Compaq 315eu Maintenance and Service Guide - Compaq 100eu Small Form Factor, 1 - Page 180

Device Manager

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New device does not work. Cause Solution You may need to be logged in as the computer administrator to install or uninstall a device driver. To switch users, click Start, click Log Off, and then click Switch User; log in as the computer administrator and install the driver. New or existing device does not work after installing a new device. Cause Solution There is a conflict with an existing device. To resolve a device conflict, you may need to disable one of the devices or uninstall an old device driver: 1. Click Start, and click Control Panel. 2. Click Hardware and Sound. 3. Click Device Manager. 4. Click the plus sign (+) next to the problem device and check for exclamation points in a yellow circle near the device icon. The exclamation point means there is a device conflict or problem with the device. Exclamation points do not always appear when a device is not working properly. 5. If there is an old or unnecessary device driver listed in the Device Manager, this may be causing the device conflict. To uninstall the old driver for the new device driver to work properly, right-click the device, click Uninstall, and then click OK. 6. Right-click the device, and select Properties. 7. If available, click the Resources tab to verify that there is a device conflict. 8. Click the General tab to see if your device is enabled and working properly. If it is available, click the Troubleshoot button, and follow the onscreen instructions in the device troubleshooter wizard. 9. Restart the computer. 170 Chapter 11 Troubleshooting Without Diagnostics

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New device does not work.
Cause
Solution
You may need to be logged in as the computer administrator
to install or uninstall a device driver.
To switch users, click
Start
, click
Log Off
, and then click
Switch User
; log in as the computer administrator and install
the driver.
New or existing device does not work after installing a new device.
Cause
Solution
There is a conflict with an existing device.
To resolve a device conflict, you may need to disable one of
the devices or uninstall an old device driver:
1.
Click
Start
, and click
Control Panel
.
2.
Click
Hardware and Sound
.
3.
Click
Device Manager
.
4.
Click the plus sign (
+
) next to the problem device and
check for exclamation points in a yellow circle near the
device icon. The exclamation point means there is a
device conflict or problem with the device. Exclamation
points do not always appear when a device is not
working properly.
5.
If there is an old or unnecessary device driver listed in
the Device Manager, this may be causing the device
conflict. To uninstall the old driver for the new device
driver to work properly, right-click the device, click
Uninstall
, and then click
OK
.
6.
Right-click the device, and select
Properties
.
7.
If available, click the
Resources
tab to verify that there
is a device conflict.
8.
Click the
General
tab to see if your device is enabled
and working properly. If it is available, click the
Troubleshoot
button, and follow the onscreen
instructions in the device troubleshooter wizard.
9.
Restart the computer.
170
Chapter 11
Troubleshooting Without Diagnostics