Quote from: Mark899 on October 22, 2017, 05:57:49 PM

Oh, I gotcha.

This forum was suggested by a Youtuber for technical discussions on builds, so I'm not sure if I'm in the right place or not.

I was looking for a place to have technical discussions on different rigs, and receive help as I go through the process of building, software, etc... To become a part of the community.

If I'm in the wrong place, is there a good place that I should go?

Thanks

The vast majority of your "new to mining" questions have likely already been answered somewhere else.

Even if you want specific help tailored to your exact selection of parts, there's plenty of resources in this forum and elsewhere that you can look at. (There are even some guides designed for newcomers such as yourself.)

That being said...

Firstly, now is not an amazing time to build a new GPU rig from scratch, especially if your power costs are not extremely low or free. Calculate some basic profit projections, and always consider changes in difficulty and crypto prices. Keep in mind that there is no guarantee that you won't end up losing money on this venture. If you're only in it for the experience, then this won't be a concern for you.

About your build:

That PSU is overkill unless you're certain you'll be expanding beyond 1x 1070. There are high quality PSUs that won't cost as much as that 1000W one.

For a profit-oriented system, the less money you spend on components that don't directly contribute to your hashrate, the better. At current expectations, a single 1070 would have a hard time paying off its own initial cost, plus the rest of your current build.
"Possibly" a second 1070 or doing some part-time mining on your 1060 doesn't quite cut it. If you're building a new system for the sake of mining, using only 3 cards is a mistake, in my opinion.

Now, if you have an already existing system that can support another card or two, then that'd be great, buy some new cards, maybe another PSU, but that's it. I would not spend lots on new hardware if I only planned to mine on a small number of mid-tier cards.

In terms of the math, your hashrate/initial investment comes down to:

Hashrate/(total cost of cards+Overhead), with Overhead representing your PSU(s), motherboard, CPU, RAM, SSD, risers, etc.
Again, keep those overhead costs as low as you can without sacrificing functionality. (For example, I'm sure you've heard to avoid skimping on PSU quality.)