Dell Dimension 4100 Bedienungsanleitung

Dell®PowerEdge®4100/180 and 4100/200 Systems

SERVICE MANUAL

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 logo, and PowerEdge are registered trademarks of Dell Computer Corporation; Intel, Pentium, and LANDesk are

registered trademarks of Intel Corporation; IBM is a registered trademark of International Business Machines Corporation; MS-DOS is a registered trademark 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 Computer

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

November 1996 P/N 58562

System Overview 1-1

Chapter 1

System Overview

The Dell®PowerEdge®4100 systems covered in this manual are high-speed,

upgradable server systems, which use the Intel®Pentium®Pro family of

microprocessors. PowerEdge 4100 systems incorporate the high-performance

peripheral component interconnect (PCI) local bus as well as the extended

industry-standard architecture (EISA) expansion bus. These buses are built into

the system board, which integrates the microprocessor(s)and other elements of the

basic computer system.

PowerEdge 4100 systems may have one or two Pentium Pro microprocessors.

The systems have been designed for better serviceability and increased reliabil-

ity, with optional redundant power supplies, RAID capability, hot-pluggable

SCSI hard-disk drives, thermal and power supply monitoring, redundant fans,

and ECC memory. The PowerEdge 4100 systems are freestanding or can be

rackmounted to integrate your servers. The microprocessor modules are

installed in zero insertion force (ZIF) sockets on the system board, which allow

you to replace microprocessors faster. Contact Dell for information about Dell-

supported microprocessor upgrades.

The Pentium Pro microprocessor contains a built-in clock multiplier circuit,

which increases the microprocessor’s internal operating frequency to a multiple

of the system clock frequency. The microprocessors for each of these systems

and their operating frequencies are as follows:

•Dell PowerEdge 4100/180 system — 180 MHz derived from a system clock

frequency of 60 MHz

•Dell PowerEdge 4100/200 system — 200 MHz derived from a system clock

frequency of 66 MHz

System Features

In addition to the standard features found in a traditional personal computer,

Dell PowerEdge 4100 systems include the following new and/or advanced

features:

•256 KB (PowerEdge 4100/180 systems) or 512 KB (PowerEdge 4100/200

systems) of cache memory internal to the Pentium Pro module

•64 MB of 72-bit wide, buffered, extended data output (EDO) main memory,

upgradable to 1024 MB (1 GB)

•Hot-pluggable SCSI backplane supporting up to six hard-disk drives

•Optional, redundant hot-pluggable power supplies

1-2Dell PowerEdge 4100/180 and 4100/200 Systems Service Manual

•Error correction code (ECC) feature built into the memory controller on the

system board

•Advanced combination EISA and PCI expansion subsystem

•Five PCI and three EISA expansion-card slots (none shared)

•Integrated VGA-compatible video subsystem attached to the PCI bus,with

1MB video memory standard

•BIOS in upgradable flash memory attached to the EISA bus

•Integrated super I/O controller attached to the EISA bus, provides a

bidirectional parallel port, two serial ports, and the diskette drive interface

•Integrated ultra-wide and ultra-narrow SCSI controllers

•Integrated server management circuitry that monitors critical system volt-

ages and temperatures, as well as the operation of the system cooling fans

•CD-ROM drive standard in an externally accessible drive bay

•Recessed power and reset buttons to prevent accidental system interruptions

•New quick-test feature in the system diagnostics

All of these features, except the new quick-test feature,are briefly described in

this chapter.(For more information about the Quick Test option in the CD-ROM

based diagnostics, see “Running the System Diagnostics” in Chapter2.) For a complete

list of system features, see “Technical Specifications” found later in this chapter.

For information about installing the PowerEdge 4100 systems in a rack, see the

“Dell PowerEdge 4100 and 6100 Systems Rack Kit Installation Guide”

(P/N 40722).

