The only pump that puts the least amount of heat into the loop is a DDC-1T. Add a performance top, the flow increases while the heat will not increase.
The real question asked here would be, what pump would work in a loop with these components .... cooling this in the PC ....
This way, the selection of pump(s) would be a practical method to a logical flow rate between 1gpm to 1.5gpm.
Remember, too much flow can have adverse effects of cooling the loop just as bad as too little flow. Got to hit the sweet spot for the best results. Edited by bmaverick - 8/14/12 at 11:21am