Dell XPS 720 H2C Bedienungsanleitung

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Dell™XPS™720H2COwner'sManual

IfyoupurchasedaDell™nSeriescomputer,anyreferencesinthisdocumenttoMicrosoft®Windows®operating systems are not applicable.

Information in this document is subject to change without notice.

©2007DellInc.Allrightsreserved.

Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden.

Trademarks used in this text: Dell, the DELL logo, XPS, H2C, Inspiron, Dell Precision, Dimension, OptiPlex, Latitude, PowerEdge, PowerVault, PowerApp, TravelLite, Strike Zone, and Dell

OpenManage are trademarks of Dell Inc.; Intel, Pentium,Celeron, and Intel Core 2 Extreme are either trademarks or registered trademarks of Intel Corporation; Microsoft, Windows,

Windows Vista, and the Windows Vista Start button are either trademarks or registered trademarks of Microsoft Corporation in the United States and/or other countries. Bluetooth is a

registered trademark owned by Bluetooth SIG, Inc. and is used by Dell under license.

Other trademarks and trade names may be used in this document to refer to either the entities claiming the marks and names or their products. Dell Inc. disclaims any

proprietary interest in trademarks and trade names other than its own.

Model DCDO

April 2007 P/N KP688 Rev. A00

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

Finding Information

Setting Up and Using Your Computer

Optimizing for Greater Performance

Dell™QuickSet

Troubleshooting

Removing and Installing Parts

Appendix

Glossary

NOTE: A NOTE indicates important information that helps you make better use of your computer.

NOTICE: A NOTICE indicates either potential damage to hardware or loss of data and tells you how to avoid the problem.

CAUTION: A CAUTION indicates a potential for property damage, personal injury, or death.

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Appendix

Dell™XPS™720Owner'sManual

Specifications

System Setup

Clearing Forgotten Passwords

Clearing CMOS Settings

Cleaning Your Computer

FCC Notices (U.S. Only)

Contacting Dell

Specifications



Processor

Processor type

Intel®Core™2Duo(dual-core processor)

Intel®Core™2Extreme(dual-core processor)

Intel®Core™2Extreme(quad-core processor)

Cache

at least 1 MB



Memory

Type

800, and 667-MHz DDR2 unbuffered SDRAM; SLI

memory

Memory connectors

four

Memory capacities

512MB,1GB,or2GBnon-ECC

Minimum memory

1 GB

Maximum memory

8 GB



NOTE: See Addressing Memory Configurations to

verify the amount of memory available to the

operating system.



Computer Information

Chipset

Northbridge

Southbridge

NVIDIA nForce 680i SLI

C55XE

MCP55PXE

DMA channels

five

Interrupt levels

BIOS chip (NVRAM)

4 Mb

NIC

integrated network interface capable of 10/100/1000

communication



Video

Type

PCI Express



Audio

Type

HDA 7.1 channel



Expansion Bus

Bus type

PCI Express x1 and x16

PCI 32-bit

PCI (SLOT3, SLOT5, SLOT6)



Connector

three

Connector size

124 pins

Connector data width (maximum)

32 bits

Bus speed

33 MHz

PCI Express (SLOT1)



NOTE: If a graphics card is installed in each of the

PCI Express x16 card slots in the dual-graphics

configuration, the PCI Express x1 card slot is not

accessible for use.

Connector

one x1

Connector size

36 pins

Connector data width (maximum)

1 PCI Express lane

Bus throughput

x1 slot bidirectional speed —2.5 Gbps

PCI Express (SLOT7)



Connector

one x16

Connector size

164 pins

Connector data width (maximum)

8 PCI Express lanes

Bus throughput

x16 slot bidirectional speed —20 Gbps

PCI Express (SLOT2, SLOT4)



Connector

two x16

Connector size

164 pins

Connector data width (maximum)

16 PCI Express lanes

Bus throughput

x16 slot bidirectional speed —40 Gbps



Drives

Available devices

Serial ATA drive, floppy drive, memory devices,

Blu-ray™Discdrive,DVDdrive,DVD-RW drive,

CD-RW/DVD combo drive, and media card reader

Externally accessible:

two 3.5-inch drive bays

four 5.25-inch drive bays

Internally accessible:

four 3.5-inch drive bays for hard drives



Connectors

External connectors:

