Dell B110 User Manual

Dell™ Dimension™ 1100/B110 Systems Service Manual

Before You Begin Removing the Computer Cover Technical Overview Technical Specifications Advanced Troubleshooting System Setup Removing and Installing Parts Replacing the Computer Cover

Notes, Notices, and Cautions

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.

Abbreviations and Acronyms

For a complete list of abbreviations and acronyms, see the Dell Dimension Help file.

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

Reproduction in any manner whatsoever without the written permission of Dell Inc. is strictly forbidden. Trademarks used in this text: Dell, the DELL logo, Inspiron, Dell Precision , Dimension, OptiPlex, Latitude, PowerEdge, PowerVault, PowerApp, and

Dell OpenManage are trademarks of Dell Inc.; Intel, Pentium, and Celeron are registered trademarks of Intel Corporation; Microsoft and Windows are registered trademarks of Microsoft 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 Inc. disclaims any proprietary interest in trademarks and trade names other than its own.

Model DMC August 2006 Rev. A02

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Before You Begin

Dell™ Dimension™ 1100/B110 Systems Service Manual

Getting Started Recommended Tools Turning Off Your Computer Before Working Inside Your Computer

Getting Started

This chapter provides procedures for removing and installing the components in your computer. Unless otherwise noted, each procedure assumes that the following conditions exist:

You have performed the steps in Turning Off Your Computer and Before Working Inside Your Computer. You have read the safety information in your Dell™ Product Information Guide. A component can be replaced or—if purchased separately—installed by performing the removal procedure in reverse

order.

Recommended Tools

The procedures in this document may require the following tools:

Small flat-blade screwdriver Phillips screwdriver

Turning Off Your Computer

NOTICE: To avoid losing data, save and close any open files and exit any open programs before you turn off your

computer.

1. Shut down the operating system: a. Save and close any open files, exit any open programs, click the Start button, and then click Turn Off

Computer.

b. In the Turn off computer window, click Turn off.

The computer turns off after the operating system shutdown process finishes.

2. Ensure that the computer and any attached devices are turned off. If your computer and attached devices did not

automatically turn off when you shut down your operating system, press and hold the power button for 4 seconds.

Before Working Inside Your Computer

Use the following safety guidelines to help protect your computer from potential damage and to help ensure your own

personal safety.

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in

the Product Information Guide.

CAUTION: Handle components and cards with care. Do not touch the components or contacts on a card.

Hold a card by its edges or by its metal mounting bracket. Hold a component such as a processor by its edges, not by its pins.

NOTICE: Only a certified service technician should perform repairs on your computer. Damage due to servicing that is

not authorized by Dell is not covered by your warranty.

NOTICE: 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 disconnecting this type of cable, press in on the locking tabs before you disconnect the cable. As you pull connectors apart, keep them evenly aligned to avoid bending any connector pins. Also, before you connect a cable, ensure that both connectors are correctly oriented and aligned.

NOTICE: To avoid damaging the computer, perform the following steps before you begin working inside the computer.

1. Turn off your computer

NOTICE: To disconnect a network cable, first unplug the cable from your computer and then unplug it from the

network wall jack.

2. Disconnect any telephone or telecommunication lines from the computer.

3. Disconnect your computer and all attached devices from their electrical outlets, and then press the power button to

ground the system board.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

opening the cover.

4. 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.

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Removing the Computer Cover

Dell™ Dimension™ 1100/B110 Systems Service Manual

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in

the Product Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

opening the cover.

1. Follow the procedures in Before You Begin

2. Lay your computer on its side with the computer cover facing up.

3. If your computer cover has a cover latch, slide and hold the cover latch.

4. Grip the indents on the computer cover, and slide the computer cover toward the back of the computer.

5. Place the computer cover on a level surface.

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Technical Overview

Dell™ Dimension™ 1100/B110 Systems Service Manual

Inside View of Your Computer System Board Components Power Supply DC Connector Pin Assignments

Inside View of Your Computer

CAUTION: Before you begin any of the procedures in this section, see the safety instructions located in the

Product Information Guide.

