46 Chapter 5: Troubleshooting
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ENGLISH
Display
Problem Possible Cause Action
No display output 
after turning the 
computer on 
(Black screen)
The signal cable is not 
connected to the correct 
VGA port on your computer. 
•Connectthesignalcabletothecorrect
display port (onboard VGA or discrete 
VGA port). 
•IfyouareusingadiscreteVGAcard,
connect the signal cable to the discrete 
VGA port.
Signal cable problems Try connecting to another monitor.
LAN
Problem Possible Cause Action
Cannot access the 
Internet
The LAN cable is not 
connected.
Connect the LAN cable to your 
computer.
LAN cable problems
Ensure the LAN LED is on. If not, try 
another LAN cable. If it still does not 
work, contact the ASUS service center.
Your computer is not 
properly connected to a 
router or hub.
Ensure that your computer is properly 
connected to a router or hub.
Network settings
Contact your Internet Service Provider 
(ISP) for the correct LAN settings.
Problems caused by the anti-
virus software
Close the anti-virus software.
Driver problems Reinstall the LAN driver