Dell Dimension 2400 Series Bedienungsanleitung

www.dell.com

support.dell.com

Dell™ PowerEdge™ 2400 Systems

RACK INSTALLATION GUIDE

Notes, Notices, Cautions, and Warnings

Throughout this guide, blocks of text may be accompanied by an icon and printed in

bold type or in italic type. These blocks are notes, notices, cautions, and warnings,

and they are used as follows:

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

your computer system.

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 potentially hazardous situation which, if

not avoided, may result in minor or moderate injury.

WARNING: A WARNING indicates a potentially hazardous situation which,

if not avoided, could result in death or serious bodily injury.

____________________

Information in this document is subject to change without notice.

Reproduction in any manner whatsoever without the written permission of Dell Computer

Corporation is strictly forbidden.

Trademarks used in this text:

Dell

,the

DELL E COM

logo, and

PowerEdge

are trademarks of

Dell Computer Corporation.

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 Computer Corporation disclaims any

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

September 2000 P/N 92MWP Rev. A02

iii

Safety Instructions

Use the following safety guidelines to ensure your own personal safety and to help

protect your server, storage system, or appliance from potential damage.

Notes, Notices, Cautions, and Warnings

Throughout this guide, blocks of text may be accompanied by an icon and printed in

bold type or in italic type. These blocks are notes, notices, cautions, and warnings,

and they are used as follows:

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

your computer system.

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 potentially hazardous situation which, if

not avoided, may result in minor or moderate injury.

WARNING: A WARNING indicates a potentially hazardous situation which,

if not avoided, could result in death or serious bodily injury.

Safety Caution and Warnings

Observe the following caution and warnings while servicing this system:

CAUTION: There is a danger of a new battery exploding if it is incorrectly

installed. Replace the battery only with the same or equivalent type recom-

mended by the manufacturer. Discard used batteries according to the

manufacturer’s instructions.

Additional Safety Precautions

To reduce the riskof bodily injury, electrical shock, fire, and damage to theequipment,

observe the following precautions.

General Precautions

Observe the following general precautions for using and working with your system:

•Observe and follow service markings. Do not service any Dell product except as

explained in your Dell system documentation. Opening or removing covers that

are marked with the triangular symbol with a lightning bolt may expose you to

electrical shock. Components inside these compartments should be serviced

only by a Dell authorized service technician.

•If any of the following conditions occur, unplug the product from the electrical

outlet and replace the part or contact your Dell authorized service provider:

— The power cable, extension cable, or plug is damaged.

— An object has fallen into the product.

— The product has been exposed to water.

— The product has been dropped or damaged.

— The product does not operate correctly when you follow the operating

instructions.

•Keep your system components away from radiators and heat sources. Also, do

not block cooling vents.

•Do not spill food or liquids on your system components, and never operate the

product in a wet environment. If the computer gets wet, see the appropriate

chapter in your troubleshooting guide or contact a Dell-authorized service

provider.

•Do not push any objects into the openings of your system components. Doing so

can cause fire or electric shock by shorting out interior components.

•Use the product only with Dell products or other Dell-approved equipment.

•Allow the product to cool before removing covers or touching internal

components.

•Use the correct external power source. Operate the product only from the type

of power source indicated on the electrical ratings label. If you are not sure of the

type of power source required, consult your Dell service provider or local power

company.

•To help avoid damaging your system components, be sure the voltage selection

switch (if provided) on the power supply is set to match the power available at

your location:

—115 volts (V)/60 hertz (Hz) in most of North and South America and some

Far Eastern countries such as South Korea and Taiwan

—100 V/50 Hz in eastern Japan and 100 V/60 Hz in western Japan

—230 V/50 Hz in most of Europe, the Middle East, and the Far East

Also be sure that your monitor and attached devices are electrically rated to

operate with the power available in your location.

•Use only approved power cable(s). If you have not been provided with a power

cable for your server, storage system, or appliance, or for any AC-powered option

intended for your system, purchase a power cable that is approved for use in your

country. The power cable must be rated for the product and for the voltage and

current marked on the product’s electrical ratings label. The voltage and current

rating of the cable should be greater than the ratings marked on the product.

•To help prevent electric shock, plug the system/components and peripheral

power cables into properly grounded electrical outlets. These cables are

equipped with three-prong plugs to help ensure proper grounding. Do not use

adapter plugs or remove the grounding prong from a cable. If you must use an

extension cable, use a three-wire cable with properly grounded plugs.

•Observe extension cable and power strip ratings. Make sure that the total

ampere rating of all products plugged into the extension cable or power strip

does not exceed 80 percent of the extension cable or power strip ampere ratings

limit.

