Hi,
Many thanks for the replies, I did bring task manager up and the memory way around 70% used but i will give another test just to be 100% sure. I personally don't want to rendering unless i can get the best
so I guess if need be, another 16GB DDR4 RAM should do the trick 
Thanks
Myth
Custom built W10 Pro 64 bit, Hazwell Intel 5820, Asus X99 MOBO, 32 GB DDR4 Ram, EVGA nVidia GTX1080 Founders Edition, 512GB SSD Primary HDD, 16TB Storage, 27" Samsung 4k Display. Wacom 27QHD, Oculus Rift CV1