During the installation, the cooler is tightened to the backplate with four spring screws. It is pressed against the processor heat-spreader very firmly, so you shouldn’t worry about the secure contact: if the heat-spreader is even, everything will be perfect. However, APACK ZEROtherm CF900 installation does have a few disadvantages: limited compatibility with existing mainboards. The thing is that heatsinks on the mainboard chipset or power components of the voltage regulator circuitry may hit against the heatpipes coming out of the cooler base. For example, if you have an ASUS P5K Deluxe, then you can only install APACK ZEROtherm CF900 facing one way: with the heatpipe curve facing the memory modules:
Unfortunately, the cooler wouldn’t fit onto this board facing any other way. But if APACK ZEROtherm CF900 does fit onto your mainboard, the blue fan highlighting may make up for the above described drawback:
APACK ZEROtherm CF900 is currently priced at $39.99.