Gigabyte GA-P55A-UD6 User Manual page 43

 Advanced Memory Settings
CMOS Setup Utility-Copyright (C) 1984-2009 Award Software
Extreme Memory Profile (X.M.P.)
System Memory Multiplier
Memory Frequency (Mhz)
Performance Enhance
DRAM Timing Selectable
Profile DDR Voltage
Profile QPI Voltage
x Channel Interleaving
x Rank Interleaving
>>>>> Channel A
 Channel A Timing Settings
 Channel A Turnaround Settings
>>>>> Channel B
 Channel B Timing Settings
 Channel B Turnaround Settings
higf: Move Enter: Select
F5: Previous Values
Extreme Memory Profile (X.M.P.)
Allows the BIOS to read the SPD data on XMP memory module(s) to enhance memory performance
when enabled.
Disabled Disables this function. (Default)
Profile1 Uses Profile 1 settings.
Profile2 Uses Profile 2 settings.
(Note)
System Memory Multiplier (SPD)
Allows you to set the system memory multiplier. Auto sets memory multiplier according to memory SPD
data. (Default: Auto)
Memory Frequency(Mhz)
The first memory frequency value is the normal operating frequency of the memory being used; the
second is the memory frequency that is automatically adjusted according to the BCLK Frequency(Mhz)
and System Memory Multiplier settings.
Performance Enhance
Allows the system to operate at three different performance levels.
Standard Lets the system operate at its basic performance level.
Turbo Lets the system operate at its good performance level. (Default)
Extreme Lets the system operate at its best performance level.
DRAM Timing Selectable (SPD)
Quick and Expert allows the Channel Interleaving and Rank Interleaving items to be configurable.
Options are: Auto (default), Quick, Expert.
Profile DDR Voltage
When using a non-XMP memory module or Extreme Memory Profile (X.M.P.) is set to Disabled, this
item will display as 1.5V. When Extreme Memory Profile (X.M.P.) is set to Profile1 or Profile2, this
item will display the value based on the SPD data on the XMP memory.
(Note) This item appears only if you install a memory module that supports this feature.
Advanced Memory Settings
(Note) [Disabled]
(SPD) [Auto]
1333 1333
[Turbo]
(SPD) [Auto]
1.5V
1.15V
6 Auto
4 Auto
[Press Enter]
[Press Enter]
[Press Enter]
[Press Enter]
+/-/PU/PD: Value F10: Save
F6: Fail-Safe Defaults
(Note)
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Item Help
Menu Level 
ESC: Exit F1: General Help
F7: Optimized Defaults
BIOS Setup