this is still happening to me with a HP z820 with:
-2 Xeon e5-2640v2
-32gigs ram
-Cuadro k4000
-declink 4k BM display card
-cubix xpander with 3 titan black 8gigs each 18g total
-SSD OS win 10
-Davinci STUDIO
i've been working with no problems until davinci 14 with a lot of nodes in the projects NR included and never had this issue ... now im struggling every time i try to open one of those projects. ive done clean install, transcoded clips, the OS is perfect with every driver up to date... the 3 titans never reach to work at 100% and suddenly i get the "your gpu memory is full" error, and yes this happens mostly when i hit the NR node, which i repeat was PERFECTLY WORKING in resolve 14