I would like to share with you my recent experience of modding a Scythe Kabuto II CPU cooler to fit it on socket G34 (for AMD Opteron 6000 series). As some of you may already know, G34 coolers are extremely rare. The only options other than industrial (i.e., noisy) solutions are Noctua's NH-U9DO A3 and NH-U12DO A3. By far, people have figured out how to mod the popular Cooler Master Hyper 212 Plus/Evo into a G34 compatible one. Here, I found an alternative solution, which may have wider applicability. It should work for many coolers from Scythe and other brands (e.g., Zalman).
Here is a Scythe Kabuto II cooler. Kabuto means "helmet". As you can see it is the top-down design, which keeps it merely 130mm tall yet with a 120mm fan. I chose it not only because of its height, but also expected it to blow RAMs and mosfets on my dual Opteron server motherboard H8DGU, which, like most server boards, has little to no onboard heat dissipation devices.
The base of the heatsink and the clips for mounting the heatsink on to an Intel motherboard.
The G34 pin hole spacing is pretty wide: 104 mm, and the board surface is pretty crowded, thus there is not much space for extended tricks.
I worked a little bit on the clips. Here is how:
First you need to remove the pins from the clip. Now you get a bare clip.
Then you need a Dremel. (Since you are browsing this forum, I bet you have one.)
Cut the clip into two smaller pieces:
Easy isn't it?
Then screw them back to the heatsink base:
All you need to do for the rest is to screw this whole thing on to the motherboard, using a pair of #6-32 machine screws (with bolts for spacing). Either 3/8 or 1/2 inch screws should work perfectly.
See how it looks like!
One extra advantage of Kabuto over Hyper 212 and likes is that it won't interfere with power cables.
Add another one!
I hope you find this tutorial useful!