Ok. Here it is. I have CORSAIR XMS2 2 gigs DDR2-800 currently installed. I was manually setting the timings on it the other day and i bumped into this feature. " Memory remap feature". I did some reading and it says that if I am going to four gigs , which I am If I enable this it will give me better performance. Whats the scoop? Asus P5b deluxe and a conroe 2.4. My OS is XP 32 bit.