In the spirit of this thread...
, I have my own mod to decouple the Zalman fan from the heat-sink. I wanted something that was:
1) Relatively cheap
2) No specialized skill
3) Easily "undone."
Note that I performed this mod before mounting the cooler to CPU, so I don't have any before and after analysis to give you. I can say that with the mod, I am not experiencing any of the vibration / noise issues that some others have been experiencing with the stock fan.
Materials I used:
1/4" Sorbothane, 40 ODO
1/8" Sorbothane, 40 ODO
2, 1/2" #2 self-tapping sheet metal screws
The "small" screws in the picture are the original fan screws that come with the cooler, they are replaced with longer ones for reasons which will be obvious. For those that don't know, the metal bracket next to the fan is the mounting bracket.
First, I cut the 1/4" sorbothane (which will sit between the fan and the bracket) into stips that match the bracket. I could have just cut one large "square", but I wanted to keep airflow as close to the original design as possible, to minimize any chance of a negative impact on air flow. I also cut two "ghetto washers" out of the 1/8" sorbothane, which will be used to decouple the srew head from the metal bracket:
In order to "push" the screws through the sorbothane, I found it helps to poke a pilot hole completely though the sorbothane with a pin first. Here you can see the screw+metal washer+sorbothane "washer" assembly:
Now just remount the fan using the screw assembly, though the bracket and sorbothane, and self-tapped into the fan:
And that's all she wrote!