Originally Posted by MorgsTouch
Originally Posted by givmedew
It would look fine once it is covered back up. One thing to keep in mind is that air doesn't have the ability to take much heat along with it and therefore once it gets warm it isn't very useful for cooling so my recommendation has always been to use 2 fans on the top pushing air through the radiator and into the case. I know this is the opposite of what top side fans normally do but I assure you that 67-72f air is a lot more efficient at cooling than 75-90f air.
You can go to martin's liquid lab and read about push pull configurations yourself. Jist of what you will read is that it may not be worth your money to do a push pull.
If you put your fans in the top of the case like the other guy showed make sure you use a gasket above and below the case and ensure that the gasket actually seals the area. With the fans pulled off the radiator and a not perfectly flat mesh area between them it is very possible for some of that air to just go out the sides and not straight down. This is more of an issue for high fin density radiators than low density which is what you have but none the less it is an issue and would do a lot more than adding 2 more fans. If you get 2 more fans make sure they are the same ones on the top so that the h100i can control them all together.
He could use a small shroud as well, and the fans don't have to be the same he could just get a fan controller and raise the rpms when needed. Those fans that come with it will be loud if he has 4 of them running on med/high during load. Unless he's buying 4 new ones all together than it should be no question they are all the same...
A shroud will not seal anything as it isn't meant to be a seal it is meant to decouple the fan from the radiator to give a more even spread. You can see the difference of a shrouded vs non shrouded fan in the dust pattern that a non shrouded fan will leave behind. Martin's Liquid Lab is a good resource to learn about shrouds again not going to be worth the money. They do look great though. I have a bunch of shrouds for my various PCs but they are really just for looks. Some/most shrouds do come with seals however you will need 2 seals one below the metal of the case and one above the metal.
Adding 2 extra fans will reduce the noise ASFAIK by a very small amount. The reason is if I remember correctly is because they will be running at just a slightly lower RPM. Again look to Martin's Liquid Lab I am not sure if he covered that topic or if it was the guy from Europe who covered it.
Ideally you will want the same fans. The H100i has a built in fan controller that can handle 4 fans. There will be no need to use any other fan controller.I'm not trying to be a jerk but basically every word that came out of your mouth is incorrect with the possible exception being the increase is noise. Although it won't be extreme as you think it would. I am most likely correct about it being less noise with 4 fans though as I am fairly certain it was covered in a article by one of the people who put these silly misconceptions to rest.
If you have anything to say back that is stating the opposite of what I say please cite your source... My source is Martin's Liquid Lab which I have read every single article and my own experience which includes many custom builds and many closed loop builds. One of the more recent build I did was with a H100i originally was going to go with a 650D for the person but talked him into going with the R4 because it has tons of room for doing whatever you want with radiator.
editMartin's Liquid Lab was basically created because of people on these forums saying the opposite of what the truth is. Which results in wasted money
also 2 rubber seals and the metal from case will be plenty of room to decouple the fans from the radiator and will most likely keep that dust build up pattern I mentioned from happening. You can use double sided sticky foam tape to make the seals even thicker and get even more separation. Separating the fans from the radiator without sealing the path of air would be similar to blowing through a straw that is barely touching the top of water in a glass vs blowing through that same straw an inch from the water. No where near as much air is going to penetrate the water. Your radiator is a barrier and like liquid or electricity the air will take the path of least resistance. You want to make it more difficult to escape from the sides than to go through the radiator. This, that push pull is not cost effective and that pushing cool air from outside your case into the radiator are basically the point I was trying to get across. I don't understand the need for someone to contradict what I am saying without citing a source.Edited by givmedew - 4/3/13 at 3:01pm