I have set up a 9 gpu system with nvOC 16 and here's my experience.

nvOS is stellar. Fullzero has put something really special together here. Hats off to you. I have used windows builds with Claymore as well as other linux os such as PIMP.  This is by far the best experience I have has so far.

nvOS is as easy as setting up in windows but with the advantage of linux as well as being able to control everything including over clocking with a bash script file that's as easy as filling in a form.

Currently this 9 gpu rig is hashing ETH and DCR using the suprvova pools. I have found v16 with claymore 9.5 to be far superior to the previous version and i think it will be our goto for larger deployment for the time being.

Right now it hashes at around 183 Mh/s.  Here's the build:

1x Motherboard Asus z270 K
https://www.amazon.com/gp/product/B01N6E5DGE/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&linkId=2c808e893c1258649f2dc669fac68eaa

1x Celeron CPU
https://www.amazon.com/gp/product/B01MYTY55V/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&linkId=62eae19da50682d49b19da172923f70d

1x Memory x1
https://www.amazon.com/gp/product/B00MMLUYVU/ref=as_li_ss_tl?ie=UTF8&th=1&linkCode=sl1&linkId=28d39779a7e5f04c0a3194ee0f20b4c9

2x PSU
https://www.amazon.com/dp/B00IKDETOC/ref=as_li_ss_tl?ie=UTF8&linkCode=sl1&linkId=e0bee413cbda09bbca0d433a344de225

1x USB Drive
https://www.amazon.com/gp/product/B00KT7DOSE/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&linkId=e9ccce372d51579418f777c9c844d74a

2x m2 pcie adapter
https://www.amazon.com/gp/product/B01ABF9APE/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&linkId=441adfeae3389676c409b69f685a53c6

3x pcie riser
https://www.amazon.com/gp/product/B01N3UVJHM/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&linkId=92ec3dac391a8212786d89057dff4406

9x GPUs
https://www.amazon.com/gp/product/B01IPVSGEC/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&linkId=4cbbd38378ca9a5a74f92155432314bf

1x power switch
https://www.amazon.com/gp/product/B06XPZBM7V/ref=as_li_ss_tl?ie=UTF8&psc=1&linkCode=sl1&linkId=60ed915161819f8f0b0a570310c23b83

1x Wooden frame
https://www.amazon.com/Woodpeckers-Square-Dowel-Rods-Pack/dp/B01C6BMJ7M/ref=as_li_ss_tl?ie=UTF8&qid=1498368074&sr=8-1&keywords=square+wood+dowel&linkCode=sl1&linkId=35a31a17309fd7f18b37fee50ebbb959

around $3300 with tax

Here is a pic.
https://lh3.googleusercontent.com/JEVicIBkHCAEk1SwqyfQZVGtL6LxPPx47qnHLm1rVkMeFE5vlTMFEOdU9pyAV76ziJA1OYdjz07BJmGxtqGHRzjupRIq027ta2Ou6oduYm7bft8VicjmB38vulSdPKGAmLT_KJo=w968-h1290-no

Here are some nvOC wallpapers for your rigs.
https://drive.google.com/drive/folders/0B0lx4O21EyI3eEFHcG8tWEhIU0k?usp=sharing

During setup i encountered numerous errors, all of which were remedied.  I went with 2 psus, not sure if its better in teh long run but splitting 1100 watts over two 850s seem to be decent for efficiency.  I have built 7 of these now and a few with the z270A version using 8 GPUS.  Both are good.  I have created this system as the model for our small mining farm in California, so i will continue to feedback on these builds as I go.

Bios settings were very important.  As was bios version.

Damaged risers and a bum gpu were also headaches during set up so be on the lookout for that.  Once you have the bio settings right and the hardware actually works it really is as simple as flashing the drive, plugging it in and turning it on.  If anyone wants the bios settings PM me but its here in the thread and is mostly about setting all pcie settings to gen2, using bios 0801 and not flashing the newer 0906.  Which was the opposite to PIMP which did not seem to work for me on the older bios.

One last thing, with these gpus I set the OC to

__CORE_OVERCLOCK=150
MEMORY_OVERCLOCK=825

and it seems to be running stable with no ETH rejections and about 1 in 200 DCR rejections. temps at 80 fans at 65% -dcri 50 and pulling about 1050 watts.

I built two of these for a friend and two for my sister.

Both are pointing at nice hash. On is here https://new.nicehash.com/miner/1GCSdasYQ3wWp8zAHHvHyao83aoyA6AFVM - currently its waiting on pcie m2 adapters to get all 9 cards going. They will recoup their investment in 3-4 months and their minds have been opened to the new world of block chains, contracts and decentralized crypto currency.

Thanks fullzero this is a brilliant project.