Is this compatible? help

Solution
The motherboard has native m.2 slots and support, it'll only disable a Sata port but that's no different than using a Sata ssd. The 960 pro is an NVMe drive, basically twice the performance of a Sata 3 ssd. The pcie I'm not sure exactly how that'll work on that board, but for testing, nothing has really been able to touch Samsung except in a few criteria.

I'm an advocate of new ram. Over the years I've seen too many people have issues with different kits, but there's also many more who have no issues at all. It's a gamble at best, but honestly, I'd go with a new full kit and ebay the old stuff since it's still viable ram.

I'm used to hdds. After 30 years of dealing with them I'm used to their quirks for sure. They are like old...
PC part picker tells you if it is compatible. And yes it is compatible also it is vr ready. You really dont need a beafy water cooler like that if you are not going to oc and you can oc any ways because you need a unlocked k chip to oc.
 
Your build is OK, but it's all over the place. You are spending extra for a Z overclocking board, but less for the non overclocking cpu. You have sli 1070's with an i7 yet will probably be stifled by just 8Gb of ram. Your sli 1070's and locked cpu at best would need a decent 750w psu, yet are opting for a very high quality 1000w corsair HX which happens to be a quite old design and is no longer actively produced. Top that off with a $150 cpu cooler on a cpu that comes with a cooler and really has no need for better.

Basically, you've overkill some items and shortchanged others. You'll find that while compatible, you aren't getting value for your money.
PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-7700K 4.2GHz Quad-Core Processor ($338.89 @ OutletPC)
CPU Cooler: NZXT Kraken X62 Liquid CPU Cooler ($148.99 @ SuperBiiz)
Motherboard: MSI Z270 SLI PLUS ATX LGA1151 Motherboard ($133.98 @ Newegg)
Memory: Team Dark 16GB (2 x 8GB) DDR4-3000 Memory ($99.89 @ OutletPC)
Storage: Samsung 960 PRO 512GB M.2-2280 Solid State Drive ($327.99 @ B&H)
Storage: Seagate Barracuda 1TB 3.5" 7200RPM Internal Hard Drive ($48.88 @ OutletPC)
Video Card: EVGA GeForce GTX 1070 8GB FTW Gaming ACX 3.0 Video Card (2-Way SLI) ($419.99 @ Amazon)
Video Card: EVGA GeForce GTX 1070 8GB FTW Gaming ACX 3.0 Video Card (2-Way SLI) ($419.99 @ Amazon)
Case: NZXT H440 Designed by Razer™ ATX Mid Tower Case ($169.98 @ Amazon)
Power Supply: EVGA SuperNOVA G3 850W 80+ Gold Certified Fully-Modular ATX Power Supply ($108.00 @ Newegg)
Total: $2216.58
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-02-21 22:18 EST-0500

$50 cheaper, far better performance, quality, warranty.
 

i was planning on getting the unlocked version but then my old motherboard had issues where it couldnt sli or overclock, so i forgot to put the unlocked version on there instead. Also i have already got 8gb of ram (2 x 4gb) so should i get 2 x 4gb or just buy that 2x 8gb that you said. Lastly if i have the money do you think its worth getting the pcie ssd (intel 750 series) and the samsung 960 pro (also is that the best ssd?). Should i get one 1080 or 2 1070's?
if 1080, which one?
could i improve anything else (like anything better than something else?)
thank you for everything and i hope you do respond
 
The motherboard has native m.2 slots and support, it'll only disable a Sata port but that's no different than using a Sata ssd. The 960 pro is an NVMe drive, basically twice the performance of a Sata 3 ssd. The pcie I'm not sure exactly how that'll work on that board, but for testing, nothing has really been able to touch Samsung except in a few criteria.

I'm an advocate of new ram. Over the years I've seen too many people have issues with different kits, but there's also many more who have no issues at all. It's a gamble at best, but honestly, I'd go with a new full kit and ebay the old stuff since it's still viable ram.

I'm used to hdds. After 30 years of dealing with them I'm used to their quirks for sure. They are like old reliable transportation, not fancy, not spectacular performance, but cheap and reliable. If you choose to run nothing but SSDs, I'd still go the 960 pro for boot and important apps, but I'd go for something like a large crucial MX300 Sata 3 for storage where performance really isn't necessary. Even a 2Gb Seagate is relatively inexpensive, so if you need lots of storage this would be a better option than a pure ssd system, especially cost wise.

Not a fan of sli. You only really get great performance from a select few games that have excellent support. The majority have mediocre support and there's more than a few that either have no support or even negative results. You get better playability on a single gpu with sli disabled. So for me, a single more powerful card is better. It might not have the fps of sli but it also has no negatives and in some cases is far better than sli. It's a better overall score if you take the whole picture into consideration, not just those select few games where sli is king. So for me, a gtx1080 would not only be preferable, but cheaper than sli all around. Pound for pound, a 650w psu is cheaper than the same model at 850w usually. Personal favorite would be the Asus ROG Strix, but the MSI Gaming X is also a strong gpu with excellent cooling.

There's always a better option, just depends on who you are. If you look at the recent 'best builds' contest, in unlimited budget there are pc's in excess of $100,000. But they are workstation/uber servers with a sidereal bonus of gaming rig. So exact what's better depends on you, more than the components. Personally, I don't like the H440 much, I've no use for the triple fan in front and it's not a quiet or very good airflow case, but it looks cool,even with the green glow and the additional expense of the Razer name. But others think it's the best case since the invention of pre-sliced bread. Opinions of what's better will vary somewhat.
 
Solution
This would be my choice with your budget
PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-7700K 4.2GHz Quad-Core Processor ($338.89 @ OutletPC)
CPU Cooler: NZXT Kraken X62 Liquid CPU Cooler ($148.99 @ SuperBiiz)
Motherboard: MSI Z270I GAMING PRO CARBON AC Mini ITX LGA1151 Motherboard ($179.99 @ B&H)
Memory: Team Dark 16GB (2 x 8GB) DDR4-3000 Memory ($99.89 @ OutletPC)
Storage: Samsung 960 PRO 512GB M.2-2280 Solid State Drive ($327.99 @ B&H)
Storage: Seagate Barracuda 2TB 3.5" 7200RPM Internal Hard Drive ($69.88 @ Amazon)
Video Card: Asus GeForce GTX 1080 8GB ROG STRIX Video Card ($639.99 @ SuperBiiz)
Case: Phanteks Enthoo EVOLV ITX Mini ITX Tower Case ($70.98 @ Newegg)
Power Supply: EVGA SuperNOVA G3 650W 80+ Gold Certified Fully-Modular ATX Power Supply ($81.00 @ Newegg)
Total: $1957.60
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2017-02-22 22:47 EST-0500