[Dr_Cox1911]

Which RAM do you suggest I use in the Haswell NUC? I want it to be as fast as it can, but I don't want to waste money on overkill.

Also, can someone suggest the benefits/disadvantages of either openelec or XBMCBuntu? (I have not used either of them yet).

You need DDR3L SODIMMs with 1.35V voltage. Crucial is cheapest and works good, but if you're looking for a 4-gig memory module, be sure that you get this module with a J at the end of the model (Amazon link). For 2 or 8 gig modules, the "normal" module without J works ok. If you're in Europe, it's worth checking out Kingston as it's better available. KVR16LS11/4 or KVR16LS11/8 are the NUC compatible models from them. If you're after absolutely last drop of performance it makes sense to install 2 memory modules of the same kind as that will enable dual channel mode. In practice the difference is minimal though... How much you need depends on what you want to do with it. Memory is rather cheap though, so maybe two 4-gig modules? I've got two 2-gig modules and it's enough for everything I want to do with my NUC though.

When it comes to your second question, it's the second question in OE FAQ: http://wiki.openelec.tv/index.php/OpenEL...e_to_me.3F

Hm, I ordered my NUC and the RAM yesterday, but I bought the 4GB Crucial without the J at the end (so this one: CT51264BF160B). What´s the problem with the 4GB module without the J at the end?