•To help protect your system/components from sudden, transient increases and

decreases in electrical power, use a surge suppressor, line conditioner, or un-

interruptible power supply (UPS).

•Position system cables and power cables carefully; route system cables and the

power cable and plug so that they cannot be stepped on or tripped over. Be sure

that nothing rests on your system components’cables or power cable.

•Do not modify power cables or plugs. Consult a licensed electrician or your

power company for site modifications. Always follow your local/national wiring

rules.

•To help avoid possible damage to the system board, wait 5 seconds after

turning off the system before removing a component from the system board or

disconnecting a peripheral device from the computer.

•Handle batteries carefully. Do not disassemble, crush, puncture, short external

contacts, dispose of in fire or water, or expose batteries to temperatures higher

than 60 degrees Celsius (140 degrees Fahrenheit). Do not attempt to open or

service batteries; replace batteries only with batteries designated for the product.

•Turn down the volume before using headphones or other audio devices.

Precautions for Servers, Storage Systems, and Appliances

Observe the following additional safety guidelines for your system:

•Unless your installation and/or troubleshooting documentation specifically allows

it, do not remove enclosure covers, attempt to override the safety interlocks, or

access any components inside the system. Depending on your system, installa-

tion and repairs may be done only by individuals who are qualified to service your

computer or storage system equipment and trained to deal with products capa-

ble of producing hazardous energy levels.

•When connecting or disconnecting power to hot-pluggable power supplies, if

offered with your Dell product, observe the following guidelines:

—Install the power supply before connecting the power cable to the power

supply.

—Unplug the power cable before removing the power supply.

—If the system has multiple sources of power, disconnect power from the

system by unplugging

all

power cables from the power supplies.

•Move products with care; ensure that all casters and/or stabilizers are firmly con-

nected to the computer or storage system. Avoid sudden stops and uneven

surfaces.

Precautions for Rack-Mountable Products

Observe the following precautions for rack stability and safety. Also refer to the rack

installation documentation accompanying the system and the rack for specific

warning and/or caution statements and procedures.

Servers, storage systems, and appliances are considered to be components in a rack.

Thus, “component”refers to any server, storage system, or appliance, as well as to

various peripherals or supporting hardware.

WARNING: Installing Dell system components in a Dell rack without the

front and side stabilizers installed could cause the rack to tip over, poten-

tially resulting in bodily injury under certain circumstances. Therefore,

always install the stabilizers before installing components in the rack.

After installing system/components in a rack, never pull more than one

component out of the rack on its slide assemblies at one time. The weight

of more than one extended component could cause the rack to tip over and

injure someone.

NOTE: Dell’s servers, storage systems, and appliances are certified as components

for use in Dell’s rack cabinet using the Dell customer rack kit. The final installation of

Dell systems and rack kits in any other brand of rack cabinet has not been approved by

any safety agencies. Itis the customer’s responsibility to have the final combination of

Dell systems and rack kits for use in other brands of rack cabinets evaluated for suit-

ability by a certified safety agency.

vii

•System rack kits are intended to be installed in a Dell rack by trained service tech-

nicians. If you install the kit in any other rack, be sure that the rack meets the

specifications of a Dell rack.

•Do not move large racks by yourself. Due to the height and weight of the rack,

Dell recommends a minimum of two people to accomplish this task.

•Before working on the rack, make sure that the stabilizers are secure to the rack,

extend to the floor, and that the full weight of the rack rests on the floor. Install

front and side stabilizers on a single rack or front stabilizers for joined multiple

racks before working on the rack.

•Always load the rack from the bottom up, and load the heaviest item in the rack

first.

•Make sure that the rack is level and stable before extending a component from

the rack.

•Use caution when pressing the component rail release latches and sliding a

component into or out of a rack; the slide rails can pinch your fingers.

•After a component is inserted into the rack, carefully extend the rail into a locking

position, and then slide the component into the rack.

•Do not overload the AC supply branch circuit that provides power to the rack. The

total rack load should not exceed 80 percent of the branch circuit rating.

•Ensure that proper airflow is provided to components in the rack.

•Do not step on or stand on any system/component when servicing other

systems/components in a rack.

Precautions for Products With Modems,

Telecommunications, or Local Area Network Options

Observe the following guidelines when working with options:

•Do not connect or use a modem or telephone during a lightning storm. There

may be a risk of electrical shock from lightning.

•Never connect or use a modem or telephone in a wet environment.

•Do not plug a modem or telephone cable into the network interface controller

(NIC) receptacle.

•Disconnect the modem cable before opening a product enclosure, touching or

installing internal components, or touching an uninsulated modem cable or jack.

•Donotuseatelephonelinetoreportagasleakwhileyouareinthevicinityoftheleak.

