I've been wondering... Sometimes I get those one piece heatsinks on videocards that goes over both GPU and the rams with the GPU being tad higher so the manufacturers usually put some thermal pads over the ram chips to make sure contact is made. I usually take apart whatever new equipment I get and apply some artic silver to the heatsink. But, with the situation I discribed above, I usually wind up just putting a glob of artic silver on top of the ram chip and making sure there's contact between the artic and the heatsink. I know it's not an air tight seal like it is between the GPU and the heatsink. So, should I have just left the manufacturer's thermal pads? In some cases the space between the ram and the heatsink is 2 or 3 mms.