New build advice

[DPS]

Anyone mind looking over these spec for me? It's for my primary workstation. I am thinking a Xeon build would be wise for my main computer as I've found them to be quite robust. This will give me 56 buckets.

Asus Z10PE-UD16 WS mobo https://www.asus.com/us/Motherboards/Z10PED16_WS/
2x Intel Xeon E5-2680v4 2.4GHz 14cores http://ark.intel.com/products/91754/...Cache-2_40-GHz
128 or 256GB RDIMM ECC DDR4 2400MHz - the quantity will most likely be determined by cost - I can use the approved RAM list that is published by Asus but I'm a little unsure whether I can I fill 8 of the 16 slots with 128GB of 2400MHz without sacrificing any bandwidth or something else?
GTX 1080ti GPU - I'm gonna get one anyway despite it not being on the approved list http://dlcdnet.asus.com/pub/ASUS/mb/...656.1492213703
Samsung 960 EVO 500GB m2 SSD (not on the approved list but very quick) http://www.samsung.com/us/computing/...b-mz-v6e500bw/
Corsair HX1000i PSU (in case I get another GPU) http://www.corsair.com/en-eu/hxi-ser...-certified-psu
Coolermaster Seidon 120V 86.2 CFM Liquid CPU cooler x 2 http://www.coolermaster.com/cooling/seidon/seidon-120v/

The reasoning for the large amount of memory is based on the amount I tended to use when using a single Xeon setup with 128GB RAM. I tend to multitask, and don't always want to close PS if I've got some large comps open.
The memory speeds are what confuses me the most. I read here but this is outdated: https://www.kingston.com/en/business...ng_performance

I'm using a NAS for storage. Could possibly RAID the primary SSD or have a separate one for scratch. I have a 1TB WD Black HDD that I will utilize too.

Thanks

[biochemical_animations]

This is for a cpu build right? Mainly vray adv use? Arch and still based? Not animation or RT (I.e. Gpu)?

[DPS]

Primarily VR Adv CPU. RT for previews - I'd like to experiment RT GPU hence the large memory capacity. Mainly arch viz stills

[Oleg_Budeanu]

Maybe it is a good idea to wait for new server AMD CPU based on their Zen tech?

[DPS]

Unfortunately I need this before then.

[DPS]

With regards to RAM configurations, Ive found some conflicting information.

It's possible to purchase a motherboard with either 8 Dimm slots (4 per CPU) or 16 (8 per CPU).

I want to get full performance out of the 2400MHz modules and understand the following:

2400MHZ = 19.2GB/s peak transfer rate

x 4 channels = 76.8GB/s Max memory bandwidth (per CPU)

So if I populate 4 slots per CPU with 2400 RAM then this is working at full bandwidth.

In non technical terms - it seems logical to me - that if you have a motherboard with more memory slots then you would loose... something - for lack of better terminology. And this theory aligns to this explanation (table on RHS): https://www.kingston.com/en/memory/r...s/grantleyv3v4

That being said, I have read here (pages 8 & 11 tables): https://sp.ts.fujitsu.com/dmsp/Publi...ance-ww-en.pdf
which suggests that you are not loosing performance by populating 2 modules per channel per CPU i.e. 8 slots per CPU. It suggests that the configuration depends on the memory type i.e. RDIMM and it's 'rank'. So that contradicts the first link.

I understand that the Xeon E5-2680 V4 can utilize up to 8 rank DIMMs per CPU.