Dell OptiPlex 360 (Late 2008) - Manual (Page 146)

146 Troubleshooting
• 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
— Connect a properly working keyboard to the computer, then
try using the keyboard.
R
U N T H E
H
A R D W A R E
T
R O U B L E S H O O T E R
— See "Hardware Troubleshooter" on
page 135.
Lockups and Software Problems
WARNING: Before working inside your computer, read the safety information
that shipped with your computer. For additional safety best practices information,
see the Regulatory Compliance Homepage at
www.dell.com/regulatory_compliance.
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 TS
— See "Power Lights" on page 123.
E
N S U R E T H A T T H E P O WE R CA BLE I S F I R M L Y CO N N E C T E D T O T H E C O M PU T E R A N D T O
T H E E L E CT R I C A L O U T L E T
The computer stops responding
CAUTION: You may lose data if you are unable to perform an operating system
shutdown.
T
U RN T H E CO M P U T E R O F F
— If you are unable to get a response by pressing a key on
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.
A program stops responding
E
N D T H E P RO G RA M
—
1 Press simultaneously to access the Task Manager.
2 Click the Applications tab.
3 Click to select the program that is no longer responding.
4 Click End Task.