Intel DZ77GA-70K / DZ77RE-75K Desktop Board Performance Tuning Guide
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3.6.5 Performance Tuning Memory
A wide variety of memory timing parameters can be adjusted in the BIOS setup as
described in the sections below. See Appendix B for a summary description of
memory settings and their effects.
In addition, DIMM socket population will also affect system performance. Intel
Desktop Board DZ77GA-70K has two independent memory channels which are
indicated by blue or black memory DIMM sockets. For best performance, all sockets
should be populated with memory matched by manufacturer, size, speed, and type.
This matching allows the processor to access data across each of the memory channels
concurrently. When installing memory, insert memory in the blue DIMM connectors
first. If more than two memory modules will be installed, install the additional
memory in the black DIMM connectors.
3.6.5.1 XMP Memory Profiles
Although each memory parameter can be modified individually, the easiest method of
optimizing performance is to use memory that supports Extreme Memory Profiles
(XMP). These profiles are pre-programmed by the manufacturer into the memory
module itself and can be selected from the XMP profile list as shown in Figure 3.7.
These profiles are validated by the manufacturer and are optimized for both
performance and system stability. The listed XMP profiles will vary depending on the
memory being used.
CAUTION
Operating memory at voltages higher than JEDEC approved 1.5 volts may reduce
processor life.
Figure 3.7. Selection of XMP 1600 Profile Using the BIOS Menu
3.6.5.2 Memory Performance Options
The Memory Configuration BIOS page contains all the memory timing options that can
be adjusted.
NOTE
For each of the timings, except the multipliers, lower number settings correspond with
higher performance and potential memory system instability.
Comment [wpm1]: Isn’t it truer to
say it WILL affect the life of the CPU
and extreme voltage will cause the
processor to fail…
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