The 1150 base were listed in the specification on the manufacturer's Web site, and in some stores. I can not leave you quite so: In my case it was necessary to drill into the backplate at 3 points (out peep end result of 3 behind the board (slightly different) screws). If this is not done, sits the backplate wrong and presses against the base mounting, which is unacceptable.
With some craftsmanship he sits now very well but cools and reliable. I have used the thermal grease that came with the cooler.
The problem may also occur in the 1155'er pedestals.
Therefore 1 star deduction, because otherwise he is very good and now is keeping stable.