Dell Precision Workstation T3400 Guide De Référence Rapide page 51

Keyboard Problems
CAUTION:
Before you begin any of the procedures in this section, follow the
safety instructions in the
C
H E C K T H E K E Y B O A R D C A B L E
• Ensure that the keyboard cable is firmly connected to the computer.
• Shut down the computer (see "Turning Off Your Computer" in your User's Guide),
reconnect the keyboard cable as shown on the setup diagram for your computer, and
then restart the computer.
• Ensure that the cable is not damaged or frayed and check cable connectors for bent or
broken pins. Straighten any bent pins.
• Remove any keyboard extension cables and connect the keyboard directly to the
computer.
T
E S T T H E K E Y B O A R D
try using the keyboard.
R H
UN THE ARDWARE
Lockups and Software Problems
CAUTION:
Before you begin any of the procedures in this section, follow the
safety instructions in the
The computer does not start up
C
H E C K T H E D I A G N O S T I C L I G H T S
E
N S U R E T H A T T H E P O W E R C A B L E I S F I R M L Y C O N N E C T E D T O T H E C O M P U T E R A N D T O
T H E E L E C T R I C A L O U T L E T
The computer stops responding
NOTICE:
You may lose data if you are unable to perform an operating system
shutdown.
T
U R N T H E C O M P U T E R O F F
your keyboard or moving your mouse, press and hold the power button for at least 8 to
10 seconds (until the computer turns off), and then restart your computer.
Product Information Guide
—
— Connect a properly working keyboard to the computer, then
— See "Hardware Troubleshooter" on page 41.
T
ROUBLESHOOTER
Product Information Guide
— See "Diagnostic Lights" on page 33.
— If you are unable to get a response by pressing a key on
.
.
Quick Reference Guide
51