DIY CPU water cooler

[M250cnc]

Jonathan got it right in an earlier post, and it looks so nice i didn't want to say anything negative.

Firstly i wouldn't touch the face of the CPU

You have three flaws in your design, it seems the wall thickness is to great the face touching the CPU should be in the order of 1mm or less

The flow of water should be controlled in a backwards and forwards motion in that it forms a single cavity from start to finish forcing the water to travel over all the surfaces

The size of the cavity should match the area of the pipe and within the cavity's should be fins for maximum heat transfer

For best heat transfer it should be made of copper

Air water etc will flow in the easiest route, in your design you can go from start to finish ports bypassing the edges allowing heat build up.

Phil

[wiatroda]

Hi Phil
I found my old 12V water pump from water steriliser (long forgotten adventure with cichlides) and it will be circulating the cooling water. Currently CPU is water cooled, and the graphic card and motherboard chipset will be as well soon. I'm waiting for Peltier modules to come and I'm going to drop coolant temperature as low as possible without condensation. uC is going to control Peltiers by PWM in 8 bit mode. PWM duty cycle will be dependent upon comparing set temperature with readout.
For example coolant temp = set temp then duty cycle = 0 ( peltier off). Temp difference x2 = PWM register (up to 255) so coolant temp variation going to be around 1.28 centigrade creating from 0% to 100% peltier duty cycle.
Looks like this small silencing project going to be a monster one .
At last that's the theory, maybe somebody have some suggestions ???

Graphic card and manifold parts :