Compaq dx7500 Troubleshooting Guide - Page 18

Troubleshooting Without Diagnostics, Solving General Problems continued

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Table 2-1 Solving General Problems (continued) Poor performance is experienced. Cause Solution (Windows Vista) and type msconfig. On the Startup tab of the System Configuration Utility, clear applications that you do not want to launch automatically. 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. System does not power on. Cause System unable to power on. Solution Press and hold the power button for less than 4 seconds. If the hard drive LED turns green, then: 1. Check that the voltage selector, located on the rear of the power supply on some models, is set to the appropriate voltage. Proper voltage setting depends on your region. 2. Remove the expansion cards one at a time and see if the system powers on. 3. Replace the system board. OR Press and hold the power button for less than 4 seconds. If the hard drive LED does not turn on green then: 1. Check that the unit is plugged into a working AC outlet. 2. Open hood and check that the power button harness is properly connected to the system board. 3. Check that both power supply cables are properly connected to the system board. 4. Replace the power button harness. 5. Replace the power supply. 6. Replace the system board. 12 Chapter 2 Troubleshooting Without Diagnostics ENWW

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Poor performance is experienced.
Cause
Solution
(Windows Vista) and type
msconfig
. On the
Startup
tab
of the System Configuration Utility, clear applications that
you do not want to launch automatically.
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.
System does not power on.
Cause
Solution
System unable to power on.
Press and hold the power button for less than 4 seconds. If the
hard drive LED turns green, then:
1.
Check that the voltage selector, located on the rear of the
power supply on some models, is set to the appropriate
voltage. Proper voltage setting depends on your region.
2.
Remove the expansion cards one at a time and see if the
system powers on.
3.
Replace the system board.
OR
Press and hold the power button for less than 4 seconds. If the
hard drive LED does not turn on green then:
1.
Check that the unit is plugged into a working AC outlet.
2.
Open hood and check that the power button harness is
properly connected to the system board.
3.
Check that both power supply cables are properly
connected to the system board.
4.
Replace the power button harness.
5.
Replace the power supply.
6.
Replace the system board.
Table 2-1
Solving General Problems (continued)
12
Chapter 2
Troubleshooting Without Diagnostics
ENWW