Hardware Review Please

[KungFuPanda]

I'm getting ready to build two of these boxes and wanted to know if I could get anyone's opinion on this.  

Also note that there is an extra GPU and extra PCI Riser card for a spare on the list.  I will be running a 6 GPU host. 

Thanks in advance. 

PCPartPicker part list / Price breakdown by merchant

CPU: Intel Core i7-6800K 3.4GHz 6-Core Processor  ($491.61 @ Newegg) 
CPU Cooler: Cooler Master GeminII S524 Ver 2 65.0 CFM CPU Cooler  ($45.87 @ Newegg) 
Motherboard: ASRock X99 WS-E EATX LGA2011-3 Motherboard  ($496.52 @ Newegg) 
Memory: Corsair Vengeance LPX 64GB (8 x 8GB) DDR4-2666 Memory  ($327.73 @ Newegg) 

Storage: Samsung 850 EVO-Series 1TB 2.5" Solid State Drive  ($346.26 @ Newegg) 
Storage: Samsung 850 EVO-Series 1TB 2.5" Solid State Drive  ($346.26 @ Newegg) 
Storage: Samsung 850 EVO-Series 1TB 2.5" Solid State Drive  ($346.26 @ Newegg) 
Storage: Samsung 850 EVO-Series 1TB 2.5" Solid State Drive  ($346.26 @ Newegg) 
Storage: Samsung 850 EVO-Series 1TB 2.5" Solid State Drive  ($346.26 @ Newegg) 

Power Supply: Corsair Professional 1200W 80+ Platinum Certified Fully-Modular ATX Power Supply  ($336.47 @ Newegg) 
Power Supply: Corsair Professional 1200W 80+ Platinum Certified Fully-Modular ATX Power Supply  ($336.47 @ Newegg) 

Case: PrimoChill Hasher - Rugged Crypto Stackable Mining Rack ($129.99)

Other: PNY GeForce GTX 980 Ti 6GB CG Edition ($659.99)
Other: PNY GeForce GTX 980 Ti 6GB CG Edition ($659.99)
Other: PNY GeForce GTX 980 Ti 6GB CG Edition ($659.99)
Other: PNY GeForce GTX 980 Ti 6GB CG Edition ($659.99)
Other: PNY GeForce GTX 980 Ti 6GB CG Edition ($659.99)
Other: PNY GeForce GTX 980 Ti 6GB CG Edition ($659.98)
Other: PNY GeForce GTX 980 Ti 6GB CG Edition ($659.98)

Other: PCI-E 16x to 1x Powered Riser Adapter Card  ($12.95)
Other: PCI-E 16x to 1x Powered Riser Adapter Card  ($12.95)
Other: PCI-E 16x to 1x Powered Riser Adapter Card  ($12.95)
Other: PCI-E 16x to 1x Powered Riser Adapter Card  ($12.95)
Other: PCI-E 16x to 1x Powered Riser Adapter Card  ($12.95)
Other: PCI-E 16x to 1x Powered Riser Adapter Card  ($12.95)
Other: PCI-E 16x to 1x Powered Riser Adapter Card ($12.95)

Total: $8635.00
Prices include shipping, taxes, and discounts when available
Generated by PCPartPicker 2016-06-02 09:56 EDT-0400