Dell PowerEdge 1750 Guide

Dell™PowerEdge™1750SystemsInstallationandTroubleshootingGuide
Introduction
Indicators, Messages, and Codes
Finding Software Solutions
Running the System Diagnostics
Troubleshooting Your System
Installing System Options
Installing Drives
Getting Help
Jumpers and Connectors
I/O Connectors
Abbreviations and Acronyms
Information in this document is subject to change without notice.
©2002DellComputerCorporation.Allrightsreserved.
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, PowerEdge, DellNet, Dell OpenManage, Dimension, Inspiron, Dell Precision, OptiPlex, and Latitude are trademarks of Dell Computer
Corporation; Xeon is a trademark and Intel is a registered trademark 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 Computer Corporation
disclaims any proprietary interest in trademarks and trade names other than its own.
Initial release: 17 Dec 2002
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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Jumpers and Connectors
Dell™PowerEdge™1750SystemsInstallationandTroubleshootingGuide
Jumpers—AGeneralExplanation
System Board Jumpers
System Board Connectors
SCSI Backplane Board Connectors
Disabling a Forgotten Password
This section provides specific information about the jumpers on the system board. It also provides some basic information on jumpers and switches and
describes the connectors and sockets on the various boards in the system.
Jumpers—AGeneralExplanation
Jumpers provide a convenient and reversible way of reconfiguring the circuitry on a printed circuit board. When reconfiguring the system, you may need to
change jumper settings on the system board. You may also need to change jumper settings on expansion cards or drives.
Jumpers
Jumpers are small blocks on a circuit board with two or more pins emerging from them. Plastic plugs containing a wire fit down over the pins. The wire
connects the pins and creates a circuit. To change a jumper setting, pull the plug off its pin(s) and carefully fit it down onto the pin(s) indicated. FigureA-1
shows an example of a jumper.
Figure A-1. Example Jumper


A jumper is referred to as open or unjumpered when the plug is pushed down over only one pin or if there is no plug at all. When the plug is pushed down
over two pins, the jumper is referred to as jumpered. The jumper setting is often shown in text as two numbers, such as 1-2. The number 1 is printed on the
circuit board so that you can identify each pin number based on the location of pin 1.
System Board Jumpers
FigureA-2 shows the location and default settings of the jumper blocks on the system board. See TableA-1 for the designations, default settings, and
functions of the system's jumpers.
Figure A-2. System Board Jumpers


CAUTION: Make sure the system is turned off before you change a jumper setting. Otherwise, damage to the system or unpredictable results may
occur.

Table A-1.SystemBoardJumperSettings
System Board Connectors
See FigureA-3 and TableA-2 for the descriptions and locations of the system board connectors.
Figure A-3. System Board Connectors and Sockets


Table A-2.SystemBoardConnectorsandSockets
Jumper
Setting
Description
PASSWD
(default)
The password feature is enabled.
The password feature is disabled.
NVRAM_CLR
(default)
The configuration settings are retained at system boot.
The configuration settings are cleared at next system boot. (If the configuration settings become corrupted to the point
where the system will not boot, install the jumper plug and boot the system. Remove the jumper before restoring the
configuration information.)
RSVD

Reserved (do not change).
jumpered unjumpered
Connector or Socket
Description
BACKPLANE
SCSI backplane board connector
B1
System battery connector
CYCLOPS
Cable-management arm system status connector
DIMM_1x; DIMM_2x
Memory module sockets
EMBEDDED_REMOTE_
ASSISTANT
Connector for optional RAC
EMP_NIC
RAC Ethernet port connector
ETHERNET_n
NIC connectors (2)
FANn
Cooling fan power connectors (six on system board; one on control panel assembly)
FRONT_PANEL
System control panel connector
KYBD
Keyboard connectors
MOUSE
Mouse connector
PCIn
PCI riser board connector
PROCESSOR 1
Microprocessor socket 1
PROCESSOR 2
Microprocessor socket 2
PS_PWR
System board power connector

SCSI Backplane Board Connectors
FigureA-4 shows the location of the connectors on the top of the SCSI backplane board.
Figure A-4. Connectors on the SCSI Backplane Board


Disabling a Forgotten Password
The system's software security features include a system password and a setup password, which are discussed in detail in "Using the System Setup
Program" in the User's Guide. A password jumper on the system board enables these password features or disables them and clears any password(s)
currently in use.
To disable a forgotten system password or setup password, perform the following steps.

