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5-6
Problem Solving
Diagnostic Procedures
This section provides a more detailed approach to diagnosing and identifying problems
and then locating their sources.
Error Checking
Each time you turn on the system, POST (Power-On-Self-Test) runs automatically and
checks the system board, processors, memory board, keyboard, and mouse.
If POST finds an error, it displays an error message. Refer to the
Error Message
section
in this chapter for an explanation of each error message.
Troubleshooting Guide
Use the following troubleshooting procedures to help you identify a problem. These
general procedures lead you through the following:
!
Preparing the system for diagnosing problems
!
Monitoring POST while it is running
!
Verifying proper operation of key system LEDs
!
Confirming loading of the operating system.
Preparing the System for Diagnosing Problems
To prepare the system for diagnosing problems, perform the following:
Note:
Before disconnecting any peripheral cables from the
system, turn off the system and any external peripheral devices.
Failure to do so can cause permanent damage to the system and/or
the peripheral devices.
1.
Turn off the system and all external peripheral devices. Disconnect all devices from
the system except the keyboard and video monitor.
2.
Make sure the system power cords are plugged into a properly grounded AC outlet.
3.
Make sure your video display monitor and keyboard are correctly connected to the
system. Turn on the video monitor. Set its brightness and contrast controls to at least
two-thirds of their maximum ranges (refer to the documentation supplied with your
video display monitor).
4.
If the operating system normally loads from the hard disk drive, make sure there is
no diskette in drive A. Otherwise, place a diskette containing the operating system
files in drive A.
5.
Turn on the system. If the power indicator LED does not light, refer to
Power Light
Does Not Light
found later in this chapter.
Summary of Contents for Express5800/140Hb
Page 1: ... S e r v i c e G u i d e EXPRESS5800 140Hb ...
Page 2: ......
Page 3: ... S e r v i c e G u i d e EXPRESS5800 140Hb ...
Page 10: ...viii Contents ...
Page 18: ...xvi Using This Guide ...
Page 48: ...1 30 System Overview ...
Page 64: ...2 16 Setting Up the System Figure 2 10 Connecting the AC Power Cord to the Server ...
Page 98: ...3 28 Configuring Your System ...
Page 101: ......
Page 176: ...4 76 Disassembly and Reassembly ...
Page 200: ...5 24 Problem Solving ...
Page 201: ...6 Illustrated Parts Breakdown Exploded View Field Replaceable Units ...
Page 211: ...A Technical Specifications Server Unit ...
Page 214: ...A 4 Technical Specifications ...
Page 220: ...B 6 Interrupt Request PCI IRQ Device I O Port Address Assignments ...
Page 231: ...D ROMPilot BIOS Error Codes ROMPilot BIOS Error Codes ...
Page 234: ...D 4 ROMPilot BIOS Error Codes ...
Page 235: ...E Connectors Overview External Device Connector Pin Information ...
Page 250: ...10 Glossary ...
Page 256: ...Index 4 ...
Page 257: ...xx ...
Page 258: ... 456 01547 000 ...