I collect retro hardware and own two Fujitsu Celsius R610 workstations which I'm willing to upgrade. I want to upgrade the CPUs from 2.4GHz to 3.2GHz but the manual states that for a 3.2GHz processor, a cover with an air hose is required. Unfortunately, I do have the coolers like the ones in the picture, but don't have the covers and air hose. Can someone explain how important they are and why they are needed? I have attached an image of the part of the manual that states this.