  

This state is not supported by Windows NT 4.0.

NOTE: All components installed in the computer must support this feature and have the appropriate drivers loaded to enter standby. For more information, see the manufacturer's documentation for each component.

• Hibernate. This sleep state reduces power consumption to a minimum by writing all data in system memory to a hard drive and then removing system power. Waking up from this state restarts the computer, and the memory contents are restored. Operation then resumes where the computer left off when it entered the hibernation state.
  
  

This state is not supported by Windows NT 4.0.

NOTE: All components installed in the computer must support this feature and have the appropriate drivers loaded to enter hibernation. For more information, see the manufacturer's documentation for each component.

• Shutdown. This sleep state removes all power from the computer except a small auxiliary amount. As long as the computer remains connected to an electrical outlet, it can be automatically or remotely started. For example, the Auto Power On option in system setup allows the computer to automatically start at a specified time. Also, your network administrator can remotely start your computer using a power management event such as Remote Wake Up.
  
  

The following table lists the sleep states and the methods you can use to wake the computer from each state.

Sleep State	Wake-Up Methods (Windows 2000 and XP)
Standby	Press the power button Auto power on Move or click the mouse Type on the keyboard USB device activity Power management event
Hibernate	Press the power button Auto power on Power management event
Shutdown	Press the power button Auto power on Power management event

NOTE: For more information on power management, see your operating system documentation.

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