IEEE 1394

front and back-panel 6-pin serial connectors

Network adapter

RJ45 connector

PS/2 (keyboard and mouse)

two 6-pin mini-DIN

USB

two front-panel, six back-panel, and two internal

USB2.0–compliant connectors

System board connectors:

IDE drive

one 40-pin connector

Serial ATA

six 7-pin connectors

Floppy drive

34-pin connector

Fan

three 5-pin connectors

Liquid cooling (optional)

one 12-pin connector

PCI

three 124-pin connectors

PCI Express x1

36-pin connector

PCI Express x16 (SLOT7); card length up to

17.8 cm (7 inches only)

164-pin connector

PCI Express x16

three 164-pin connectors



ControlsandLights

Power control

push button

Power light

green light —Blinking green in sleep state; solid

green for power-on state.

amber light —Blinking amber indicates a problem

with an installed device; solid amber indicates an

internal power problem.

Hard-drive access light

green

Network activity light (front panel)

solid green indicates network connection

Link integrity light (on integrated network adapter)

green light —A good connection exists between a

10-Mbps network and the computer.

orange light —A good connection exists between a

100-Mbps network and the computer.

yellow light —A good connection exists between a 1-

GB (1000-Mbps) network and the computer.

off (no light) —The computer is not detecting a

physical connection to the network.

Activity light (on integrated network adapter)

yellow blinking light when there is activity on the

network; if there is not any network activity, the light

will be off

Diagnostic lights

four lights on the front panel (see Diagnostic Lights)

Standby power light

AUXPWR on the system board

Front panel LEDs

eight multi-colored LEDs provide illumination for the

front of the computer



NOTE: The color of the front panel LEDs can be

adjusted in system setup (see System Setup).

Back panel LEDs

two multi-colored lights provide illumination for the

I/O panel on the back of the computer



NOTE: The color of the back panel LEDs can be

adjusted in system setup (see System Setup).



Power

DC power supply:



CAUTION: To reduce the risk of fire, electric shock,

or injury, do not overload an electrical outlet,

power strip, or convenience receptacle. The total

ampere rating of all products plugged into an

electrical outlet, power strip, or other receptacle

should not exceed 80 percent of the branch circuit

rating.

Wattage

750 W or

1 KW

Voltage (see the safety instructions located in

the Product Information Guide)

auto-sensing power supply—90 V to 265 V at 50/60

Backup battery

3-V CR2032 lithium coin cell



Physical

Height



Without stand

55.5 cm (21.9 inches)

With stand

57.2 cm (22.5 inches)

Width



Without stand

21.9 cm (8.6 inches)

With stand

35.6 cm (14.0 inches)

Depth

59.4 cm (23.4 inches)

Weight



Typical configuration

21.7 kg (47.8 lb)

Maximum configuration

25.6 kg (56.4 lb)



Environmental

Temperature:

Operating

10°to35°C(50°to95°F)

Storage

–40°to65°C(–40°to149°F)

System Setup



Overview

Use system setup as follows:

lTo change the system configuration information after you add, change, or remove any hardware in your computer

lTo set or change a user-selectable option such as the user password

lTo read the current amount of memory or set the type of hard drive installed

Before you use system setup, it is recommended that you write down the system setup screen information for future reference.



Entering System Setup



1. Turn on (or restart) your computer.



2. When the DELL logo appears, press <F2> immediately.

If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft®Windows®desktop, then shut down your

computer and try again.



System Setup Screens

The system setup screen displays current or changeable configuration information for your computer. Information on the screen is divided into three areas: the

options list, the active options field, and key functions.



System Setup Options

Relative humidity

20% to 80% (noncondensing)

Maximum vibration:

Operating

0.25 G at 3 to 200 Hz at 0.5 octave/min

Storage

0.5 G at 3 to 200 Hz at 1 octave/min

Maximum shock:

Operating

bottom half-sine pulse with a change in velocity of 20

inches/sec (50.8 cm/sec)

Storage

27-G faired square wave with a velocity change of

200 inches/sec (508 cm/sec)

Altitude:

Operating

–15.2 to 3048 m (–50 to 10,000 ft)

Storage

–15.2 to 10,668 m (–50 to 35,000 ft)

NOTICE: Do not change the settings in system setup unless you are an expert computer user. Certain changes can cause your computer to work

incorrectly.