CAUTION: To guard against electrical shock, always unplug your computer from the electrical outlet before

opening the computer cover.

System Board Components

Power Supply DC Connector Pin Assignments

The 250-W power supply can operate from an AC power source of 115 VAC or 230 VAC at 50 – 60 Hz. The power supply provides the DC operating voltages and currents listed in the following table.

Output Voltage

Minimum Current (A)

+12 VDC 0.0 +5 VDC +3.3 VDC

1.0/0.2

0.1/0.0

Maximum Current (A)

16.0

22.0

18.0

- - –12 VDC 0.0 1.0 +5 VFP 0.0 2.0

Outputs will meet and not exceed SELV requirements per electrical standards, i.e. UL 60950, IEC 60950, EN60950

PAR.2.3.

Maximum continuous combined load on +5 VDC and +3.3 VDC outputs will not exceed 150 watts.

Peak +12 VDC output power (up to 17.0 amps) will not exceed 15 seconds in duration. Under this condition, tolerance on

the +12v output, is allowed to be +/- 10%.

+5 VDC minimum load will be 0.2A when there is a minimum load of 0.3A on the +12 VDC and 0.42A on the +3.3 VDC

outputs simultaneously. +5V min load is 1A for load transient tests.

In system applications where +3.3VDC is not used, all other outputs will stay within regulation while the +3.3 VDC output

is in a zero load condition.

DC Power Connector P1

NOTE: The +3.3 VDC output wires (orange) must be 16 AWG. All other output wires must be 18 AWG.

Pin Number Signal name Wire Color

1 +3.3 VDC Orange 2 +3.3 VDC Orange 3 COM Black 4 +5 VDC Red 5 COM Black 6 +5 VDC Red 7 COM Black 8 POK Gray 9 +5 VFP Purple 10 +12 VDC Yellow 11 +3.3 VDC Orange 12 –12 VDC Blue 13 COM Black 14 PS_ON Green 15 COM Black 16 COM Black 17 COM Black 18 N/C N/C 19 +5 VDC Red 20 +5 VDC Red

DC Power Connector P2

Pin Number Signal Name 18-AWG Wire Color

1 COM Black 2 COM Black 3 +12 VDC Yellow 4 +12 VDC Yellow

DC Power Connectors P8 and P9

Pin Number Signal Name 18-AWG Wire Color

1 +12 VDC Yellow 2 COM Black 3 COM Black 4 +5 VDC Red

DC Power Connector P4

Pin Number Signal Name 18-AWG Wire Color

1 - No connect 2 COM Black 3 COM Black 4 +3.3 VDC Orange 5 +5 VDC Red 6 +12 VDC Yellow

DC Power Connector P6

Pin Number Signal Name 18-AWG Wire Color

1 +12 VDC Yellow 2 COM Black 3 COM Black 4 +5 VDC Red

DC Power Connector P7

Pin Number Signal Name 22-AWG Wire Color

1 +5 VDC Red 2 COM Black 3 COM Black 4 +12 VDC Yellow

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Technical Specifications

Dell™ Dimension™ 1100/B110 Systems Service Manual

Processor Processor type

Level 1 (L1) cache 8 KB Level 2 (L2) cache 128-KB or 512-KB (depending on your

Memory

Type 333- and 400-MHz DDR SDRAM

Intel® Pentium and Intel Celeron

NOTE: Not all Pentium 4 processors

support Hyper-Threading technology.

computer configuration) pipelined-burst, eight-way set associative, write-back SRAM

NOTE: DDR333 and DDR400 memory

runs at 266MHz when configured with Celeron 400MHz FSB processors

NOTE: DDR333 memory runs at 320MHz

when configured with Pentium 4 800MHz FSB processors

4 with HT Technology

Memory connectors two Memory capacities 128-, 256-, 512-, or 1-GB non-ECC Minimum memory 128 MB

NOTE: Between 1 and 64 MB of system

memory may be allocated to support graphics, depending on system memory

size and other factors. Maximum memory 2 GB BIOS address F0000h

Computer Information

Chip set Intel 865 GV DMA channels Seven Interrupt levels 24 BIOS chip (NVRAM) 4 Mb NIC integrated network interface capable of

