thanks for the contribution helios and philip
Are you planning to run your rig at 100% TDP ? If you pay for electricity you might want to lower your TDP to be more efficient and more profitable and you won't have to deal with any PSU issues
Not really, from the early tests I did yesterday plugging one of the gtx 970 on my personal computer, I was able to get 300 equihash (300 sol/s) mining zcash with 70 or 75% power draw on MSI Afterburner.
I am not totally sure, but I believe that when I've seen people saying that the 970 draws 150w when mining, they are already reducing the gpu's TDP through afterburner, because from what I've read on technology websites the 970 running heavy games at 100% power can draw up to 220w.