1. Open the system covers. See "Opening the System Covers" in "Troubleshooting Your System."
2. See FigureA-2 for the location of the password jumper (labeled "PASSWD") on the system board.
3. Remove the jumper plug from the PASSWD jumper.
4. Close the system covers. See "Closing the System Covers" in "Troubleshooting Your System."
5. Reconnect the system to an electrical outlet and turn it on.
The existing passwords are not disabled (erased) until the system boots with the PASSWD jumper plug removed. However, before you assign a new
system and/or setup password, you must reinstall the jumper plug.

6. Repeat step 1.
7. Install the jumper plug on the PASSWD jumper.
8. Close the system covers, and then reconnect the system and peripherals to their electrical outlets and turn them on.
9. Assign a new system and/or setup password.
To assign a new passwords using the System Setup program, see "Assigning a System Password" in the User's Guide.
PS_SIG
Power supply signal connector
RAID
Socket for optional ROMB card
RAID BAT
Backup battery connector for ROMB card
SCSI_B
External SCSI connector
SERIAL
Serial port connector
USBn
USB connector
VGA
VGA connector
CAUTION: Only trained service technicians are authorized to remove the system cover and access any of the components inside the system. See
your System Information Guide for complete information about safety precautions, working inside the computer, and protecting against
electrostatic discharge.
NOTE: If you assign a new system and/or setup password with the jumper plug still removed, the system disables the new password(s) the next
time it boots.

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

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I/O Connectors
Dell™PowerEdge™1750SystemsInstallationandTroubleshootingGuide
I/O Connectors
Serial Connector
PS/2-Compatible Keyboard and Mouse Connectors
Video Connector
USB Connector
RAC Ethernet Connector
Integrated NIC Connector
Network Cable Requirements
I/O Connectors
I/O connectors are the gateways that the system uses to communicate with external devices, such as a keyboard, mouse, printer, or monitor. This section
describes the various connectors on your system. If you reconfigure the hardware connected to the system, you may also need the pin number and signal
information for these connectors. FigureB-1illustrates the I/O connectors on the system back panel; FigureB-2 identifies the I/O connectors on the front
panel.
Figure B-1. I/O Connectors on Back Panel


Figure B-2. I/O Connectors on Front Panel



TableB-1 shows the icons used to label the connectors on the system.

Table B-1.I/OConnectorIcon
Serial Connector
Serial connectors support devices such as external modems, printers, and mice that require serial data transmission. The serial connector uses a 9-pin D-
subminiature connector.
Serial Connector Autoconfiguration
The default designation of the integrated serial connector is COM1. When you add an expansion card containing a serial connector that has the same
designation as the integrated connector, the system's autoconfiguration feature remaps (reassigns) the integrated serial connector to the next available
designation. Both the new and the remapped COM connectors share the same IRQ setting. COM1 and COM3 share IRQ4, while COM2 and COM4 share IRQ3.

Before adding a card that remaps the COM connectors, check the documentation that came with the software to make sure that the software can
accommodate the new COM connector designation.
FigureB-3 illustrates the pin numbers for the serial connector and TableB-2 defines the pin assignments for the connector.
Figure B-3. Serial Connector Pin Numbers


Table B-2.SerialConnectorPinAssignments
PS/2-Compatible Keyboard and Mouse Connectors
Icon
Connector
Serial connector
Mouse connector
Keyboard connector
Video connector
USB connector
NIC connector
RAC Ethernet connector
NOTE: If two COM connectors share an IRQ setting, you may not be able to use them both at the same time. In addition, if you install one or more
expansion cards with serial connectors designated as COM1 and COM3, the integrated serial connector is disabled.
Pin
Signal
I/O
Definition
1
DCD
I
Data carrier detect
2
SIN
I
Serial input
3
SOUT
O
Serial output
4
DTR
O
Data terminal ready
5
GND
N/A
Signal ground
6
DSR
I
Data set ready
7
RTS
O
Request to send
8
CTS
I
Clear to send
9
RI
I
Ring indicator
Shell
N/A
N/A
Chassis ground

The PS/2-compatible keyboard and mouse cables attach to 6-pin, miniature DIN connectors. FigureB-4 illustrates the pin numbers for these connectors and
TableB-3 defines the pin assignments for these connectors.
Figure B-4. PS/2-Compatible Keyboard and Mouse Connector Pin Numbers


Table B-3. Keyboard and Mouse Connector
PinAssignments
Video Connector
You can attach a VGA-compatible monitor to the system's integrated video controller using a 15-pin high-density D-subminiature connector. FigureB-5
illustrates the pin numbers for the video connector and TableB-4 defines the pin assignments for the connector.

