Here are some pictures of the second layer of the block:
The design of this layer is a simple due maze with each side of the block kept separate from the other. Again the same principles for the channels with a channel within a channel incorporated as well as dimples and smooth large corners.
I cam up with this idea when trying to work out a way to have as man channels as possible in the space I could use over the CPU described by AMD’s specifications for thermal dissipation devices. I tried using lots of small channels but the flow rate in the block and the difficulties of machining it would have made it useless. I then came up with the idea after some one said something to me and I remembered about new CPU architectures based on multiple layers linked through them middle.
The large hole that is not connected to the channels in this layer is for the water to pass through from the main inlet with out getting heated before it reaches the area over the core.
In my final ideas I had thought I would mirror the image of the layer below this one on the base of this second layer again increasing the height of the channels but it became to difficult due to inaccuracies in the machine that it was abandoned.