Acer Altos R720 Series User Manual download pdf (Page 153)

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• Network might be idle. Try accessing the server.

Server hangs when the drivers are loaded.

Change the PCI interrrupt settings.

There is problem with the application software.

Do the following:

• Verify that the software is properly configured for the system.

Refer to the software installation and operation documentation

for instructions on setting up and using the software.

• Try a different version of the software to see if the problem is with

the copy you are using.

• Make sure all cables are properly connected.

• If other software runs correctly on the system, contact your vendor

about the defective software.

No characters appear on the screen.

Check the following:

• Is the keyboard functioning? Test it by turning the “Num Lock”

function on and off to make sure the Num Lock light is

functioning.

• Is the video monitor plugged in and turned on? If you are using a

switch box, is it switched to the correct system?

• Are the brightness and contrast controls on the video monitor

properly adjusted?

• Is the video monitor signal cable properly installed?

• Does this video monitor work correctly if plugged into a different

system?

• Is the onboard video controller enabled in the BIOS setup?

• Remove all expansion cards and see if the system boots. If

successful, add the cards back in one at a time with a reboot

between each addition.

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Acer Altos R720 Series User Manual Page 153