Trying to think thru my list of...
...what ifs.
Unsure of what ram you have. It seems like a single 8gig stick of ram by Adata. I have used multiple kits of this 2x4G kits with absolutely zero problems. Cas 9 and a good price right now. And NO heatspreaders sticking up in the way of an air cooler on the cpu.
$53.99
G.SKILL Ares Series 8GB (2 x 4GB) 240-Pin DDR3 SDRAM DDR3 1866 (PC3 14900) Desktop Memory Model F3-1866C9D-8GAB
I would likely consider another fan like the one on the CM 212 EVO so you can run in push/pull mode for greater airflow thru the cooler fins. Of course you can try it with the single fan to begin with but you have been put on notice as it were. Speaking to that 4.3 to 4.5GHz range since I do believe it will be easier with the added cooling of push/pull fans.
Something like this may be helpful for cooling the VRMs if the CM 212 EVO does not hinder such use.
Antec SpotCool System Cooler
You are using an air cooler so the above may not be needed but letting you know in advance. I will also link a couple of pictures below of other methods that have been used.
I have tried to picture what I likely would have on 'my' shopping list based on having done such so many times. I do try and be prepared but there is nothing to say you cannot do it in steps after you get up and running and we get some feedback from you.
Before I forget just a word of information...make sure that there is not a piece of clear plastic on the Cpu cooler that would need to be removed from the area that sits down on the cpu and would be like an insulator if let there.
That is about all I can think of currently. Oh yes something else. Did you get a 'regular' windows installation DVD with your original computer? I ask because it is possible that the 'new' mobo may not be at first liked by a PRE-installed operating system. Since I don't think your original mobo still works...might throw a curve at you when the previous hard drive is hooked up to a new mobo. Don't know for sure what you will experience but now you are aware that there 'might' be an issue. I often can swap PRE-install operating systems and get the rig to boot and remove all old drivers and then install the ones made for the mobo I did install.
Only other thing that has come to mind now is the Mode of the HDDs and they should likely be Sata mode with AHCI setting. I think the new Asus mobos do that 'now' by default but should check it first. I would think even an OEM configurator would have it set to AHCI and if the mode in which windows was installed does n0t match the mobo setting it certainly will not boot to windows.
Booting hard drive should be on Sata port #1 and any Optical drives should be attached to Sata port #5 or #6.
Dang am I thru remembering what-ifs? Think so this time. Good luck MrEd.
RGone...
PS:
Okay I did remember one more thing. I know you said get running and then return to Overclocking and that is always the recommended procedure in that you get stock assured stability and then overclock. So the added VRM cooling might not be necessary certainly at initial assembly.
) Since I am new to overclocking and building from scratch, I thought I would stick my toe in and test the waters. While I have replaced most other components in a system, I have never done a MB or CPU or messed with BIOS. 