Figure B-5. Video Connector Pin Numbers


Table B-4.VideoConnectorPinAssignments
USB Connector
The system's USB connector supports USB-compliant peripherals such as keyboards, mice, and printers and may also support USB-compliant devices such as
diskette drives and CD drives. FigureB-6 illustrates the pin numbers for the USB connector and TableB-5 defines the pin assignments for the connector.
Pin
Signal
I/O
Definition
1
KBDATA or MSDATA
I/O
Keyboard data or mouse data
2
NC
N/A
No connection
3
GND
N/A
Signal ground
4
FVcc
N/A
Fused supply voltage
5
KBCLK or MSCLK
I/O
Keyboard clock or mouse clock
6
NC
N/A
No connection
Shell
N/A
N/A
Chassis ground
NOTE: Installing a video card automatically disables the system's integrated video controller.
Pin
Signal
I/O
Definition
1
RED
O
Red video
2
GREEN
O
Green video
3
BLUE
O
Blue video
4
NC
N/A
No connection
5–8, 10
GND
N/A
Signal ground
9
VCC
N/A
Vcc
11
NC
N/A
No connection
12
DDC data out
O
Monitor detect data
13
HSYNC
O
Horizontal synchronization
14
VSYNC
O
Vertical synchronization
15
DDC clock out
O
Monitor detect clock


Figure B-6. USB Connector Pin Numbers


Table B-5.USBConnectorPinAssignments
RAC Ethernet Connector
The system's optional RAC circuitry is designed to provide remote access capabilities for the system. It is designed specifically to work with systems
management software. FigureB-7 illustrates the pin numbers for the RAC Ethernet connector and TableB-6 defines the pin assignments for the connector.
Figure B-7. RAC Ethernet Connector


Table B-6.RACEthernetConnectorPinAssignments
Integrated NIC Connector
The system's integrated NIC functions as a separate network expansion card while providing fast communication between servers and workstations.
FigureB-8 illustrates the pin numbers for the NIC connector and TableB-7 defines the pin assignments for the connector.
Figure B-8. NIC Connector

NOTICE: Do not attach a USB device or a combination of USB devices that draw a maximum current of more than 500 mA per channel or +5 V. Attaching
devices that exceed this threshold may cause the USB connectors to shut down. See the documentation that accompanied the USB devices for their
maximum current ratings.
Pin
Signal
I/O
Definition
1
Vcc
N/A
Supply voltage
2
DATA–
I/O
Data (–)
3
DATA+
I/O
Data (+)
4
GND
N/A
Signal ground
Pin
Signal
I/O
Definition
1
TD+
O
Data out (+)
2
TD–
O
Data out (–)
3
RD+
I
Data in (+)
4
NC
N/A
No connection
5
NC
N/A
No connection
6
RD–
I
Data in (–)
7
NC
N/A
No connection
8
NC
N/A
No connection


Table B-7.NICConnectorPinAssignments
Network Cable Requirements
The NIC supports a UTP Ethernet cable equipped with a standard RJ45-compatible plug. Observe the following cabling restrictions.

lUse Category 5 or greater wiring and connectors.
lDo not exceed a cable run length (from a workstation to a hub) of 100 m (328 ft).
For detailed guidelines on operation of a network, see "Systems Considerations of Multi-Segment Networks" in the IEEE 802.3 standard.

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
Pin
Signal
I/O
Definition
1
TP0+
I/O
Data0 (+)
2
TP0–
I/O
Data0 (–)
3
TP1+
I/O
Data1 (+)
4
TP2+
I/O
Data2 (+)
5
TP2–
I/O
Data2 (–)
6
TP1–
I/O
Data1 (–)
7
TP3+
I/O
Data3 (+)
8
TP3–
I/O
Data3 (–)
NOTICE: To avoid line interference, voice and data lines must be in separate sheaths.