10/100 communication. System Clock Intel Pentium 4: 800 MHz

Intel Celeron: 533 MHz

Video

Type Integrated Intel Extreme Graphics 2

Audio

Type AC97, Sound Blaster Emulation, ADI 1980

Expansion Bus

Bus type PCI Bus speed 33 MHz

PCI

connectors three connector size 120 pins connector data width (maximum) 32 bits

Drives

audio controller with 2.1 implementation

Externally accessible:

One bay for a floppy drive, and two bays

for CD/DVD drives Available devices Floppy drive, USB memory devices, CD

drive,

CD-RW drive, DVD drive, DVD-RW drive,

and DVD and CD-RW combo drive Internally accessible:

One bay for 1-inch-high IDE hard drives

Connectors

External connectors:

Serial 9-pin connector; 16550C-compatible Parallel 25-hole connector (bidirectional) Video 15-hole connector Network adapter RJ45 connector PS/2 (keyboard and mouse) 6-pin mini-DIN USB two front-panel and four back-panel USB

2.0–compliant connectors

Audio Three connectors for line-in, line-out, and

microphone; one front-panel connector

for headphones System board connectors:

Primary IDE drive 40-pin connector on PCI local bus

Secondary IDE drive 40-pin connector on PCI local bus

Floppy drive 34-pin connector

octave/min

CD Audio 4-pin connector Fan 3-pin connector

Controls and Lights

Power control Push button Hard-drive access light Green Link integrity light (on integrated network

adapter) Activity light (on integrated network

adapter) Diagnostic lights Four lights on the back panel

Power

DC power supply:

Wattage 250 W Heat dissipation 853 BTU/hr

Voltage (see the safety instructions located in the Product Information Guide for important voltage setting information)

Backup battery 3-V CR2032 lithium coin cell

No light for 10-Mb operation; green light

for 100-Mb operation

Yellow blinking light

NOTE: Heat dissipation is calculated

based upon the power supply wattage

rating.

manual selection power supplies — 90 to

135 V at 50/60 Hz; 180 to 265 V at 50/60

Physical

Height x width x depth 41.9 x 18.1 x 36.8 cm

(16.5 x 7.13 x 14.50 inches) Weight 11.34 kg (25 lb)

Environmental

Temperature:

Operating 10º to 30ºC (50º to 86ºF)

NOTE: At 30°C (86°F), the maximum

operating altitude is 914 m (3000 ft).

Storage –40º to 65ºC (–40º to 149ºF) Relative humidity 20% to 80% (noncondensing) Maximum vibration:

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

Storage 2.20 Grms at 10 to 500 Hz at 1

Maximum shock:

Operating 105 G, 2 ms

Storage 32 G with a velocity change of 596.9

Altitude:

Operating –15.2 to 3048 m (–50 to 10,000 ft)

Storage –15.2 to 10,670 m (–50 to 35,000 ft)

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cm/sec (235 inches/sec)

NOTE: At 30°C (95°F), the maximum

operating altitude is 914 m (3000 ft).

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blinking on blinking on off

Advanced Troubleshooting

Dell™ Dimension™ 1100/B110 Systems Service Manual

Power Lights Network Lights Diagnostic Lights Beep Codes System Messages

Power Lights

The power button light located on the front of your computer illuminates and blinks or remains solid to indicate different states:

If the power light is green, the power status is good and the computer is functioning properly. If the power light is green and the computer is not responding, see Network Lights. If the power light is blinking green, the computer is in standby mode. Press a key on the keyboard or move the mouse

to resume normal operation. If the power light is off, the computer is either turned off or is not receiving power.

Reseat the power cable into both the power connector on the back of the computer and the electrical outlet. If the computer is plugged into a power strip, ensure that the power strip is plugged into an electrical outlet and

that the power strip is turned on. Also bypass power protection devices, power strips, and power extension cables to verify that the computer turns on properly.

