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4-18 Chapter 4: BIOS setup
DDR Voltage [Auto]
You can enter the desired DDR2 voltage using the numeric keypad. The values
range from 1.80V to 2.50V with a 0.02V interval.
Refer to the DDR2 documentation before adjusting the memory voltage. Setting
a very high memory voltage may damage the memory module(s)!
Northbridge Voltage [Auto]
Allows you to set the Northbridge voltage. The following three items appear when
you set Northbridge Voltage to [Manual]. Conguration options: [Auto] [Manual]
HyperTransport Voltage [Auto]
Conguration options: [Auto] [1.20V] [1.30V] [1.40V] [1.50V]
Core/PCIe Voltage [Auto]
You can enter the desired Core/PCIe voltage using the numeric keypad. The
values range from 1.10V to 1.40V with a 0.02V interval.
NB PCIE PLL [Auto]
Conguration options: [Auto] [1.8V] [1.9V] [2.0V] [2.1V]
Southbridge Voltage [Auto]
You can enter the desired Southbridge voltage using the numeric keypad. The
values range from 1.20V to 1.40V with a 0.02V interval.
• Setting Processor Voltage, DDR Voltage, Core/PCIe Voltage and
Southbridge Voltage to a high level may damage the CPU, memory
module, and chipset permanently. Proceed with caution.
• Some values of the items mentioned above are labeled in different color,
indicating the risk levels of high voltage settings. Refer to the table below
for details.
• The system may require better cooling system to work stably under high
voltage settings.
Blue Yellow Pink Red
Processor Voltage
0.8000V~
1.6000V
N/A N/A
1.6125V~
1.7250V
DDR Voltage 1.80V~1.98V 2.00V~2.18V 2.20V~2.38V 2.40V~2.50V
Core/PCIe Voltage 1.10V~1.28V N/A N/A 1.30V~1.40V
Southbridge Voltage 1.20V~1.28V N/A N/A 1.30V~1.40V