NOTE: Keyboard failure may result when a key on the keyboard is held down for extended periods of time. To avoid possible keyboard failure,

press and release <F2> in even intervals until the system setup screen appears.

Options List —This field appears on the left side of

the system setup window. The field is a scrollable list

containing features that define the configuration of

your computer, including installed hardware, power

conservation, and security features.

Scroll up and down the list with the up-and down-

arrow keys. As an option is highlighted, the Options

Field displays more information about that option

and the option's current and available settings.

Options Field —This field appears on the right side

of the system setup window and contains information

about each option listed in the Options List. In this

field you can view information about your computer

and make changes to your current settings.

Press the left-and right-arrow keys to highlight an

option. Press <Enter> to make that selection active

and return to the Options List.



NOTE: Not all settings listed in the Options Field are

changeable.

Key Functions —This field appears below the

Options Field and lists keys and their functions

within the active system setup field.

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



System

System Info

Lists system information, such as the computer name,

the BIOS version number and date, the system

service tag, express service code and asset tag, and

other system-specific information.

Processor Info

Identifies the processor type, clock speed, bus

speed, L2 cache, L3 cache, ID, and whether the

processor is multiple core capable, supports Hyper-

Threading and supports 64-bit technology.

Memory Info

Identifies the memory type, speed, and channel

mode (dual or single) by DIMM slot location.

PCI Info

Indicates the expansion card type by slot location.

Date/Time

Displays current date and time settings.

Boot Sequence

The computer attempts to boot from the sequence of

devices specified in this list.



NOTE: If you insert a boot device and restart the

computer, this option appears in the system setup

menu. To boot from a USB memory device, for

example, select the USB device and move it so that it

becomes the first device in the boot sequence.



Drives

Diskette Drive

(Internal default)

Enables and disables the floppy drive attached to the

DSKT connector on the system board and sets read

permissions for the drive.

lOff —All floppy drives are disabled.

lUSB —USB floppy drives are enabled

lInternal —The integrated floppy drive is

enabled.

lRead Only —The integrated floppy drive is

enabled with read-only access.



NOTE: Operating systems with USB support will

recognize USB floppy drives regardless of this setting.

SATA Drives 0 through 5

(On default)

Enables or disables drives attached to the SATA

connectors on the system board.

lOff —A device attached to the interface is not

usable.

lOn —A device attached to the interface is

usable.

lRAID On - A device attached to the interface

is configured for RAID (see About Your RAID

Configuration).

PATA Drives 0 through 1

(On default)

Enables or disables drives attached to the ATA

connectors on the system board, and lists the

controller details.

lOff —A device attached to the interface is not

usable.

lOn —A device attached to the interface is

usable.

SMART Reporting

(Off default)

Determines whether hard-drive errors for internal

drives are reported during system startup.

lOff —Errors are not reported.

lOn —Errors are reported.



Onboard Devices

Integrated NIC

(On default)

Enables or disables the integrated network interface

controller (NIC).

lOff —The integrated NIC is disabled.

lOn —The integrated NIC is enabled.

lOn w/PXE —The integrated NIC is on (with

PXE enabled).



NOTE: PXE is required only if you are booting to an

operating system located on another computer. If a

boot routine is not available from the remote system,

the computer attempts to boot from the next device

listed in the boot sequence.

Integrated Audio

(On default)

Enables or disables the onboard audio controller.

lOff —Integrated audio is disabled.

lOn —Integrated audio is enabled.

USB Controller

(On default)

Enables or disables the internal USB controller.

lOff —The USB controller is disabled.

lOn —The USB controller is enabled.

lNo Boot —The USB controller is enabled;

however, the BIOS will not recognize USB

storage devices.



NOTE: Operating systems with USB support will

recognize USB storage devices regardless of the No

Boot setting.

