Asus Crosshair V Formula/ThunderBolt - Manual (Page 45)

2.2.6. Onboard.LEDs
The motherboard comes with a set of LEDs that indicate the voltage conditions
of CPU, memory, northbridge and southbridge. You may adjust the voltages in
BIOS. There are also an LED for hard disk drive activity and an onboard switch for
power status. For more information about voltage adjustment, refer to 3.3 Extreme
Tweaker menu.
1.. CPU.LED
The CPU LED has three voltage displays: CPU Voltage, CPU/NB, and VDDA
Voltage 2.5V; you can select the voltage to display in BIOS. Refer to the
illustration below for the location of the CPU LED and the table below for LED
definition.
2.. Memory.LED
The Memory LED has two voltage displays: DDR and VDDR. Refer to the
illustration below for the location of the memory LED and the table below for
LED definition.
3.. Northbridge/Southbridge.LEDs
Northbridge and southbridge LEDs each have two different voltage displays.
The northbridge LED displays the NB voltage, the NB 1.8V voltage or the
VDDPCIE The southbridge LED shows either the SB voltage or the HT
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.
ROG Crosshair V Formula 2-15