Swiftech H20-220, have a look at that kit for a second.
http://www.swiftech.com/products/h20-220-compact.asp

I have had much success cooling with this kit on q6600 @ 3.6, however it has relatively significant vibration, and that translates to noisy.

As you see, the pump and cpu block are a single unit.

My intention is to place an Swiftech Apogee GT block on the cpu (should perform quite similar), while maintaining the use of the all in one pump from the kit to drive the system. It just adds one length of hose to the original kit.

The interesting part. The pump actually becomes a heatsink at that point because of its design, so what if i attach the copper base of the pump/cpu block to a rather large heatsink I have lying around (say coolermaster gemini II), and have that sitting at the bottom of the case. I know the pump to heatsink won't transfer all that much heat, but the fact is that some heat will be dissipated out from the water, to the heatsink.

Reason for the post : Where is the flaw in my plan. It seems too easy, and maybe even flawed because i haven't seen anyone else try something like this.

Thanks.

can't you just replace the water block? maybe not but that seems it would be better than either

I need to take the pump off the motherboard to isolate noise and vibration, taking the water block with it, so i'll for sure be putting a new one on.

sandwiching the pump/block combo to another heatsink is the curiosity part. how much heat can it remove from the water, or am i violating some rule that results in bad things happening.

Since you have the parts, try it and see. Let us know how it turned out.

So, let me get this straight...you want to remove the CPU/pump combo and replace it with a regular CPU block, and use the pump combo only as a pump?

It should work fine, but why go that route? I haven't seen anywhere that makes a big deal of the vibrations you speak of...although they would be more than having the pump elsewhere in the loop. It sounds like taking a simplified idea and making it difficult. You don't need to have the CPU/pump attached to anything, really...just power.

Explaining the process is far more difficult than doing, so i'll get some pictures when the last piece of the puzzle arrives, I'll do some tests and see if it holds any merit.