Asus Crosshair III Formula - Manual (Page 31)

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 NB
1.8 Voltage. The southbridge LED shows either the SB Voltage, SB 1.2V
Voltage, or the HT. 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 1.11300–1.59000 1.60325–1.84175 1.85500–2.05400
NB 1.8 Voltage 1.80200–1.89475 1.90800–1.94775 1.96100–3.00775
SB 1.1V Voltage 1.20575–1.59000 1.60325–1.84175 1.85500–2.00075
SB 1.2V Voltage 120575–1.35150 –1.35150 1.36475–1.49725 1.51050–1.60325
HT 1.20575–1.39125 1.40450–1.65625 1.66950–2.00075
ROG Crosshair III Formula 2-3