hey i currently have 1 gig of dual channel RAM (512 x 2) and i just bought another single stick of 1 gig. the thing is the single stick is faster than the 2 512 sticks. what i would like to know is does it matter which slots i put the ram in? like do certain slots get used first and then the others get used, because if thats the case i want the faster stick to be used primarily...for obvious reasons. or should i just stick it anywhere and it will be fine?