1394 Controller

(On default)

Enables or disables the integrated IEEE 1394

controller.

lOff —The 1394 controller is disabled.

lOn —The 1394 controller is enabled.

PS/2 Mouse Port

(On default)

Enables or disables the onboard PS/2-compatible

mouse controller.

lOff —The PS/2 legacy mouse port is disabled.

lOn —The PS/2 legacy mouse port is enabled.



LED Control

Front Upper LED



Adjusts the color of the upper front panel LEDs (see

Front and Back View of the Computer).

Front Lower LED



Adjusts the color of the lower front panel LEDs (see

Front and Back View of the Computer).

Rear Panel LED



Adjusts the color of the rear panel LEDs (see Front

and Back View of the Computer).

LED Intensity



Adjusts the intensity for the color of the upper and

lower front panel LEDs and the rear panel LEDs.



Performance

Multiple CPU Core

(On default)

Specifies whether the processor has more than one

core enabled.

lOff —Multiple CPU core technology is

disabled.

lOn —Multiple CPU core technology is enabled.



NOTE: The performance of some applications may

improve with an additional core enabled.

Advanced

Displays processor type and current BIOS settings for

processor clock speed, processor multiplier, front side

bus (FSB) clock, and CPU core voltage. These settings

may have been set by performance tuning

applications or may change depending on settings in

performance applications that you have installed.

For systems with Intel Extreme processors, the

following fields are adjustable through the BIOS:

lProcessor Clock Speed: Adjusts the multiplier

of the processor. For processors that cannot

be overclocked, this field reports the current

settings and cannot be changed.

lPerformance Application Support: Enables

software applications to display and modify key

system parameters to tune system

performance. These applications are not

installed or supported by Dell. The default is

Off.



NOTE: To enable overclocking of other system

components, you first need to enable the

Performance Application Support option in BIOS and

then download an application like NVIDIA nTune

version 5.0 or higher.



NOTE: Pressing <Alt><F> returns your system to the

factory defaults including RAID settings.

SpeedStep

(Off default)

Specifies whether Enhanced Intel SpeedStep®

technology is enabled for all supported processors in

the system.

lOff —Disable Enhanced SpeedStep

technology

lOn —Enable Enhanced SpeedStep technology

Virtualization

(Off default)



Specifies whether a virtual machine monitor (VMM)

can utilize the additional hardware capabilities

provided by Intel Virtualization Technology

lOff —Disable Virtualization Technology

lOn —Enable Virtualization Technology

HDD Acoustic Mode

(Bypass default)

Determines the acoustic mode at which the hard

drive operates.

lBypass —Do nothing (needed for older

drives).

lQuiet —The hard drive operates at a slower,

but quieter speed.

lSuggested —Allow the hard drive

manufacturer to select the mode.

lPerformance —The hard drive operates at a

faster, but possibly noisier speed.



NOTE: Switching to performance mode may cause an

increase in noise produced by the drive, but does not

affect the drive's performance.



NOTE: Changing the acoustics setting does not alter

your hard drive image.



Security



Admin Password

(Not Set default)

Used to prohibit an unauthorized user from changing

any configuration settings in the system setup.

System Password

(Not Set default)

Used to prohibit an unauthorized user from booting

to the operating system.

Password Changes

(Unlocked default)

This option locks the system password field with the

administrator (admin) password.



NOTE: When the system password field is locked,

you can no longer disable password security by

pressing <Ctrl><Enter> when the computer starts.

Execute Disable

(On default)

Enables or disables Execute Disable Memory

Protection technology.

lOff —Execute Disable Memory Protection

technology is disabled.

lOn —Execute Disable Memory Protection

technology is enabled.



Power Management

AC Recovery

Specifies how the computer will behave when AC

(Off default)

power is restored after an AC power loss.

lOff —The system stays off after AC power is

restored.

lOn —The system powers on after AC power is

restored.

lLast —The system returns to the previous

state after AC power is restored.

Auto Power On

(Off default)

Disables or selects when to automatically turn on the

computer.

lOff —Do not use the Auto Power Time.

lEveryday —Turn the computer on every day

at the time set in Auto Power Time.

lWeekdays —Turn the computer on Monday

through Friday at the time set in Auto Power

Time.



