Asus Maximus III Formula - Manual (Page 30)

Onboard LEDs
The motherboard comes with LEDs that indicate the voltage conditions of CPU,
memory, and PCH. 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 PLL, and IMC
�oltage; 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
Refer to the illustration below for the location of the memory LED and the
table below for LED definition.
3. PCH LED
The PCH LED shows the PCH Voltage. Refer to the illustration below for the
location of the PCH LED and the table below for LED definition.
Normal (green) High (yellow) Crazy (red)
CPU Voltage (default) 0.85–1.4 1.40625–1.54375 1.55–
CPU PLL
1.60325–2.00075
(79h–97h)
2.014–2.10675
(98h–9Fh)
2.12–
(A0h–)
IMC
1.007–1.3515
(4Ch–66h)
1.36475–1.60325
(67h–79h)
1.6165–
(7Ah–)
Normal (green) High (yellow) Crazy (red)
DRAM Bus Voltage
1.3515–1.60325
(66h–79h)
1.6165–1.78875
(7Ah–87h)
1.80200–
(88h–)
Normal (green) High (yellow) Crazy (red)
PCH Voltage
1.007–1.15275
(4Ch–57h)
1.166–1.20575
(58h–5Bh)
1.219–
(5Ch–)
2-2 Chapter 2: Hardware information