Troubleshooting Without Diagnostics

Solving Minor Problems

Solving Minor Problems
ProblemCausePossible Solution

Computer appears locked up and will not turn off when the power button is pressed.

Software control of the power switch is not functional.

1.Press and hold the power button for at least four seconds until the computer turns off.

2.Disconnect electrical plug from outlet.

Computer will not

Computer is in

Press the power button to resume from

respond to USB

standby mode.

standby mode.

keyboard or mouse.

 

 

ÄCAUTION: When attempting to resume from standby mode, do not hold down the power button for more than four seconds. Otherwise, the computer will shut down and you will lose your data.

Computer date and

RTC (real-time clock)

1.

Reset the date and time under

time display is incorrect.

battery may need to be

 

Control Panel.

 

replaced.

2.

Replace the RTC battery.

 

 

 

 

 

Computer appears to

Network driver is loaded

Establish a network connection, or

pause periodically.

and no network

use Computer Setup or Microsoft

 

connection is established.

Windows Device Manager to disable

 

 

the network controller.

 

 

 

Cursor will not move

The Num Lock key

Press the Num Lock key. The Num

using the arrow keys on

may be on.

Lock key can be disabled (or

the keypad.

 

enabled) in Computer Setup.

 

 

 

 

Poor performance is

Processor is hot.

1.

Ensure airflow to the computer is

experienced.

 

 

not blocked.

 

 

2.

Ensure the fans are connected

 

 

 

and working properly (some fans

 

 

 

only operate when needed).

 

 

3.

Ensure the processor heatsink is

 

 

 

installed properly.

 

 

 

 

Hard drive is full.

Transfer data from the hard drive to

 

 

create more space on the hard drive.

 

 

 

 

D–2

360201-002

Service Reference Guide, dc5000