CLC Type liquid cooling is a complete waste of time and money. A decent air cooler will do the same job for less money, better cooling and less noise. However, it most be noted that a "great budget cooler" like the $25 Hyper 212 is not the same thing as a "great cooler". A Phanteks PH-TC14PE, Noctua NH-F14 / D15, Cryprih R1 for example will get you 7-10C cooler than a Hyper 212.
CLC Weaknesses:
Weak Pumps (inadequate flow)
Aluminum Radiators
Mixed Metals
Extremely Noisy
Not Expandable
Can't be Maintained
Because of the weak pumps and aluminum radiators, they must use high speed fans to overcome these deficiencies. Many will suggest changing the fans but that's kinda akin taking the 8 cylinder engine out of your sports car, putting in a 4 cylinder to get better mileage and expecting it to perform the same. Your thermal performance drops in proportion to fan rpm ... so when noise goes down, heat goes up.
Here you can see The Cryorig and Noctua coolers up against the Corsair H100i. As you can see the H100i loses the performance battle by 3c while being 12 times as loud. Slow down the fans and that 3C grows ... fast.
In this radiator test we see the UT60 deliver 326 watts of cooling at 2200 rpm (500 rpm less than the h100i). At just 1800 rpm, only 400 rpm slower, we are down to 82% of thermal performance. At 1400 rpm, we are down to 64% of thermal performance. At 1000 rpm, where we are still well within the audible range, we are down to just 46% of thermal performance
https://martinsliquidlab.wordpress.com/2012/04/12/alphacool-nexxxos-ut60-360-radiator/4/
if ya want to get an idea of just what a H100i sounds like:
https://www.youtube.com/watch?v=cTf0Vq1j4Ec
As soon as it hits 55% CPU load (1:15 mark) , I would wanna to leave the room. But yes, you can fix the noise problem with slower fans, but you're already 3C below an air cooler, getting down to 1400 rpm or so, you can expect about 50% thermal performance.
If ya wanna see why using mixed metals (copper blocks / aluminum rads) read and see the pics here:
https://martinsliquidlab.wordpress.com/2012/01/24/corrosion-explored/
If a custom loop seems daunting, I'd suggest an OLC type All-in-One like the Swiftech H220-X or H240-X. There is nothing that is easier to install and while they won't be quite as quiet as an air cooler, as you can see in the above image, they are 1/6th as loud as the H100i while being &c cooler. That's the advantage of copper rads and capable pumps. Wit ht he OLC's you can also expand the loop and add water cooling to your MoBo, GFX cards whatever any time you like. Read the reviews here:
http://www.hitechlegion.com/reviews/cooling/liquid/40870-swiftech-h220-x-open-loop-240mm-cpu-cooler-review?showall=&start=3
http://www.hitechlegion.com/reviews/cooling/liquid/42047-swiftech-h240-x-open-loop-280mm-cpu-cooler-review?showall=&start=3
Installation of the H220X was very easy, probably the easiest liquid cooler I have ever done.
In terms of performance, well….we could simply leave it at the fact that the H220X is simply the best performing out-of-the-box cooler you can buy today. Period. It slightly betters its predecessor, the H220, as well as the Glacer 240L that is equipped with far more powerful and louder fans. The NZXT X60/61 comes close in terms of performance, but at the expense of far more noise and far less compatibility. 240mm CLCs can’t touch the H220X in all out performance, and at tolerable noise levels the H220X flat out embarrasses them .... To sum it up; the H220X offers better performance, lower noise, better aesthetics, flawless design and build, better components and the option of expandability when compared to a CLC. Putting it gently, choosing any CLC over the H220X would be doing yourself a huge disservice.
I had stated in my review that the H220-X makes CLCs a non-factor, and the H240-X follows that pattern, but putting even more possibilities on the table. For the novice or CPU only user, the H240-X is simply the best performing cooler you can buy that is ready for install out of the box, and it accomplishes this with incredible quiet.
Whether you are making your initial foray into liquid cooling, are looking for an upgrade from CLC or are an experienced user doing a small loop, the Swiftech X Series should be planted firmly at the top of your “must have” list, and the H240-X is the biggest, baddest member of the series. The H220-X and H240-X are game changers, plain and simple, and are the biggest advance in cooling that we have seen in years.
The EK predator series is a worthy competitor but a lot more expensive.
The other advantage of OLCs is that if a part breaks, unlike CLCs, you replace the part only. Also after a number of years if you wish to flush out the system and change the cooling, again unlike CLCs, you can do that.