OCIA.net has posted a review of the Thermalright SP-94 Heatsink.

Now we move on to the installation. As noted previously, the installation for the SP-94 is a little more involved than the SLK-947U. To install the SP-94, you must first remove the P4 retention bracket that most traditional P4 heatsinks use. With only a 20g increase in weight from the SLK-947U, I was really surprised it would require such a robust mounting system.

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