Asus Maximus II Gene - Manual (Page 27)

2. Northbridge/Southbridge LEDs
The northbridge and southbridge LEDs each have two different voltage
displays. The northbridge LED displays either the NB Voltage or the FSB VTT
Voltage. The southbridge LED shows either the SB 1.1 Voltage or the SB 1.5
Voltage. You can select the voltage to display in BIOS. Refer to the illustration
below for the location of the northbridge/southbridge LEDs and the table
below for LED definition.
Normal (green) High (yellow) Crazy (red)
NB Voltage 1.10000–1.59025 1.60350–1.84200 1.85525–2.05400
FSB VTT 1.10000–1.40475 1.41800–1.60350 1.61675–2.00100
SB 1.1 Voltage 1.11341–1.60366 1.61691–1.85541 1.86866–2.00116
SB 1.5 Voltage 1.51106–1.61706 1.63031–1.81581 1.82906–2.05431
ROG Maximus II GENE 2-3