Dell OptiPlex GX270 Manuel d'utilisateur télécharger pdf (Page 17)

l 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:

l Sound — The settings are On (default) or Off.

l Network Interface Controller — The settings are On (default), Off, or On w/ PXE.

l Mouse Port — The settings are On or Off.

l USB Emulation — The settings are On (default) and Off.

l USB Controller — The settings are On (default) or Off.

l PCI Slots — The settings are Enabled (default) and Disabled.

l 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:

l COM1 (I/O address 3F8h), which shares IRQ4 with COM3, is remapped to COM3 (I/O address 3E8h).

l 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.

l 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.

l 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.

l 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.

l PC Speaker — The settings are On (default) and Off.

l 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.

l Onboard Video Buffer — The settings are 1 MB (default) and 8 MB.

Power Management (see "Power Management" for more information)

l Suspend Mode — The options are S1 or S3.

l 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

l 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).

l On (default) — activates the rightmost bank of keys so they provide the mathematical and numeric functions shown at the top of each

key.

l 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

l On (default) — Your computer boots in 10 seconds or less, skipping certain configurations and tests.

l 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:

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Dell OptiPlex GX270 Manuel d'utilisateur Page 17

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