Dell Precision 330 User's Guide - Page 168
Indicator Pattern, Cause, Action, Possible USB failure
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www.dell.com | support.dell.com Back-Panel Diagnostic Indicator Codes (continued) Indicator Pattern Cause Possible memory failure Action Perform the procedure in "System Memory Problems." Possible expansion card failure or conflict Possible video card failure Possible diskette drive or hard drive failure Perform the procedure in "Expansion-Card Problems" and see "Hardware Conflicts." Reseat the video card, and restart the system to retest. For instructions on removing and replacing an expansion card, see "Removing an Expansion Card." If the problem is still not resolved, contact Dell for technical assistance. Perform the procedures in "Diskette Drive Problems" and "Hard Drive Problems." Possible USB failure Possible system board resource and/or hardware failure Disconnect all USB devices and cables, and restart the system to retest. Then reconnect all USB devices and cables, and restart the system to retest. If the problem is still not resolved, contact Dell for technical assistance. Perform the procedure in "System Board Problems" and see "Hardware Conflicts." 168 So lv ing Pr o ble m s