I have a Proliant 5500 Xeon which currently has a pair of SL3CF (2Mb
cache) 550MHz Xeon's. In the UK it's proving difficult to find this
stepping and those which I am finding are equipped with 7000/8500
series heatsinks with fins.

Is it possible to remove this style of heatsink and replace it with
the version suitable for the 5500 server?

Regards,
TH.