About Your System 29
Diagnostics Indicator Codes

The four diagnostics indicators on the system front panel display error codes

during system startup. Table1-5 lists the causes and possible corrective

actions associated with these codes.

Write fault
Write fault on
selected drive
Faulty diskette, diskette
drive, hard drive.
Replace the diskette.
Ensure that the diskette
drive and hard-drive cables
are properly connected. See
"Troubleshooting a USB
Device" on page102 or
"Troubleshooting a Hard
Drive" on page111 for the
appropriate drive(s)
installed in your system.
Table 1-5. Diagnostic Indicator Codes
Code Causes Corrective Action
Possible processor
failure.
See "Troubleshooting the
Microprocessor" on page114.
Memory failure. See "Troubleshooting System
Memory" on page108.
Possible expansion
card failure.
See "Troubleshooting Expansion
Cards" on page113.
Table 1-4. System Messages (continued)
Message Causes Corrective Actions
A B C D
A B C D
A B C D

= yellow

= green

= off

book.book Page 29 Thursday, August 30, 2007 3:30 PM