Quote from: keenan84 on July 30, 2013, 10:50:51 PM

i dont think the psu really matters honestly. dont waste money on anything crazy. just get a decent well priced unit and you will be fine, just wait for KNC to tell us the specs first.

It's an $8k device. And not only that, a high efficiency PSU will probably pay for itself in electricity in less then a month.

Quote from: Anenome5 on July 30, 2013, 10:40:36 PM

Really, do you have a particular brand/series in mind. I was reading about certain platinum-efficiency rated PSUs lately, curious what you guys would put your eye on.

I don't know if the brand matters that much. Probably not that big of a difference between gold/platinum ratings either.

Also, there probably isn't going to be any harm in waiting for their actual recommendations.

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Quote from: erk on July 30, 2013, 10:37:35 PM

And what if when they test the chips it turns out to be well over estimates?

Well, first of all if it's really over 1kW, they should really use a dual PSU design (one PSU for two of the four chips)

Second of all I don't know why so many think the fact that BFL fucked up means everyone else will fuck up too. Bitcoin was around $6 when these guys started and around $100 when KnC got started. That means the total value of all mined coins is a lot higher, which means a much larger mining industry overall.

That larger industry is going to attract people who know what they're doing as opposed to amateurs who have never designed a chip before.

Bitsyncom has obviously had customer service issues, however most people who bought batch 1 and 2 got their units. And unlike BFL they not only matched specs the performance is about 33% faster (80 Gh/s vs. an advertised 60). Their systems work fine with normal PSUs so they were likely within their power estimates.

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Laughing all the way to the bank with batch 1 and 2 buyer's bitcoins who still don't have units?

Most did get their units. Avalon customers are certainly a lot happer then BFL customers, that's for sure.

There's nothing wrong with being skeptical, maybe there are issues involved with bitcoin chips that aren't involved with other types of ICs. However, lots of other people have been able to produce chips without anywhere near the problems that BFL has had.