Acer Altos R480 F4 Manuel de l'utilisateur - Page 15
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3.
Reboot the system for the changes to take effect.
4.
If there are still no characters on the screen after you reboot the system, reboot it again.
Take note of the beep codes emitted during POST. This information may be required if
you seek technical assistance.
If POST does not emit any beep code and characters still do not appear, the display
monitor or the video controller may be defective. Contact your local Acer
representative or authorized dealer for technical assistance.
Note: If POST does not emit any beep code and characters still do not appear, the
display monitor or the video controller may be defective. Contact your local Acer
representative or authorized dealer for technical assistance.