Download MSI Afterburner 4.3.0 (Also works on AMD cards now!) for Free.  Great tool!

https://www.guru3d.com/files-details/msi-afterburner-beta-download.html

Maybe use integrated graphics for the main display? You'll have no lag at all, most Intel chips have them and some AMD ones have it as well.

I think that you are better off to just pause the mining if you want to use the GPU for gaming.  It does work to use the integrated gpu for desktop and videos if you want to keep the GPU busy though.  I have done this in the past with good success.

As an AMD miner i have that fear eth will switch to pos, so i want to have some nVidia rigs for zcash mining backup incase situations go wrong, can someone help me with those questions:
1)What is the best achived speed with 1070 8g at stock settings with this miner ewbf
2)what is the max power consumption at this speed(at the wall if possible).
I want to build my nVidia rigs separated as 2x 1070 mounted directly to a 2 slot x16 board and 500watt psu 80+ , i followed this setup with amd cards and worked perfect for me and i have reached roi on most of them , so i wonder if i can follow the same setup with the gtx 1070?

I have 54x 1070s of many different flavors.  I can usually find them for about $340 a card and the rigs average about 2750-2850 Sol/s at 1KW.  This equates to roughly 460 Sol/s on average.

I can't find cheap 1060 in my country thats why the 1070 is better roi when i calculated my profits, so 1060 from your words here is much like 480 in hashrate and price , i want some advanced nvidia card like the 1070 in hashrate to make a specialized zcash rigs.
I made some 6x cards rigs but i found that my first rig which was 2x gpus has better stability , very lower problems rate and faster hashrate

Just installed a XFX 1080TI 11GB and it's running at 83c stock settings in a fairly cool room.

Is that too hot?

My MSI 1080 GTX runs at 66c.

I have a rig which is an Asrock H81 BTC PRO with a very low end CPU on it, 8GB ram, 120GB ssd and an 850W PSU

I have 2 x Gigabyte G1 gaming gtx1070s and 2 x Galax GTX 1060 6GB. All GPUs are attached via USB powered risers (even the one in the x16 PCIe slot. I use windows 8.1 and EWBF miner.

I power limit all the GPUs to around the 70% mark, overclock core to 75 and memory to 700.

I am getting 1400sol/s from this rig and drawing 500W at the wall.

As a contrast I also have a rig which uses the same motherboard, CPU, RAM, SSD but it has 5 AMD R9 290s and 1 R9 390. It runs Ethos and uses Claymore zcash miner. All GPUs are core clocked to 1050, The ones that can manage it are memory clocked to 1500, one is at 1375 and one is at 1250 (because it crashes the rig at 1375). This rig does 2200sol/s BUT it uses approximately 1800W at the wall.

So yes, Nvidia is far better for zcash mining, but it is a big investment for new pascal cards. I still use the AMD rig because I have had it for over a year mining ETH mostly. I am very tempted to sell the AMD cards to upgrade to Nvidia but I would be lucky to get $200 each for them and three of them are watercooled so probably hard to sell.

I also ask myself - how long will zcash continue to be profitable to mine? Having AMD cards ready is a good backup because although they are power hungry, they are generally still good at mining.

What i am trying to do is to build some specialized zcash rigs in addition to the amd i have , i won't sell them just a backup if eth turn pos , i think if eth turn pos the resell price of the amd will be down to the ground due to the increased difficulty that will hit all the other coins most of high electricity price miners will just sell out thier equipments , you have to imagine how many gpus eth network hold , tons