What are people's opinions or experiences on the M.2 heatsinks from EK? I have 2 M.2's in my system but only one has a heat sink which sits at around 60 degrees (boot drive) and the other one which is in the bottom of the 3 slots around 68 degree's. I don't think it helps having my GPU mounted vertically so thought about trying a heatsink to bring temps down a little.