OCIA.net takes a look at the OCZ PC2-6400 SLI-Ready Dual Channel DDR2 Memory in their latest review

I want to take a moment and discuss the Enhanced Performance Profiles that are present on these modules. In a nutshell, if your are running an nForce SLI-based motherboard, the board will automatically detect the presence of EPP enhanced modules. These EPP modules are pre-programmed with advanced SPD (Serial Presence Detect) settings to boot at 800 MHz with timings of 4-4-4-15 1T. This is essentially a "noob" way to get the most out of your modules without having to fool with manually setting timings in the BIOS. Overclocking is slowly becoming more mainstream and this is yet another "automated" approach.

OCZ PC2-6400 SLI-Ready Dual Channel DDR2 Memory Review