About Your System 23
Diskette drive or hard
drive failure.
Ensure that the diskette drive and hard-drive
are properly connected. See "Installing a Hard
Drive" on page56 for information on the drives
installed in your system.
Possible USB failure. See "Troubleshooting a USB Device" on
page83.
No memory modules
detected.
See "Troubleshooting System Memory" on
page88.
System board failure. See "Getting Help" on page103.
Memory configuration
error.
See "Troubleshooting System Memory" on
page88.
Possible system board
resource and/or system
board hardware failure.
See "Troubleshooting IRQ Assignment
Conflicts" on page80. If the problem persists,
see "Getting Help" on page103.
Possible expansion card
failure.
See "Troubleshooting Expansion Cards" on
page91.
Other failure. Ensure that the optical drive and hard drives
are properly connected. See "Troubleshooting
Your System" on page79 for the appropriate
drive installed in your system.
If the problem persists, see "Getting Help" on
page103.
Table 1-5. Diagnostic Indicator Codes (continued)
Code Causes Corrective Action
= yellow= green= off
A B C D
A B C D
A B C D
A B C D
A B C D
A B C D
A B C D
A B C D