I don't think anyone is selling DDR4 SO-DIMMs though. The only ones I could find were a 32GB (4x8GB) kit on Crucial's site for $550. ASRock did announce their EPC612D4I motherboard a few weeks ago which is a server-focused socket 2011-3 board that has 4 SO-DIMM slots like you're suggesting. It's a thin m-ITX board so it's a little more limited on connectivity along the back. Definitely a cool board though.
Right, but this will change. Since only one platform currently uses DDR4, it's not surprising that there is a lack of SODIMMs.
Just ordered one of these a few days ago. Should be arriving early next week. Glad to see this review up and get a preview of what I'm up against. I've been looking to upgrade my Plex server to a 6-core chip on LGA2011 but nobody seemed to want to touch mITX for a long time. Finally ASRock stepped up! I don't care about quad-channel memory or tons of PCIe slots. I just want as many cores as I can get in my mITX machine. I'll never feasibly afford a high-core-count Xeon chip but $350 for an i7-5820K and $250 for this board is manageable. It will be a huge upgrade from the 4-core non-hyperthreaded i5-4440.
I grabbed a Noctua NH-U12DX i4 to cool it. I couldn't find any reviews with good info on the noise of the bundled cooler and there are few manufacturers making coolers that are compatible with the narrow mount for socket 2011-3 coolers. You can't go wrong with Noctua so I dropped it in the cart. The inclusion of a bracket to mount AIO coolers like the Corsair Hydro series is a nice touch for those who want to go that route. I'd love to see a picture with the block mounted to see what the clearance for tubes is like around that socket area.
The one issue is that in order to OC to the max on the Intel X99 Express platform requires a substantial cooler. Under normal loading, the provided cooler is fairly quiet at stock clocks, but under max speed, the cooler is noisy for sure. I am pretty sure I saw over 5000 RPM, which might give you an idea of the noise produced, but even so, it's high pitched, not crazy loud, IMHO.
There isn't that much difference in real-world performance between dual and quad channel.
At the moment, sure. But I can definitely notice the difference with how I personally use my PCs. I have 4790K and 5930K main rigs right now, as well as the X99E-ITX/ac as a build in progress inside a BitFenix Prodigy, and even as a gamer, there are noticable differences for each platform. Yet, I mean, I have spent a long time investigating minute differences, so maybe I'm a bit sensitive to these things were others will not be.
What exact MOSFETs are they?
You know, ASRock is pretty open about this even on the product page: