Asus MAXIMUS EXTREME User Manual page 100

DRAM Voltage [Auto]
Allows you to select the DRAM voltage. The text color in the configuration field
corresponds to the onboard memory LED color, both of which indicate voltage
condition. Refer to page 2-2 for memory LED definition.
Configuration options: [Auto] [1.50V] [1.52V] [1.54V] ~ [3.00V] [3.02V] [3.04V]
FSB Termination Voltage [Auto]
Allows you to select the front side bus (FSB) termination voltage. The text
color in the configuration field indicates voltage condition. When you set the
NB LED Selection item to [FSBT Volt], the onboard northbridge LED displays
FSB termination voltage condition. Refer to page 2-2 for northbridge LED
definition. Configuration options: [Auto] [1.20V] [1.22V] [1.24V] [1.26V] [1.28V]
[1.30V]~[1.90V] [1.92V] [1.94V] [1.96V] [1.98V] [2.00V]
Setting a high FSB termination voltage may damage the chipset and CPU.
South Bridge Voltage [Auto]
Allows you to select the southbridge voltage. The text color in the configuration
field indicates voltage condition. When you set the SB LED Selection item to [SB
Volt], the onboard southbridge LED displays southbridge voltage condition. Refer
to page 2-2 for southbridge LED definition.
Configuration options: [Auto] [1.050V] [1.075V] [1.110V] [1.125V] [1.150V] [1.175V]
[1.200V] [1.225V]
Loadline Calibration [Auto]
Enables or disables Loadline Calibration.
Configuration options: [Auto] [Disabled] [Enabled]
CPU GTL Reference [Auto]
Allows you to set the CPU GTL reference.
Configuration options: [Auto] [0.63x] [0.61x] [0.59x] [0.57x]
North Bridge GTL Refernece [Auto]
Configuration options: [Auto] [0.67V] [0.63V] [0.60V] [0.57V] [0.56V] [0.53V] [0.51V]
[0.49V]
DDR3 Channel A REF Voltage [Auto]
Allows you to manually set the memory voltage, or you can set to [Auto] for the
safe mode.
Configuration options: [DDR3_REF-30mv] [DDR3_REF-20mv] [DDR3_REF-10mv]
[DDR3_REF] [DDR3_REF+10mv] [DDR3_REF+20mv] [DDR3_REF+30mv]
4-22 Chapter 4: BIOS setup