[fhorst]

One thing I did like about this small cooler, it the fact that they used the waterblock as pump impeller housing. No serious. Think of it. The impeller moves the water fast over the block, and this will give you the best turbulance possible.

Sure, it would mean a "whole new" impeller housing design, with fins and micro chanals.
I also don't like the idea of a big pump being held by the socket.

But the idea..... It's great!

Cathar, I guess you are the specialist in this area.

Can you tell me the minimal LPM needed to keep a CPU cold? Keeping the idea intact that the water will be moving at "high speed" due to the impeller, and that the water will be in longer contact with the fins, as an impellor does not move all the water that it has "captured", but will stay in there for 3 or 4 turns.

The last will make that the water will stay longer at the hot area, making it possible to take up all the heat there is, untill it reaches the same temerature as the cooling block.

Next problem will be that the heat needs to get out of the water, going via a radiator, so a second pump may/would be needed to keep a decent flow.

In my post "My steps into pump modding.. " I modded a small, 300l/h pump, original 0.7 m head, and after the mod a 1.3m head. It's small, 5w, silent and capable of pushing the water to a whole lot of restrictive stuff.

A pump like that should be able to fit in a custom made block.....