30 About Your System
Possible video card
failure.
See "Troubleshooting Expansion
Cards" on page113.
Diskette drive or hard
drive failure.
Ensure that the diskette drive and
hard-drive are properly connected.
See "Installing a Hard Drive" on
page67 for information on the
drives installed in your system.
Possible USB failure. See "Troubleshooting a USB Device"
on page102.
No memory modules
detected.
See "Troubleshooting System
Memory" on page108.
System board failure. See "Getting Help" on page127.
Memory
configuration error.
See "Troubleshooting System
Memory" on page108.
Possible system board
resource and/or
system board
hardware failure.
See "Troubleshooting IRQ
Assignment Conflicts" on page98.
If the problem persists, see "Getting
Help" on page127.
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
book.book Page 30 Thursday, August 30, 2007 3:30 PM