Are ram heatspreaders really necessary? Or is it just for overclocking? Im probably gonna get another gig of ram. im debating whether or not to get 2 sticks or 1. i wanna get the cheapest price, but the same performance. Id like to stay with PQI, im not sure if it matters if i get a diff brand. PQI seems ok. i kinda want one stick incase i upgrade later, and a stick w/out the heatspreader is cheaper, so i have no idear! any input?