Performance Tuning Guide

Intel

Desktop Board DP55KG and Intel

Desktop Board DP55SB Extreme Series

5.4. Using XMP Profiles

XMP memory profiles can be invoked by selecting them from the Memory Configuration page

(Figure 11).

Figure 11. Selecting XMP Profiles

Note: It has been found during testing that earlier XMP memory modules that work correctly

with the socket 1366 Intel Core i7-900 processor series have a higher (Uncore Voltage

Override) voltage and do not perform as well at the higher voltage when used with the socket

1156 Intel Core i7-800 and Intel Core i5-700 processor series. It is recommended to manually

adjust the Uncore voltage to a starting value of 1.35 V or lower if these memory modules are

used (see Figure 12).

Note: It is very important to check the memory voltage (see Figure 12) after applying the

profile to ensure that the DIMM has not selected a memory voltage above the recommended

processor memory controller voltage limit. If it has, switch the profile setting to “Manual – User

Defined” and reduce the voltage to avoid damage to the processor.