HP Dc5700 Troubleshooting Guide - Page 18

Troubleshooting Without Diagnostics, Solving General Problems continued - memory upgrade

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Table 2-1 Solving General Problems (continued) Poor performance is experienced. Cause Too many applications running. Solution 1. Close unnecessary applications to free up memory. 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, go to Start > Run (Windows XP) or Start > Accessories > Run (Windows Vista) and type msconfig. On the Startup tab of the System Configuration Utility, uncheck applications that you do not want to launch automatically. CAUTION: Do not prevent applications from launching at startup that are required for proper system operation. 2. Add more memory. Some software applications, especially games, are stressful on the graphics subsystem 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. Cause unknown. Restart the computer. 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 Solution Processor thermal protection activated: A fan may be blocked or not turning. OR The heatsink is not properly attached to the processor. 1. Ensure that the computer air vents are not blocked and the processor cooling fan is running. 2. Open hood, press power button, and see if the processor fan spins. If the processor fan is not spinning, make sure the fan's cable is plugged onto the system board header. 3. If fan is plugged in, but is not spinning, then replace the heatsink/fan assembly. 4. Contact an authorized reseller or service provider. 12 Chapter 2 Troubleshooting Without Diagnostics ENWW

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Poor performance is experienced.
Cause
Solution
Too many applications running.
1.
Close unnecessary applications to free up memory.
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, go to
Start
>
Run
(Windows XP) or
Start
>
Accessories
>
Run
(Windows Vista) and type
msconfig
. On the
Startup
tab of the System
Configuration Utility, uncheck applications that you do not
want to launch automatically.
CAUTION:
Do not prevent applications from
launching at startup that are required for proper
system operation.
2.
Add more memory.
Some software applications, especially games, are stressful
on the graphics subsystem
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.
Cause unknown.
Restart the computer.
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
Solution
Processor thermal protection activated:
A fan may be blocked or not turning.
OR
The heatsink is not properly attached to the processor.
1.
Ensure that the computer air vents are not blocked and
the processor cooling fan is running.
2.
Open hood, press power button, and see if the processor
fan spins. If the processor fan is not spinning, make sure
the fan's cable is plugged onto the system board header.
3.
If fan is plugged in, but is not spinning, then replace the
heatsink/fan assembly.
4.
Contact an authorized reseller or service provider.
Table 2-1
Solving General Problems (continued)
12
Chapter 2
Troubleshooting Without Diagnostics
ENWW