Troubleshooting; Battery Problems; Card Problems - Dell OptiPlex 755 User Manual

Troubleshooting

Follow these tips when you troubleshoot your computer:
• If you added or removed a part before the problem started, review the installation procedures and
ensure that the part is correctly installed.
• If a peripheral device does not work, ensure that the device is properly connected.
• If an error message appears on the screen, write down the exact message. This message may help
support personnel diagnose and fix the problem(s).
• If an error message occurs in a program, see the program's documentation.
NOTE:
The procedures in this document were written for the Windows default view, so they may not apply if you
set your Dell™ computer to the Windows Classic view.

Battery Problems

CAUTION:
There is a danger of a new battery exploding if it is incorrectly installed. Replace the battery only
with the same or equivalent type recommended by the manufacturer. Discard used batteries according to the
manufacturer's instructions.
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the
Information Guide
.
R — If you have to repeatedly reset time and date information after turning on the computer,
E P L A C E T H E B A T T E R Y
or if an incorrect time or date displays during start-up, replace the battery (see "Replacing the Battery" on page 303).
If the battery still does not work properly, contact Dell (see "Contacting Dell" on page 370).

Card Problems

Fill out the "Diagnostics Checklist" on page 369 as you complete these checks.
CAUTION:
Before you begin any of the procedures in this section, follow the safety instructions in the
Information Guide
.
CAUTION:
To guard against electrical shock, always unplug your computer from the electrical outlet before
opening the cover.
NOTICE:
To prevent static damage to components inside your computer, discharge static electricity from your
body before you touch any of your computer's electronic components. You can do so by touching an unpainted
metal surface on the computer.
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Solving Problems
Product
Product