Dell Precision 330 - Manual (Page 120)

120 Solving Problems
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• Connect the computer power cable directly to an electrical outlet to
ensure that the computer turns on. Do not connect it to a power
protection device, uninterruptible power supply (UPS), power strip, or
extension cord.
• Ensure that all power cables are firmly connected, verifying that each
power cable is adequately connected at the computer device and to
the electrical outlet.
• Check for interference: electrical appliances on the same circuit or
operating in close proximity to the computer can cause interference.
• Swap the power cables between the computer and the monitor to see
whether the problem symptoms change.
If the problem still exists after you complete the basic checks, fill out the
Diagnostics Checklist as you perform the following steps:
1 Turn off the computer and peripherals, and disconnect them from
their electrical outlets.
2 Wait approximately 30 seconds, and reconnect the computer and
peripherals to their electrical outlets.
3 Turn on the computer.
Does the power indicator on the front of the computer light up?
Yes. The problem is resolved.
No. The computer may be defective.
Contact Dell for technical
assistance.
Monitor Problems
The power indicator on the monitor communicates codes that can help you
determine whether there is a problem. The following table lists the codes
for the monitor power indicator. For more information, see the
documentation that came with your monitor.