System Overview 1-3

Figure 1-1. Computer Orientation

NOTE: When following the text in this manual, assume that the location or

direction relative to the system is as shown in Figure 1-1.

back of computer

right side

left side

front of computer

1-4Dell PowerEdge 4100/180 and 4100/200 Systems Service Manual

Figure 1-2. Front-Panel Features

CAUTION: To avoid possible data or file structure corruptions, the front-

panel reset button should be used only when restarting the system with a

key combination fails. Before using the reset button to initiate a hardware

reset, close any open application programs and files if possible. If you are

using MS-DOS®, the system can be rebooted by pressing

<Ctrl><Alt><Del>.

power button and

power-on indicator

reset button diskette-drive access

indicator (typical)

SCSI hard-disk drive

activity indicator

SCSIhard-diskdrive

fault indicator

SCSIhard-diskdrive

online indicator

System Overview 1-5

Figure 1-3. Front/Left Internal View

external drive bays (4)

internal drive

bays (6)

control panel

system board

microprocessor sockets

expansion slots

cooling fan connectors (3)

(cooling fans are located

behind the air intake panel)

air intake panel

hard-disk drive

security lock

1-6Dell PowerEdge 4100/180 and 4100/200 Systems Service Manual

Figure 1-4. Back/Right Internal View

SCSI backplane board

external drive bays (4)

internal drive bays (6)

SCSI interface

connector (ultra-wide)

SCSI power connector

server

management

connector

control panel connector

diskette interface

cable (ultra-narrow)

power supply (optional) power supply SMB connector SCSI connector port

System Overview 1-7

Figure 1-5. I/O Panel

parallel port connector

AC power receptacle

serial port 1 connector

mouse connector

keyboard connector

serial port 2 connector

video connector

server-management

serial port connector

security cable slot

power supply

cablestrainrelief

power supply

(optional)

SMB connector SCSI connector port

red LED

green LED

keylock keylock

1-8Dell PowerEdge 4100/180 and 4100/200 Systems Service Manual

System Memory

The PowerEdge 4100 systems have a minimum of 64 MB of 72-bit-wide, buff-

ered EDO memory. The system memory capacity can be expanded to 1024 MB

(1 GB) by using combinations of 32- and 128-MB buffered, EDO dual in-line

memory modules (DIMMs) having gold connectors.

The system board has eight 168-pin DIMM sockets. The socket population rules

for the DIMMs are as follows:

•Populate the DIMM sockets in order from DIMM A (upper) to DIMM H

(lower).

•The DIMMs should be obtained from Dell to guarantee compatibility. All

system memory operates at the speed of the slowest DIMM installed.

•DIMMs of both capacities can be installed in the system. However, the

larger-capacity DIMMsshould be installed in the top sockets, beginning

with socket DIMM A, with the smaller-capacity DIMMs installed after-

wards in order toward socket DIMM H.

The 72-bit wide, buffered EDO DIMMs support the ECC feature, which detects

memory errors and corrects single-bit memory errors. The ECC feature pro-

vides more reliable memory and less downtime, and is built into the memory

controller on the system board.

See “DIMMs” in Chapter 4 for information on removing and replacing DIMMs.

Advanced Expansion Subsystem

The computer system offers advanced expansion subsystems that can support a

mixture of traditional EISA expansion cards, Plug and Play ISA expansion cards,

and PCI expansion cards. The EISA Configuration Utility,included with the system,

provides a means of avoiding resource conflicts that might arise from such an

arrangement.

After all legacy cards have been configured with the EISA Configuration Utility,

the system automatically assigns required memory space, IRQ lines, and DMA

channels to any installed Plug and Play ISA expansion cards and PCI expansion

cards the next time the system is rebooted. Chapter 5, “Using the EISA Config-

uration Utility,” in the Dell PowerEdge 4100/180 and 4100/200 Systems User’s

Guide describes the EISA Configuration Utility and provides instructions for using it

to configure the system.

The eight expansion-card slots include three EISA expansion-card connectors

and five PCI expansion-card connectors. The expansion-card connectors are

located on the system board (see Figure 1-18).

Integrated Server Management

The system board contains integrated server management circuitry that moni-

tors critical system voltages and temperatures, as well as the operation and

speed of the system cooling fans.The integrated server management circuitry

works in conjunction with the Intel LANDesk®Server Management suite.

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