Gigabyte GA-7N400 Pro2 User Manual page 101

Is memory LED on and CPU fan running?
Check if there is display.
Turn off the system. Reboot after keyboard and mouse
have been plugged in.
Check if keyboard is working properly.
Press <Del> to enter BIOS setup. Choose "Load
Optimized Defaults" and save then exit setup.
Turn off the system and re-connect the IDE cable.
Check if the system can reboot successfully.
Reinstall Windows OS, and reinstall add-on cards and
cables. Then try to reboot the system.
If the above procedure unable to solve your problem, please contact with your local retailer or national
distributor for help. Or, you could submit your question to the service mail via Gigabyte website technical
support zone (http://www.gigabyte.com.tw). The appropriate response will be provided ASAP.
A
Yes
Yes
Yes
Yes
END
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The problem could
be caused by
power supply,
CPU, memory or
No
CPU/memory
socket itself.
Failure has been excluded.
Perhaps your VGA
No
card / VGA slot or
monitor is defective.
Failure has been excluded.
It is possible that
your keyboard or
No
keyboard connector
is defective.
Failure has been excluded.
The problem was
No
probably caused by
the IDE device /
connector or cable.
Failure has been excluded.
Appendix