Dell Precision 330 - Manual (Page 182)

182 Getting Help
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Returns that are missing any of the preceding requirements will be refused
at our receiving dock and returned to you.
Before You Call
NOTE: Have your Express Service Code ready when you call. The code helps
Dell’s automated-support telephone system direct your call more efficiently.
Remember to fill out the Diagnostics Checklist below. If possible, turn on
your system before you call Dell for technical assistance and call from a
telephone at or near the computer. You may be asked to type some
commands at the keyboard, relay detailed information during operations, or
try other troubleshooting steps possible only at the computer system itself.
Ensure that the system documentation is available.
CAUTION: Before servicing any components inside your computer,
see " Safety First—For You and Your Computer ."