Gigabyte GA-H81M-S2PH, User Manual

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Advanced Memory Settings
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Extreme Memory Profile (X.M.P.)
(Note)
, System Memory Multiplier, Memory Frequency(MHz)
The settings above are synchronous to those under the same items on the Advanced Frequency Settings
menu.
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Memory Enhancement Settings
Provides three different memory performance enhancement settings: Normal (basic performance), Enhanced
Stability, and Enhanced Performance. (Default: Normal)
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Memory Timing Mode
Manual and Advanced Manual allows the Channel Interleaving , Rank Interleaving , and memory timing
settings below to be configurable. Options are: Auto (default), Manual, Advanced Manual.
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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 1.50V . 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.
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Channel Interleaving
Enables or disables memory channel interleaving. Enabled allows the system to simultaneously access
different channels of the memory to increase memory performance and stability. Auto lets the BIOS
automatically configure this setting. (Default: Auto)
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Rank Interleaving
Enables or disables memory rank interleaving. Enabled allows the system to simultaneously access different
ranks of the memory to increase memory performance and stability. Auto lets the BIOS automatically
configure this setting. (Default: Auto)
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Extreme Memory Profile (X.M.P.)
(Note)
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
(Note)
Uses Profile 2 settings.
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System Memory Multiplier
Allows you to set the system memory multiplier. Auto sets memory multiplier according to memory SPD
data. (Default: Auto)
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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 System Memory Multiplier settings.
(Note) This item is present only when you install a CPU and a memory module that support this feature.
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Channel A/B Memory Sub Timings
This sub-menu provides memory timing settings for each channel of memory. This sub-menu provides memory
timing settings for each channel of memory. The respective timing setting screens are configurable only when
Memory Timing Mode is set to Manual or Advanced Manual . Note: Your system may become unstable or fail
to boot after you make changes on the memory timings. If this occurs, please reset the board to default values
by loading optimized defaults or clearing the CMOS values.
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Advanced Voltage Settings
This sub-menu allows you to set CPU, chipset and memory voltages.