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Preface: Dell PowerEdge 1550 and PowerApp 120 Systems Service Manual
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Preface: Dell™ PowerEdge™ 1550 and PowerApp™ 120 Systems Service Manual
A prerequisite for using this manual to service Dell computer
systems is a basic knowledge of IBM®-compatible PCs and prior training in IBM-compatible
PC troubleshooting techniques. In addition to information provided in this manual and in
the User's Guide that came with the system, Dell provides the Installation
and Troubleshooting Guide for troubleshooting procedures and instructions on using
Dell Diagnostics to test the computer system.
The sections are summarized as follows:
- "Safety Instructions" — Lists
safety guidelines and precautions you should take to ensure your own safety
and help protect your computer system from potential damage.
- "System Overview" — Overview
of the system's service features and technical specifications.
- "Basic Troubleshooting" —
Initial checks and procedures used to solve basic system problems and information on more
detailed service and troubleshooting procedures to solve more complex problems.
- "Codes and Error Messages" —
Power-on self test (POST) beep codes, system messages, system codes, warning messages,
diagnostics messages, alert log messages, and small computer system interface (SCSI)
hard-disk drive indicator codes.
- "Removing and Replacing Parts"
— Removal and replacement of all field-replaceable parts, including memory modules,
microprocessors, expansion cards, and SCSI devices.
- "Jumpers, Switches, and Connectors"
— Jumper or switch settings to change when servicing the system.
- "Using the System Setup Program"
— The System Setup program is used to change the system configuration information
stored in nonvolatile random-access memory (NVRAM) on the system board.
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