New
#851
The XMP sets the RAM to it's recommeded settings, should be the timings and voltage that is printed on the package or sticks themselves.
It won't change anything else.
Here's some info on DDR3 and XPM
Intel Corporation officially introduced the eXtreme Memory Profile (XMP) Specification on March 23, 2007 to enable enthusiast performance extensions to the traditional JEDEC SPDspecifications for DDR3 SDRAM.
Congrats Mattz, have fun, your going to like it