NOTE: This feature does not work if you turn off your

computer using a power strip or surge protector.

Auto Power Time

Specifies the time to automatically turn on the

computer.

Change the time to automatically turn on the

computer by pressing the up-or down-arrow key to

increase or decrease the numbers, or type the

numbers in the appropriate time field.



NOTE: This feature does not work if you turn off your

computer using a power strip or surge protector.

Low Power Mode

(Off default)

Specifies how aggressive the system is at conserving

power while in hibernate mode or turned off.

lOff —Add more functionality.

lOn —Conserve more power.

Suspend Mode

(S3 default)

Specifies the power management suspend mode.

lS1 —The computer resumes more quickly from

sleep mode.

lS3 —The computer conserves more power

when not in use (system memory remains

active).



Maintenance

Service Tag

Displays the system service tag.

SERR Message

(On default)

Controls the SERR message mechanism. Some

graphics cards require that the SERR Message

mechanism be disabled.

lOff —Do not use the SERR message

mechanism.

lOn —Use the SERR message mechanism.

Load Defaults

This setting restores the computer's factory-installed

default settings.

lCancel —Do not restore factory-installed

default settings.

lContinue —Restore factory-installed default

settings.

Event Log

Displays the system event log.

lMark all entries —Mark all event log entries

as read (R).

lClear log —Clear all event log entries.



NOTE: Once an event log entry is marked as read (R)

that entry cannot be marked as unread (U).



POST Behavior



Boot Sequence

This feature allows you to change the boot sequence for the bootable devices installed on your computer.



Option Settings

lDiskette Drive —The computer attempts to boot from the floppy drive. If the floppy disk in the drive is not bootable, if no floppy disk is in the drive, or if

there is no floppy drive installed in the computer, the computer attempts to boot from the next bootable device in the boot sequence.

lHard Drive —The computer attempts to boot from the primary hard drive. If no operating system is on the drive, the computer attempts to boot from

the next bootable device in the boot sequence.

l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 attempts to

boot from the next bootable device in the boot sequence.

l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.



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 that you can run the Dell Diagnostics on the Drivers and Utilities media,

but you want the computer to boot from the hard drive when the diagnostic tests are complete. You can also use this feature to restart your computer to a

USB device such as a floppy drive, memory key, or CD-RW drive.



1. If you are booting to a USB device, connect the USB device to a USB connector (see Back View).



2. Turn on (or restart) your computer.



3. When the DELL logo appears, press <F12> immediately.

If you wait too long and the operating system logo appears, continue to wait until you see the Microsoft Windows desktop, then shut down your

computer and try again.



4. At the Boot Device Menu, use the up-and down-arrow keys or press the appropriate number on the keyboard to highlight the device that is to be used

Fastboot

(On default)

Enables or disables the option to speed up the boot

process by skipping some compatibility tests.

lOff —Do not skip any steps in the boot

process.

lOn —Boot quickly.

Numlock Key

(On default)

Enables or disables the numerical and mathematical

features of the rightmost bank of keys on the

keyboard.

lOff —Right keypad keys function as arrows.

lOn —Right keypad keys function as numbers.

POST Hotkeys

(Setup & Boot Menu default)

Specifies the function keys to display on the screen

when the computer starts.

lSetup & Boot Menu —Display both messages

(F2=Setup and F12=Boot Menu).

lSetup —Display the setup message only

(F2=Setup).

lBoot Menu —Display the Quickboot message

only (F12=Boot Menu).

lNone —Neither message is displayed.

Keyboard Errors

(Report default)

Enables or disables keyboard error reporting when

the computer starts.

lReport —Display any keyboard errors.

lDo not report —Do not display any keyboard

errors.

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

NOTE: An error message is generated only after the computer attempts to boot from every device in the boot sequence and no operating system is

found.

NOTE: If you are booting to a USB floppy drive, you must first set the floppy drive to OFF in system setup (see System Setup).

NOTE: Keyboard failure may result when a key on the keyboard is held down for extended periods of time. To avoid possible keyboard failure,

press and release <F12> in even intervals until the Boot Device Menu appears.

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