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Ethereum mining @ 1GH/s: 40 x GPUs = $5000+ per month

Ethereum mining @ 1GH/s: 40 x GPUs = $5000+ per month
What can 43 graphics cards make per month mining Ethereum? A pretty damn decent $5000 or more.
By: Anthony Garreffa | Editorials in Video Cards | Posted: Jun 21, 2017 12:56 am

Heading Down the Mine

 

It has now been 14 days since I started my Ethereum journey, and how far I've come. I started out with a single 4-way GPU system that I turned into two PCs with seven graphics cards between them, and then into four systems with 12 graphics cards, and then it all went a little blurry...

 

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I'm now sitting with 12 systems spread out across 40 graphics cards, thanks to the biggest asset of them all: PCIe x1 to PCIe x16 risers. Without these, I would be stuck at closer to 20-25 graphics cards. There's a mix of NVIDIA and AMD in there, with a bunch of NVIDIA GeForce GTX 1060s because of their great power efficiency - mixed in with GTX 1070s, GTX 1080s, and GTX 1080 Ti cards. Spread throughout their own, and intertwined systems are also the cryptocurrency beasts: Radeon R9 Fury series cards, and the impossible to find Radeon RX 400 and RX 500 series cards.

 

There's a heap of RX 470/480/570/580 cards, but the R9 Nano, R9 Fury, and R9 Fury X cards are still Ethereum mining behemoths. They have special places in three different systems, with one dedicated to Fiji-based GPUs, while another two systems are dedicated to Radeon RX series graphics cards. For the systems with 750W/850W PSUs, I've used the power efficient GTX 1060s thanks to their single 6-pin PCIe power connector.

 

 

The Last Two Weeks

 

I started on June 6, and by June 7, you can see I was hitting 300MH/s without a problem. At that point, I wrote the "I'm making $900 per month mining Ethereum, I want MORE!" article, which has since blown up. This was when the bug started, and off I went on this adventure.

 

 

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After reaching 300MH/s, I was keen to double it within a few days and slowly venture up to the peak of 1GH/s of Ethereum mining. The price was rising every day, and so was the difficulty - timing was key.

 

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I had three more systems to use, so I filled them with the fastest hardware I had - but it was too much for my small three bedroom house and its weak power delivery. I reached just shy of 500MH/s within 24 hours of adding new systems but had to switch out the 1200W/1500W PSUs with smaller, more power efficient PSUs.

 

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Another 48 hours later and some PSU shuffling around, without additional hardware purchases, I hit another wall @ 600MH/s with the last system I had in parts assembled.

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