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Abbreviations and Acronyms
Dell™PowerEdge™1750SystemsInstallationandTroubleshootingGuide
The following list defines or identifies technical terms, abbreviations, and acronyms used in your user documents.
A
ampere(s)
AC
alternating current
ACPI
Advanced Configuration and Power Interface
ADC
analog-to-digital converter
ANSI
American National Standards Institute
APIC
Advanced Peripheral Interrupt Controller
ASIC
application-specific integrated circuit
BIOS
basic input/output system
bpi
bits per inch
bps
bits per second
BTU
British thermal unit
C
Celsius
CD
compact disc
CD
compact disc
CGA
color graphics adapter
cm
centimeter(s)
cpi
characters per inch
cpl
characters per line

CPU
central processing unit
DAC
digital-to-analog converter
DAT
digital audio tape
dB
decibel(s)
dBA
adjusted decibel(s)
DC
direct current
DDR
dual data rate
DIMM
dual in-line memory module
DIN
Deutsche Industrie Norm
DIP
dual in-line package
DMA
direct memory access
DOC
Department of Communications (in Canada)
dpi
dots per inch
DRAC
Dell remote access card
DRAM
dynamic random-access memory
DS/DD
double-sided double-density
DS/HD
double-sided high-density
DSA
Dell SCSI Array
ECC
error checking and correction
EDO
extended-data out

EGA
enhanced graphics adapter
EIDE
enhanced integrated drive electronics
EMI
electromagnetic interference
EMM
expanded memory manager
EMS
Expanded Memory Specification
EPP
Enhanced Parallel Port
EPROM
erasable programmable read-only memory
ESD
electrostatic discharge
ESDI
enhanced small-device interface
ESM
embedded server management
F
Fahrenheit
FAT
file allocation table
FCC
Federal Communications Commission
ft
feet
g
gram(s)
G
gravities
GB
gigabyte(s)
GUI
graphical user interface
h
Hz
hertz
I/O
input/output

ID
identification
IDE
integrated drive electronics
IRQ
interrupt request
K
kilo-(1024)
KB
kilobyte(s)
KB/sec
kilobyte(s) per second
Kb
kilobit(s)
Kbps
kilobit(s) per second
kg
kilogram(s)
kHz
kilohertz
LAN
local area network
lb
pound(s)
LCD
liquid crystal display
LED
light-emitting diode
LIF
low insertion force
LN
load number
lpi
lines per inch
LVD
low voltage differential
m
meter(s)
mA
milliampere(s)

mAh
milliampere-hour(s)
MB
megabyte(s)
Mb
megabit(s)
Mbps
megabit(s) per second
MBR
master boot record
MDA
monochrome display adapter
MGA
monochrome graphics adapter
MHz
megahertz
mm
millimeter(s)
ms
millisecond(s)
MTBF
mean time between failures
mV
millivolt(s)
NIC
network interface controller
NiCad
nickel cadmium
NiMH
nickel-metal hydride
NMI
nonmaskable interrupt
ns
nanosecond(s)
NTFS
NT File System
NVRAM
nonvolatile random-access memory
OTP
one-time programmable
PAL

programmable array logic
PCI
Peripheral Component Interconnect
PCMCIA
Personal Computer Memory Card International Association
PDB
power distribution board
PGA
pin grid array
POST
power-on self-test
ppm
pages per minute
PQFP
plastic quad flat pack
PS/2
Personal System/2
PXE
preboot execution environment
RAC
remote access controller
RAID
redundant arrays of independent disks
RAM
random-access memory
REN
ringer equivalence number
RFI
radio frequency interference
RGB
red/green/blue
ROM
read-only memory
ROMB
RAID on motherboard
rpm
revolutions per minute
RTC
real-time clock
SCSI

small computer system interface
sec
second(s)
SEC
single-edge contact
SDRAM
synchronous dynamic random-access memory
SIMM
single in-line memory module
SMB
server management bus
SNMP
Simple Network Management Protocol
SRAM
static random-access memory
SVGA
super video graphics array
TFT
thin film transistor
tpi
tracks per inch
UMB
upper memory block
UPS
uninterruptible power supply
USB
universal serial bus
V
volt(s)
VAC
volt(s) alternating current
VDC
volt(s) direct current
VGA
video graphics array
VLSI
very-large-scale integration
VRAM
video random-access memory
VRM
voltage regulator module

