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Table F-1
Solving General Problems (continued)
Poor performance.
Cause
Virus resident on the hard drive.
Too many applications running.
Some software applications, especially games, are stressful
on the graphics subsystem.
Cause unknown.
Computer powered off automatically and the Power LED flashes Red two times, once every second, followed by a
two second pause, and the computer beeps two times. (Beeps stop after fifth iteration but LEDs continue flashing).
Cause
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heat sink is not properly attached to the processor.
Solution
Run virus protection program.
Windows 7:
1.
Close unnecessary applications to free up memory.
2.
Add more memory.
3.
Some applications run in the background and can be
closed by right-clicking on their corresponding icons in
the task tray. To prevent these applications from
launching at startup:
In Windows 7:
a.
Go to Start > All Programs > Accessories > Run
b.
Type msconfig, and then press Enter.
c.
On the Startup tab of the System Configuration
Utility, clear applications that you do not want to
launch automatically, and the click OK.
1.
Lower the display resolution for the current application
or consult the documentation that came with the
application for suggestions on how to improve
performance by adjusting parameters in the application.
2.
Add more memory.
3.
Upgrade the graphics solution.
Restart the computer.
Solution
1.
Ensure that the computer air vents are not blocked and
the processor cooling fan is running.
2.
Open the access panel, press the power button, and
see if the processor fan (or other system fan) spins. If
the fan does not spin, make sure the fan cable is
plugged onto the system board header.
3.
If fan a plugged in and not spinning, replace it.
Solving General Problems
85
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