Asus E510 Series User Manual page 119

The arrow keys on the number key pad are not working.
Check if the Number Lock LED is off. When the Number Lock LED is
on, the keys on the number key pad are used to input numbers only.
Press the Number Lock key to turn the LED off if you want to use the
arrow keys on the number key pad.
No display on the monitor.
• Check if the monitor is powered on.
• Ensure that your monitor is properly connected to the video
output port on your computer.
• If your computer comes with a discrete graphics card, ensure
that you connect your monitor to a video output port on the
discrete graphics card.
• Check if any of the pins on the monitor video connector is bent.
If you discover bent pins, replace the monitor video connector
cable.
• Check if your monitor is plugged to a power source properly.
• Refer to the documentation that came with your monitor for
more troubleshooting information.
When using multiple monitors, only one monitor has display.
• Ensure that the both monitors are powered on.
• During POST, only the monitor connected to the VGA port has
display. The dual display function works only under Windows.
• When a graphics card is installed on your computer, ensure that
you connect the monitors to the output port on the graphics
card.
• Check if the multiple displays settings are correct.
Mini Desktop PC User Guide
119