ASROCK Z68 Pro3 Gen3 User Manual page 51

PCI Legacy Mode
This allows you to enable or disable PCI Legacy Mode. The default value
is [Enabled].
Good Night LED
Enable this option to turn off Power LED and Port80 LED when the system
is power on. The keyboard LED will also be turned off in S1, S3 and S4
state. The default value is [Auto].
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