# Build a 5 GPU mining rig for FREE

**URL:** <https://forum.zcashcommunity.com/t/build-a-5-gpu-mining-rig-for-free/18454>\
**Category:** Mining\
**Created:** [July 2, 2017, 8:30am UTC](https://forum.zcashcommunity.com/t/build-a-5-gpu-mining-rig-for-free/18454 "2017-07-02T08:30:20Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![stargate](https://avatars.discourse-cdn.com/v4/letter/s/9d8465/32.png) [@stargate](https://forum.zcashcommunity.com/u/stargate)\
**Post date:** [July 2, 2017, 8:30am UTC](https://forum.zcashcommunity.com/t/build-a-5-gpu-mining-rig-for-free/18454/1 "2017-07-02T08:30:20Z")

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Hello,

I have everything to build a rig, mobo, sever case, cpu, ram. The only expense is the graphics cards. I planning to buy 5x Nvidia GTX 1070s because the GTX 1080 does not come out well in price/performance comparison.

I could get a GTX 1070 from wholesaler for about 320Eur new with 3 years of warranty (which certainly will be needed if the cards are running 24/7 mining coins) so with the pcie extending cables we talking about a ~ 1700 Eur investment.

I have the money to buy these already but here comes the fun part I want to build this rig 4 FREE because as we all know “the best things in life are free” 🙂

So my idea would be to buy a certain amount of ZC/Bitcoin/Etherum etc. wait until they go up in price to a point where I make a profit to buy the cards and then sell it.

Would Zcash be able to go up that much in the next 2 month to make my investment worthy already? About bitcoin I doubt that it will fall back under 1K and it is just too risky to buy now.

For those who are experienced buyer/sellers here: which are the current exchanges where it’s worth to do it (no hidden fees, no fraud)?

Would it be worth buying bitcoins on [https://www.bitstamp.net/](https://www.bitstamp.net/) and then convert them to Zcash?

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**Author:** ![godanubis](https://avatars.discourse-cdn.com/v4/letter/g/9e8a1a/32.png) [@godanubis](https://forum.zcashcommunity.com/u/godanubis)\
**Post date:** [July 2, 2017, 1:40pm UTC](https://forum.zcashcommunity.com/t/build-a-5-gpu-mining-rig-for-free/18454/2 "2017-07-02T13:40:35Z")

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> [@stargate](#):
>
> I have the money to buy these already

Could have done that last week, it was 4 days in a row where zcash was down to ~250 and then up to ~330 , next day same thing.

you could have made 2-3 cards easy 🙂