We are looking for someone who can provide us with this information. We solely just have money to invest.
Then you've got a bit of work cut out for you, don't you.
The ASIC chips are the easiest. The most proven designs are the Avalon and Bitmain chips. Q48 form factors with good cooling. the larger '1 chip solutions' like what Cointerra uses are effective, but harder to cool, and more expensive per unit to manufacture and replace, should you end up with manufacturing defects.
Keep it simple. Just because it's 32 degrees celcius in a lab doesn't mean that these machines will be run under those conditions. 50-60% overcooling is recommended. The miners in the US southwest will appreciate the ability to run their systems at rated speed and still maintain proper temps at the board.
Speaking of the boards themselves. 4 layer PCBs are the norm. Design once, revise often. Altium Designer should be in your toolbox as far as creating the PCB design, from there you can confer with a manufacturer who will take the gerber designs and refine them for a fee. Trust these guys, they see more boards come across their desk than you'll ever know. They know what works, what doesn't, and how to make your design electrically and thermally efficient.
Don't skimp on materials. There's no reason NOT to go with better capacitors and resistors. 5% sounds like a little bit, but in the life of a hashing chip, it's the difference of a half a volt or two, depending on where it's placed.
DO try to build a rackmount with a redundant power supply. This is sorely lacking in the mining world. Redundancy is uptime, uptime is money.
I'm not a designer, or a chip manufacturer. I'm an assembler. I've built, rebuilt, and revised Avalon designs for my own purposes... but I ended up spending way too much money doing so. Take my advice, or not, doesn't matter to me. But I think Reliable over Bleeding Edge is what the mining community needs right now. Hashrate above Crashrate.
Build a miner that's going to last years, not months. Make it modular. Make it upgradeable. Make it so we're not replacing it with the 'next best thing' two months down the road when the difficulty jumps to it's next astonishing level. A rackmount with a simple backplane, enough throughput to push the hash, enough power to run it three times over, and enough cooling to keep it at 45 celcius in desert heat.
Man, do you guys have your work cut out for you.
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