Instruction: Extract information from the supporting document to answer the given question.

Input:
Question: What CPU coolers are known to work with this board without interfering with the first memory slot?
Document: I bought this board along with the Intel Core i5-4670K processor and 8 gigs of memory to work with After Effects and photoshop. As a total newbie and novice with these programs I didn't want to spend thousands of dollars for a system but I wanted to get something reasonably good so that I could render the videos in after effects during my lifetime and work in the programs without waiting too long for the system to catch up. I have never used the built in video but use a  NVIDIA Quadro 2000.
I was so excited about this board. The first board I got has broken and bent pins on it and had to send it back. Second board I got would tell me no memory installed. Called Asus customer support (some of the best), we figured out that 3 out 4 memory slots did not work and I had to update the bios. Got it working for one day. The next day it dose not work at all saying there is legacy memory in it not.
I'll preface this by saying that I'm not OCing anything at the moment but the memory. Still, I've OC'd in the past, and I can see that this board offers plenty of options to fine tune the performance of any CPU. For my uses though, it is rock-solid and offers me the option to OC in the future.
It's been almost 6 years since my last build. Oh, how things have changed. This board seems to do everything. It's amazing how its become more than just a place to mount the CPU. The list of features are long and amazing. Sound quality is amazing without the need of an additional sound card.Best thing of all, it looks good mounted on my HAF X. A definite must buy if you're building a computer.Love ASUS software it comes with.
Great board, worked with all hardware first try no problems. XMP profiles for extreme memory, and all the overclocking options you could ever want.
Board won't POST and gives error code 00 with known good components. Installing and troubleshooting all my parts was a big waste of time. Very disappointing to get a product that does not work. I hope that the replacement functions better (i.e. functions at all) than the defective board that I was originally sent.
I was first hesitant to buy this mobo as I thought it wouldnt have all the features i would want. I saw it for a good price and grabbed it off impulse. A fresh build of components were assembled with this board and it fired right up with no problems whatsoever. I did research and found it is constructed with all the same components, mosfets, caps ect, that the higher end ROG boards but without all the stuff I would never use. The mobo has even more features than I use.
I favor Asus MB's for their quality and overclocking abilities. I was able to get my Intel 4770 K I7 CPU up to 4.6GHz without any issues whatsoever, using a  Corsair H105 water cooler. The BIOS interface is fairly intuitive and easy to use, and the documentation is excellent. The OC procedure is surprisingly simple - there is an excellent YouTube video put out by Asus which explains everything.
I then asked them if they could make it an advance RMA (where they ship the replacement first) so I wouldn't be without a PC for a month or two as their regular RMA process said it could take. I had to call them on the phone for this, and they mentioned they'd send me paperwork for the advance RMA. They never did. I Googled the form and faxed it in (with credit card info, because faxes are SO SECURE, right?
The Fan Xpert 2 software quickly generates profiles for each of your fans and you can setup your own fan curves easily. I'm so happy I can say goodbye to my manual fan controllers. I also appreciate the inclusion of DAEMON Tools Pro Standard. [The BAD]Although I'm enamored with this board, I should mention a couple of hiccups I encountered while using it. At release time, the Mem TweakIt application says it needs to be updated before any memory settings can be changed with it.
Answer: Pretty much any. I'm using a h80i and fits perfect. I would recommend the 212 if you want aircooled