Lockups And Software Problems - Dell OptiPlex 360 Service Manual

• 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
U N T H E A R D W A R E
page 135.

Lockups and Software Problems

WARNING:
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 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
CAUTION:
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.
A program stops responding
E
N D T H E P R O G R A M
Press <Ctrl><Shift><Esc> simultaneously to access the Task Manager.
1
Click the Applications tab.
2
Click to select the program that is no longer responding.
3
Click End Task.
4
146
Troubleshooting
— Connect a properly working keyboard to the computer, then
T
R O U B L E S H O O T E R
Before working inside your computer, read the safety information
— See "Power Lights" on page 123.
— If you are unable to get a response by pressing a key on
—
— See "Hardware Troubleshooter" on