It was the original Asus AM3 standard backplate, if I hadn't been building a new system I would have been able to install the Coolit without removing the motherboard.
I had been using the earlier Corsair unit with the outside pump/resourvoir unit on my previous systems but for £40 I thought the Coolit would be a much neater option, and they had been running 24/7 for about 4 years.
The Coolit CPU pump housing is a low profile unit and looks better designed and more professional looking than similar units we have previously seen from other manufactures, however they are all using similar types of pump which appear to be incredibly reliable and effective.