Um, no. A CPU is not a motor. If you're pulling 500W at the socket, you sure better had a thermal solution that can handle 500W. If not, it's going to heat up. No solution is 100% efficient hence the reason why sub ambient cold plate design is required if you want your core temps to be lower than 30C over ambient, etc.
And I will say it again, the delta you're shooting for is on the high side. Not everyone is just playing games or running benchmarks. Under 24/7 load (folding/crunching/rendering large, etc.) your temps are going to drift too high for comfort UNLESS you're running stock. This is exactly why a big tower cooler can actually outperform the largest AIO. In a benchmark test, the AIO wins because its fluid temp stays cool enough to act as a buffer for the excess capacity that's not there.
And not everyone wants to hear fan noise as well. So use twice the radiator design, 1/2" ID (always) tubing and fittings throughout, and slow the fans down to under 1000 rpm and your hardware will be happier and certainly your ears too!
(insert face palm here)
Sigh... No you do not plan a 500W cooling solution for a system which is pulling 500W.
You will NEVER get 100% loss in heat... that again, is not an efficient chip, and no chips for that matter are that leaky.
You also did not account for the draw on the board, and other components on the motherboard.
Also, incase you missed it, mark got Gentle Typhoons 2150.
Im fairly sure he will have them running at 100% all the time.
The numbers i gave mark and everyone are numbers which were calculated by Skinee and Martin back when science was used more heavily then bling for liquid cooling.
And no a big tower outperforming an AIO was clearly explained by me in the above post.
Its more about FLOW and efficiency overall in the loop.
If mark wants to go all out insane, then he would need a new case, a Core X9 / Tower 900 / Caselabs Magnum / Mountain mods.
Which im pretty sure he doesnt want to get.
And he can always run dual loops, or expand his loop later on should he feel that he needs it, but i have already clearly explained the point in diminished returns in LCS, and how poor the results are once u get to them.
You can spend infinite amount of money on your loop, however the improvements will just get smaller and smaller at a exponential cost.
Lastly, the more fans you have sound gets multiplied greater then having the fans run a tad bit faster due to acoustics. Again something science has shown when martin / skinnee / vapor were fore fronting tests on the ideal setup.