Performance Memory Profiles - Intel DP55KG Performance Tuning Manual

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Intel Desktop Board DP55KG and Intel
Setup Option
Note: All multiplier values listed below are applied to the single 133 MHz
(default) host clock.
Performance Memory
Profiles
Uncore Multiplier
Memory Multiplier
tCL
tRCD
tRP
tRASmin
tRFC
tRRD
tWR
tWTR
tRTP
20
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Performance Tuning Guide
Table 2. Performance Memory Profiles
Memory Performance Options
Automatic setting uses default values provided by
the memory module.
Manual mode allows the user to change each of the
settings.
If the installed memory module supports XMP, there
will be additional selections for each profile stored in
the module. Selecting a profile will populate all the
settings with those recommended by the
manufacturer.
Sets the Uncore CPU multiplier. This is
non-adjustable for Intel Core i7 and Intel Core i5
processors. It is shown for information purposes.
Sets the memory multiplier provided by the on die
memory controller of the installed processor.
CAS Latency: The amount of time in cycles between
sending a read command and the time to act on it.
RAS to CAS Delay: The amount of time in cycles for
issuing an active command and the read/write
commands.
RAS Precharge Time: This is the minimum time
between active commands and the read/writes of the
next bank on the memory module.
Minimum RAS Active Time: The amount of time
between a row being activated by precharge and
deactivated.
RAS Refresh Cycle Timing: This determines the
amount of cycles to refresh a row on a memory bank.
RAS to RAS Delay: The amount of cycles that it
takes to activate the next bank of memory.
Write Recover Time: The amount of cycles that are
required after a valid write operation and precharge.
Write to Read Delay: The amount of cycles required
between a valid write command and the next read
command.
Read to Precharge Delay: The minimum delay prior
to when a Read can occur.
Desktop Board DP55SB Extreme Series
Description