Lexon Air Cooling is extremely good. But liquid can take you to the next level of cooling. When i say Liquid Cooling, i mean in general. Most of the low-end/simple Liquid Cooling kits, will give you the temps of a good Air Cooling system. But you have to fully understand both, in order to get the most of it.
Surprising, Air Cooling can be a little confusing. Theirs alot more to it then just adding fans. Their are 2 general requirements to a successful Air Cooling system.
First is the Fans, the Fans CFM and size are very important.
Second is the positioning of these fans and arrangement.
So for a ideal cooling system, you should have 120mm fans, with around 100-CFM+. The more CFM the better, thats how much air is blown. If you have 80mm fans, then 50-CFM is just fine, over all thats moderate. Remember you have Intake and Exhaust. Its always better to have slightly more exhaust, or an even amount. But how do you determine that??? Well by the size of your fans, the speed at witch your fans are working at (RPM/CFM), and the share number of these fans. So now you have figured out what fans your going to get, and the amount of them that will be used for Intake/Exhaust.
But why is exhaust so important? Exhaust gets all the warm air from your case out, that was blown in from your Intake. If your Exhaust is working slower then your Intake then you have a problem. When the air gets blown in from your Intake, its cool. Because its moving fast. Then it hits your hardware, becoming warm. Once this temperature exchange takes place, that means your cool air, now turns warm. So if your Exhaust is working at a slower rate then your Intake. All that air that came in from your Intake, witch turns warm, is just sitting in the case. The longer that warm air sitts around, the more that air conducts its heat back into your system. Witch results in a negitive effect.
But now we have to talk about the positioning of your fans, cooling system setup. Basicly where you put these fans. You just cant put a fan in, and think just because you got a fan its doing something. For example, most cases come with a fan in the front bottom of the case. Witch is always hidden behind the HDD containers. This means that cool air has to travel threw your HDD containers, then finally encounter your mobo. Thats basicly a very bad place to have a Intake fan. By the time that air gets to your mobo, its velocity has dropet ALOT. So the air is no longer cool. Just a very small breeze doing nothing.
So you have to arrange your fans in all the best ways. The best position for your Intake, is rite on your removable side panel. That means its blowning air striaght on your mobo/cpu. So put as many as possible there. Exhaust, that would be good for the back of your case, or rite on top of your case.
I hope this gave you a better idea about air cooling.