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30 About Your System
Possible video card
failure.
See "Troubleshooting Expansion
Cards" on page 113.
Diskette drive or hard
drive failure.
Ensure that the diskette drive and
hard-drive are properly connected.
See "Installing a Hard Drive" on
page 67 for information on the
drives installed in your system.
Possible USB failure. See "Troubleshooting a USB Device"
on page 102.
No memory modules
detected.
See "Troubleshooting System
Memory" on page 108.
System board failure. See "Getting Help" on page 127.
Memory
configuration error.
See "Troubleshooting System
Memory" on page 108.
Possible system board
resource and/or
system board
hardware failure.
See "Troubleshooting IRQ
Assignment Conflicts" on page 98.
If the problem persists, see "Getting
Help" on page 127.
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