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1  Bitcoin / Hardware / Re: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs on: August 15, 2014, 04:41:26 AM
My vague statement was correct. I don't reveal the full details on purpose.
In about 45 days (October batch) the SP30 will be 5.5 THs
(The limiting factor will remain the PSUs. The RockerBox has much more potential for over clocking)
This will be done without mask fix, just production tuning.

jtoomim more or less got it right.

Guy

My point is that TSMC will not have 'accidentally' botched 3 separate batches of lots (August, September, October). Remember, these are the same 28nm lines that Qualcomm and Broadcomm use. The notion that it is TSMC's 'fault' is simply a convenient excuse to a design mistake. I have no doubt that TSMC is capable of a retarget of your LVT devices to meet your original performance target. However, that 10% increase you were hoping to achieve with a post engineering run retarget has disappeared. Guy, I applaud your ability to perform damage control.

jtoomim, yes my name is intentionally chosen to troll. That doesn't delegitimize my arguments. Source: I run fab sync for a major US semiconductor company. You don't have to believe me, but you can do your own research on the topic.
2  Bitcoin / Hardware / Re: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs on: August 14, 2014, 11:28:08 PM
I've successfully migrated our SP30s over to our 258V supply. Performance is up.

Device ID     Hashrate (cgminer)      AC power usage     Top PSU lim (DC)Bot PSU lim     J/GH
Mine    4527 GH/s3024 W136213670.668
Wanna14476 GH/s2928 W134513510.654
Wanna24459 GH/s2960 W134413470.663
Wanna34470 GH/s2992 W134913490.669

Thank you for the review. It seems that the competition is spreading lies about SP30 power consumption.

If you are talking about the knc newsletter, it is badly researched.

Quote
0,57 J/GH - KNC Neptune - 1950 watts at 3400 GH/s (reported average)
0,62 J/GH - Bitfury BF3500 - 2200 watts, 3500 GH/s (stated, unconfirmed)
0,76 J/GH - Spondoolies SP30 - 3200 watts at 4200 GH/s (reported average)

It also claims bitfury be 3500 does 0.62J/GH, which not even bitfury themsleves claim (it is ~0.775)
Edit:
Most of the reports I've seen of the 20nm competition are over 0.6 W/GHs
We're overclocking the extreme slow corners 28nm ASICs we got. The power ratio for October units will be 0.55 W/GHs

For those of you who don't understand semiconductors: You do not get multi lots and multiple wafers of an "EXTREMELY SLOW CORNER." Stop letting Guy take advantage of your lack of knowledge. Given the orders which they have in the pipe and what they have communicated, I would guess there are AT LEAST 12 lots (25 wafers per lot) in the pipe. You do NOT get 12 lots processed systematically to a slow corner unless you deliberately asked for it.

You're welcome
3  Economy / Securities / Re: 0.19 J/GH - CoinBau looks for investors in German mining technology on: August 01, 2014, 09:08:38 PM


ASIC Miner said the same thing....
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