Ensure that the electrical outlet is working by testing it with another device, such as a lamp. Ensure that the main power cable and front panel cable are securely connected to the system board.

If the power light is blinking amber, the computer is receiving electrical power, but an internal power problem might exist.

Ensure that the voltage selection switch is set to match the AC power at your location (if applicable). Ensure that the processor power cable is securely connected to the system board.

If the power light is steady amber, a device might be malfunctioning or incorrectly installed.

Remove and then reinstall the memory modules. Remove and then reinstall any cards. Remove and then reinstall the graphics card, if applicable.

Network Lights

100 Mb Link 10 Mb Link No Link

Active Non-active Active Non-active

Yellow LED

Green LEG

on on off off off

Diagnostic Lights

CAUTION: Before you begin any of the procedures in this section, follow the safety instructions located in

the Product Information Guide.

To help you troubleshoot a problem, your computer has four lights labeled "A," "B," "C," and "D" on the back panel. The lights can be yellow or green. When the computer starts normally, the lights flash. After the computer starts, all four lights display solid green. If the computer malfunctions, the color and sequence of the lights identify the problem.

Light Pattern Problem Description Suggested Resolution

The computer is in a normal off condition or a possible pre-BIOS failure has occurred.

Memory modules are detected, but a memory failure has occurred.

A possible graphics card failure has occurred.

A possible floppy or hard drive failure has occurred.

Plug the computer into a working electrical outlet and press the power button.

If you have one memory module installed, reinstall the memory module and restart the computer. If you have two or more memory modules installed, remove the modules, reinstall one memory module If the computer starts normally, reinstall an additional module. Continue until you have identified a faulty module or reinstalled all modules without error. If available, install properly working memory of the same type into your computer. If the problem persists, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.

If the computer has a graphics card, remove the card, reinstall it, and then restart the computer. If the problem still exists, install a graphics card that you know works and restart the computer. If the problem persists or the computer has integrated graphics, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.

Reseat all power and data cables and restart the computer.

, and then restart the computer.

A possible USB failure has occurred.

Memory modules are detected, but a memory configuration or compatibility error exists.

A possible expansion card failure has

Reinstall all USB devices, check cable connections, and then restart the computer.

Ensure that no special memory module/memory connector placement requirements exist (see Specifications). Verify that the memory modules that you are installing are compatible with your computer (see Specifications). If the problem persists, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.

1. Determine if a conflict exists by removing a card (not a graphics card) and restarting the computer.

occurred. 2. If the problem persists, reinstall the card that you removed, remove a

different card, and then restart the computer.

3. Repeat this process for each card. If the computer starts normally, troubleshoot the last card removed from the computer for resource conflicts.

4. If the problem persists, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.

Beep Codes

Another failure has occurred.

The computer is in a normal operating condition after POST.

Ensure that the cables are properly connected to the system board from the hard drive, CD drive, and DVD drive. If there is an error message on your screen identifying a problem with a device (such as the floppy drive or hard drive), check the device to make sure it is functioning properly. The operating system is attempting to boot from a device (such as the floppy drive or hard drive); check system setup boot sequence is correct for the devices installed on your computer. If the problem persists, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.

None.

to make sure that the

Your computer might emit a series of beeps during start-up if the monitor cannot display errors or problems. This series of beeps, called a beep code, identifies a problem. One possible beep code (code 1-3-1) consists of one beep, a burst of three beeps, and then one beep. This beep code tells you that the computer encountered a memory problem.

Reseating the memory modules may fix the beep code errors in the following table. If the problem persists, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.

Code Cause

1-3-1 through 2-4-4 Memory not being properly identified or used 4-3-1 Memory failure above address 0FFFFh

If you hear one of the following beep codes, see "Contacting Dell" in your Owner's Manual for instructions on obtaining technical assistance.

Code Cause

1-1-2 Microprocessor register failure 1-1-3 NVRAM 1-1-4 ROM BIOS checksum failure 1-2-1 Programmable interval timer 1-2-2 DMA initialization failure 1-2-3 DMA page register read/write failure

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Dell B110 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual