Normal
Soldering would yield the best temperatures, but thermal paste might make future upgrades a lot easier.I think you are mistake what that heatsink does, it's meant to attach a lot of heatpipes to the wall of the H5 case and passively vent the heat out. That heatsink on you link doesn't have a real cooling function, maybe 5-10W or so, that heatsink also makes it 2 slot. But take out a dremel and you might have a single slot solution, but you do need to have a good heatsink to attach the heatpipes to.
Soldering would yield the best temperatures, but thermal paste might make future upgrades a lot easier.
I think you are mistake what that heatsink does, it's meant to attach a lot of heatpipes to the wall of the H5 case and passively vent the heat out. That heatsink on you link doesn't have a real cooling function, maybe 5-10W or so, that heatsink also makes it 2 slot. But take out a dremel and you might have a single slot solution, but you do need to have a good heatsink to attach the heatpipes to.
