A little bit of space between the cards is good, but not for long term use. This was purely up and running for a few days to see the power consumption and heat levels, as we cleared out the other rooms and acquired new hardware. Oh, and lots and lots of troubleshooting. I was doing 15 hours a day at this point...
Crazy, eh? Don't worry, the cards were only used like this for around 24 hours before it was all moved up onto new shelving - and we also shuffled a bunch of them off, so we could make way for the new GTX 1060s.
The first set of them...
The entire stack of cards that I purchased in the last five days, on top of the Radeon R9 Fury/Fury X, Radeon RX 400/500 series, and GeForce GTX 10 series, oh and TITAN X cards.
This is the haul of PSUs that are split between what Corsair supplied for other builds, on top of Corsair PSUs that I purchased over the last few days. The Corsair PSUs have been rock freakin' solid, with the AX1500i powering the 4-way GTX 10 series system that has two GTX 1080 Ti, one TITAN X(P), and one GTX 1080 graphics card.
Even More Testing, But We're Nearly There
I found that some motherboards didn't like five or six graphics cards installed, but there were some that would take four graphics cards with PCIe risers if the main x16 port was used. But not with a PCIe riser, an actual physical installation of a graphics card, meaning it sometimes used the PCIe x1 port next to it. Some of the motherboards had a x1 port behind the main x16 port, meaning I could use between four and five cards in even the most simplest or old PCs.
Don't try this at home, folks - well, do try it - just not like this.
Some shelves that Ryan Hooper (our resident case modder) built for the Ethereum mining machines. I have four of these holding 20 graphics cards total, but we also moved into other shelving as well as the requirements went up on the amount of systems being used at once.
Aaaand another one.
Power Efficiency is KING = Opens the Door for 1GH/s
It's almost like I was being mocked by my Ethereum mining addiction, as I shuffled around the systems for the big move and I hit 850MH/s... breaching 900MH/s for a brief second. It was after this that we decided to do some tweaking with the systems and the networking, and it all fell apart.
12 hours of troubleshooting split across a very long night and a seven-hour straight stint the morning of the day I wrote this article (it's now 9PM, and I've been here since 8:30AM solid work), and the systems are up and running, and I've easily breached the 1GH/s barrier. The barrier felt amazing to break through, with a new milestone of 1.18GH/s peak, stabilizing at 1.1-1.15GH/s. Amazing stuff.
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United States: The Ethereum mining @ 1GH/s: 40 x GPUs = $5000+ per month retails for $XXX at Amazon.
United Kingdom: The Ethereum mining @ 1GH/s: 40 x GPUs = $5000+ per month retails for £XXX at Amazon UK.
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