Asus P5QL Manual page 53

Memory Voltage [Auto]
Allows you to set the memory voltage manually or Auto. Use the <+> and <-> keys to adjust
the value. The value ranges from 1.80V to 2.20V with a 0.10V interval.
North Bridge Voltage [Auto]
Allows you to set the NB voltage manually or Auto. Use the <+> and <-> keys to adjust the
value. The value ranges from 1.10V to 1.40V with a 0.10V interval.
Setting a very high voltage may damage the component permanently, and setting a very
low voltage may cause the system to become unstable.
South Bridge Voltage [Auto]
Allows you to set the SB voltage. The value ranges from 1.50V to 1.70V with a 0.20V interval.
CPU GTL Reference [Auto]
Allows you to set the CPU GTL voltage reference. Configuration options: [Auto] [0.667x]
[0.65x] [0.63x] [0.615x]
CPU Spread Spectrum [Auto]
Allows you to set the CPU spread spectrum. Configuration options: [Auto] [Disabled]
PCIE Spread Spectrum [Auto]
Allows you to set the PCIE spread spectrum. Configuration options: [Auto] [Disabled]
CPU Clock Skew [Auto]
Allows you to set the CPU clock skew. Configuration options: [Auto] [Normal] [Delay 75ps]
[Delay 150ps] [Delay 225ps] [Delay 300ps] [Delay 375ps] [Delay 450ps] [Delay 525ps]
[Delay 600ps] [Delay 675ps] [Delay 750ps] [Delay 825ps] [Delay 900ps] [Delay 975ps]
[Delay 1050ps] [Delay 1100ps]
NB Clock Skew [Auto]
Allows you to set the NB clock skew. Configuration options: [Auto] [Normal] [Delay 75ps]
[Delay 150ps] [Delay 225ps] [Delay 300ps] [Delay 375ps] [Delay 450ps] [Delay 525ps]
[Delay 600ps] [Delay 675ps] [Delay 750ps] [Delay 825ps] [Delay 900ps] [Delay 975ps]
[Delay 1050ps] [Delay 1100ps]
CPU Margin Enhancement [Optimized]
Configuration options: [Optimized] [Compatible]
ASUS P5QL 2-15