Every spec I can find on every website says that the max amount of ram that the X99E-ITX/AC can support is 32GB's of ram - EXCEPT Asrock... 

http://www.asrock.com/mb/Intel/X99E-ITXac/?cat=Specifications

They very clearly list that this board can support 64GB's of ram. I am planning on using a XEON E5 BTW. 

The only listed verified DIMM for 32GB's is the following stick from Crucial: 

So can we add two of these to achieve Arocks' stated 64GB's? 

Thanks

You are talking specifically about the Asrock X99E-ITX/ac working with 64GB's, right?

All my components are on the way, so I'll update this thread and add the pic you are looking for when I'm up and running. I'll be using the Xeon E5-2683 v4 Broadwell. 

Breathless 19.Since you will be getting a xeon before me,coud you please share info if when gaming(or maybe even rendering)do the cores turbo boost and stay to something more than the base speed?

Monkey nuts.... so I'm not going to be the first one to do it :)

Will do, I'll update when I'm all set up

So, I purchased the two 32GB Crucial Sticks from this seller on eBay:  http://www.ebay.com/itm/262573839048%3c_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT" rel="nofollow - http://www.ebay.com/itm/262573839048?_trksid=p2057872.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT

Interestingly, they appear to be a legit "memory module assembler", whatever that means. I didn't know that what I would be receiving when ordering two modules was a matched kit. I didn't know that these sticks were sold as a kit at all, but apparently they are, and here it is: 

http://s195.photobucket.com/user/Breathless19/media/IMG_2393.jpg.html" rel="nofollow">

http://s195.photobucket.com/user/Breathless19/media/IMG_2394.jpg.html" rel="nofollow">

So, not only has everything worked flawlessly so far, but they also appear to be very stable at 2400MHZ no problem. I didn't adjust any memory timings, I just selected the 2400 option in the bios and let it choose what it wanted: 

http://s195.photobucket.com/user/Breathless19/media/IMG_2395.jpg.html" rel="nofollow">

To answer a question asked here, yes, my CPU does turbo up and down without issue. 

Was afraid to see a bottleneck of a fancy gpu due to low cpu ghz.

Mine goes to 2.5GHZ at max. I won't know how well my GTX 970 performs with this until I get it back from RMA, but I'll be sure to do some tests to see if the CPU is a bottleneck for it. 

Its an ES

Discovered an instability problem with my GTX 970 Mini, so I RMA'd it and bought a Zotac GTX 1070 Mini. 

Surprisingly, I do not get the idea that there is any CPU bottleneck whatsoever. When I run benchmarks, my CPU usage remains low while my GPU usage goes sky high. If anything, it seems like my GPU is the bottleneck - even with a massive overclock. So, unless I'm missing something, all those people telling you that a low GHZ cpu will cause a bottleneck seems unjustified. Unless I'm missing something... 

UPDATE 2: 

Asrock has apparently updated their specs page again, this time showing 128GB Ram compatibility: 

http://www.asrock.com/mb/Intel/X99E-ITXac/?cat=Specifications

"- Max. capacity of system memory: 64GB (with Core??i7 CPU) or 128GB (With Xeon^® CPU)*"

In many cases this holds true. In most instances where a CPU is found to be bottlenecking a GPU it is a dual core, old quad core (FX 4k/Phenom/Core2Quad) or an ultra low power CPU (AM1, SoC, intel U). There are some cases where games require a lot of CPU grunt for things like AI, physics and predictive algorithms, almost all these cases are MMOs (typically FPS). In rare cases a CPU overclock or more powerful CPU will have an impact on gameplay, mostly reducing stuttering but also improving FPS when all cores were at or near 100% load on the slower solution. All these situations however are due to the way these games are optimized, NOT insufficient CPU grunt. In games like these the focus is target audience, allowing as many people to play as possible on the broadest possible hardware spectrum. This means many of these games do not fully utilize the capabilities of a modern GPU, if the guy on an iGPU can't use the feature it is handed off to the CPU for compatibility. I wouldn't call it poor or lazy optimization, it is quite deliberate and in every situation where the CPU is proving to be a bottleneck it can be negated by lowering certain visual settings. Basically the game should play smoothly at it's lowest settings on it's minimum requirement hardware, which tends to be rather low spec. The problem is that while it all works great at low settings the higher tier settings increase the load on the CPU beyond what another non MMO title would require and then we start seeing bottlenecks in large battles with 10 - 50 players etc.

GPU benchmarks are designed to stress the GPU and push it to it's limits. Everything is scripted so the CPU does not have a whole lot to do. A benchmark does not have the necessity for user input, interaction or random movement, these are the elements that use the CPU most in games.