User Manual

Onboard LEDs
The motherboard comes with 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: Vcore voltage, CPU PLL 1.8
voltage, and QPI/DRAM Core voltage 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.
Normal (green) High (yellow) Crazy (red)
VCore 0.85–1.5 1.50625–1.59375 1.6–
CPU PLL 1.8V 1.20375–1.89475–1.89475 1.90800–1.94775–1.94775 1.961––
QPI/DRAM Core 1.2–1.39375 1.4–1.69375 1.7–
2-2 Chapter 2: Hardware information