W
watt(s)
WH
watt-hour(s)
X
XMM
extended memory manager
XMS
eXtended Memory Specification
Z
ZIF
zero insertion force
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

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Introduction
Dell™PowerEdge™1750SystemsInstallationandTroubleshootingGuide
Other Documents You May Need
Your system is a rack-dense, full-featured, highly available, rack-mount system equipped with one or two Intel®Xeon™microprocessors.Thissystemincludes
the following service features to make troubleshooting and repair easy and effective:
lSystems management hardware, which monitors temperatures and voltages throughout the system and notifies you if the system overheats, if a
system cooling fan malfunctions, or if a power supply fails
lA comprehensive system diagnostics program, which checks for hardware problems (if the system can boot)
The following system upgrade options are offered:
lAn additional Intel Xeon microprocessor
lA second, hot-pluggable 320-W power supply
lAdditional memory up to 8 GB, by installing combinations of 128-MB, 256-MB, 512-MB, 1-GB, and 2-GB DDR SDRAM memory modules
lUp to two additional 1-inch, internal U320 SCSI hard drives (for a total of three)
lAn optional ROMB through a separate RAID controller that incorporates 128 MB of cache memory and a RAID battery
lUp to two PCI expansion cards: two 3.3-V, 64-bit, 133-MHz PCI-X cards or one 3.3-V, 64-bit, 133-MHz PCI-X card and one 5-V, 64-bit, 33-MHz PCI card
lOptional remote access controller (RAC) card for remote systems management
Other Documents You May Need

lThe Rack Installation Guide included with your rack solution describes how to install your system into a rack.
lThe Setting Up Your System document provides an overview of initially setting up your system.
lThe User's Guide provides information about system features and technical specifications
lThe Dell Remote Access Controller Installation and Setup Guide provides complete information about installing, configuring, and using a RAC to remotely
access a system.
lSystems management software documentation describes the features, requirements, installation, and basic operation of the software.
lOperating system documentation describes how to install (if necessary), configure, and use the operating system software.
lDocumentation for any components you purchased separately provides information to configure and install these options.
lUpdates are sometimes included with the system to describe changes to the system, software, and/or documentation.

lRelease notes or readme files may be included to provide last-minute updates to the system or documentation or advanced technical reference material
intended for experienced users or technicians.
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
The System Information Guide provides important safety and regulatory information. Warranty information may be included within this document or as a
separate document.
NOTE: Always read the updates first because they often supersede information in other documents.

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Indicators, Messages, and Codes
Dell™PowerEdge™1750SystemsInstallationandTroubleshootingGuide
Indicators on the Optional Bezel
Front-Panel Features
Back-Panel Features
Power Supply Features
System Messages
System Beep Codes
Warning Messages
Diagnostics Messages
Alert Messages
Applications, operating systems, and the system itself are capable of identifying problems and alerting you to them. When a problem occurs, a message may
appear on the monitor screen or a beep code may sound.
Several different types of messages can indicate when the system is not functioning properly:
lIndicators on the front bezel
lFront-panel indicators
lSCSI hard drive indicators
lPower supply indicators
lSystem messages
lSystem beep codes
lWarning messages
lDiagnostics messages
lAlert messages
The system indicators and the front and back panel features are illustrated in the following figures. This section also describes each type of message and lists
the possible causes and actions you can take to resolve any problems indicated by a message. To determine what type of message you have received, read
the following sections.
Indicators on the Optional Bezel
The optional system bezel incorporates a system status indicator divided into blue and amber system status indicators. See Figure2-1. The blue indicator
lights up when the system is operating correctly. The amber caution indicator lights up when the system needs attention due to a problem with power
supplies, fans, system temperature, system memory, or hard drives.
Table2-1 lists the system's indicator patterns. Different patterns are displayed as events occur in the system.
Figure 2-1. System Status Indicators


Table 2-1.SystemStatusIndicatorPatterns
Blue Indicator
Amber Caution Indicator
Description