Precautions for Products With Laser Devices

Observe the following precautions for laser devices:

•Do not open any panels, operate controls, make adjustments, or perform proce-

dures on a laser device other than those specified in the product’s

documentation.

•Only authorized service technicians should repair laser devices.

viii

When Working Inside Your Computer

Before you remove the computercovers, perform thefollowing steps in the sequence

indicated.

CAUTION: Some Dell systems can be serviced only by trained service tech-

nicians because of high voltages and energy hazards. Do not attempt to

service the computer system yourself, except as explained in this guide and

elsewhere in Dell documentation. Always follow installation and service

instructions closely.

NOTICE: To help avoid possible damage to the system board, wait

5 seconds after turning off the system before removing a component from

the system board or disconnecting a peripheral device from the computer.

1. Turn off your computer and any devices.

2. Ground yourself by touching an unpainted metal surface on the chassis, such as

the metal around the card-slot openings at the back of the computer, before

touching anything inside your computer.

While you work, periodically touch an unpainted metal surface on the computer

chassis to dissipate any static electricity that might harm internal components.

3. Disconnect your computer and devices from their power sources. Also,

disconnect any telephone or telecommunication lines from the computer.

Doing so reduces the potential for personal injury or shock.

In addition, take note of these safety guidelines when appropriate:

•When you disconnect a cable, pull on its connector or on its strain-relief loop, not

on the cable itself. Some cables have a connector with locking tabs; if you are dis-

connecting this type of cable, press in on the locking tabs before disconnecting

the cable. As you pull connectors apart, keep them evenly aligned to avoid bend-

ing any connector pins. Also, before you connect a cable, make sure that both

connectors are correctly oriented and aligned.

•Handle components and cards with care. Don’t touch the components or con-

tacts on a card. Hold a card by its edges or by its metal mounting bracket. Hold a

component such as a microprocessor chip by its edges, not by its pins.

CAUTION: There is a danger of a new battery exploding if it is incorrectly

installed. Replace the battery only with the same or equivalent type recom-

mended by the manufacturer. Discard used batteries according to the

manufacturer’s instructions.

Protecting Against Electrostatic Discharge

Static electricity can harm delicate components inside your computer. To prevent

static damage, discharge static electricity from your body before you touch any of

your computer’s electronic components, such as the microprocessor. You can do so

by touching an unpainted metal surface on the computer chassis.

As you continue to work inside the computer, periodically touch an unpainted metal

surface to remove any static charge your body may have accumulated.

You can also take the following steps to prevent damage from electrostatic

discharge (ESD):

•When unpacking a static-sensitive component from its shipping carton, do not

remove the component from the antistatic packing material until you are ready to

install the component in your computer. Just before unwrapping the antistatic

packaging, be sure to discharge static electricity from your body.

•When transporting a sensitive component, first place it in an antistatic container

or packaging.

•Handle all sensitive components in a static-safe area. If possible, use antistatic

floor pads and workbench pads.

The following notice may appear throughout this document to remind you of these

precautions:

NOTICE: See “Protecting Against Electrostatic Discharge” in the safety

instructions at the front of this guide.

Ergonomic Computing Habits

CAUTION: Improper or prolonged keyboard use may result in injury.

CAUTION: Viewing the monitor screen for extended periods of time may

result in eye strain.

For comfort and efficiency, observe the following ergonomic guidelines when you set

up and use your computer system:

•Position your system so that the monitor and keyboard are directly in front of you

as you work. Special shelves are available (from Dell and other sources) to help

you correctly position your keyboard.

•Set the monitor at a comfortable viewing distance (usually 510 to 610 millimeters

[20to24inches]fromyoureyes).

•Make sure that the monitor screen is at eye level or slightly lower when you sit in

frontofthemonitor.

•Adjustthe tilt ofthe monitor, its contrast and brightness settings, and the lighting

around you (such as overhead lights, desk lamps, and the curtains or blinds on

nearby windows) to minimize reflections and glare on the monitor screen.

•Use a chair that provides good lower back support.

•Keep your forearms horizontal with your wrists in a neutral, comfortable position

while you use the keyboard or mouse.

•Always leave space to rest your hands while you use the keyboard or mouse.

•Let your upper arms hang naturally at your sides.

•Sit erect, with your feet resting on the floor and your thighs level.

•When sitting, make sure the weight of your legs is on your feet and not on the

front of your chair seat. Adjust your chair’s height or use a footrest, if necessary,

to maintain proper posture.

•Vary your work activities. Try to organize your work so that you do not have to

type for extended periods of time. When you stop typing, try to do things that

use both hands.

1Monitor screen at or below eye level

2Wrists relaxed and flat

3Arms at desk level

4Feet flat on the floor

5Monitor and keyboard positioned directly in front of user

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