22 About Your System
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
page83, "Troubleshooting a Hard Drive"
on page90, or "Troubleshooting a Hard
Drive" on page90 for the appropriate
drive(s) installed in your system.
Table 1-4. System Messages (continued)
Message Causes Corrective Actions
Table 1-5. Diagnostic Indicator Codes
Code Causes Corrective Action
Possible processor failure. See "Troubleshooting the Microprocessor" on
page92.
Memory failure. See "Troubleshooting System Memory" on
page88.
Possible expansion card
failure.
See "Troubleshooting Expansion Cards" on
page91.
Possible video card
failure.
See "Troubleshooting Expansion Cards" on
page91.
A B C D
A B C D
A B C D
A B C D

= yellow

= green

= off