BTW, ATX power supply 80A 

Thats 17 kW using 220V

Does it really use so much power for 300 GH/s ?

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BTW,

what kind of chip is used on a CM4?

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BTW,

please note that last block has been paid in part because there are no more confirmed coins, but pool has 100 BTCs to be confirmed (120 blocks) then it will pay the remaining.

I'm writing this for the newcomers, because first time it happens it can be a little confusing to see what's going on

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Ciao,

ho ricevuto un messaggio su localbitcoins.com da parte di un utente straniero, scrive in inglese, che sta cercando di vendere dei BTC in cambio di contante a Roma.

https://localbitcoins.com/accounts/profile/tigerstyle007

Questo e' il suo account su localbitcoins.

Metto questo messaggio al solo fine di dargli una mano, perche' io sono di Torino e quindi posso fare ben poco.

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First of all, we're at four today

second, I'm glad you like the pool, I'm just the unofficial PR man and an happy sucker here...

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Three 

Holy s***t!

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Two blocks in a few hours and a good 400 GH/s more hashing here!

Welcome aboard Mr. 400 GH

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Someone a few days ago in a different thread suggested m-discs as a long term storage solution.


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WuLabs,

you should try HHTT

An Avalon mines without problems with difficulty 512 for a fee of 0.36% and pool pays half of block fees to the miner who finds it.

It is a PPLNS pool, so it takes a while, two days more or less, before you earn your fair share of each block found.


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Hi kangasbros,

I'd like to point out a few annoyances:

- site does not remember location, sometime it requests to access my location, sometime I have to type where I live

- right now, inside "Buy bitcoins online in Italy" my offer at 90 EUR/BTC is not shown, but I see an offer at 94 EUR/BTC by topelius, why?

- if I search all online offers in Italy I see just a couple and I don't see mine

- if then I click "seach by payment method"/"PostePay" I don't get any, but I get a couple of PayPal ones ?


Apart from these problems, your site rocks and I really like it.

Thanks!

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VAT + customs duties. 

Anyway, let's think about good things now that batch #2 units seems to be arriving...

The biggest question, after unpacking your unit and starting it up for the first time is: where do I go mining now?

If you have at least 5 units, you should certainly try to solo-mine for a while, it is the way it was in the beginning and true to the real spirit of bitcoin.

But if you have less than 5 units... well, I've got a shameless plug for you!

There is a nice, minimal pool which is, right now, searching for a few more GH/s to help it tame the continous difficulty increase we're living in.

It is HHTT, try it out for at least a couple of days, it is PPLNS, so it needs a little to pay your fully owed share of each block.

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ps. I'm mining on it, so I have a vested interest in reducing pool variance.

Bel thread,

arrivo tardi, pero' voglio aggiungere una cosa che ho visto solo di sfuggita, ovvero il pro quota giorno (a volte indicato anche pro rata die) che e' il vero nemico dei contratti di fornitura elettrica, per lo meno di quelli a maggior tutela.

Ora, il pro quota significa che se il costo del kWh e' di 0,15 per i primi 1800 kWh la cosa e' da intendersi che si hanno a disposizione 1800 kWh / 365 gg ovvero 4,93 kWh al giorno a quel prezzo, poi si sale nella seconda facia a 0,20 (butto dei numeri tanto per) dove se ne hanno a disposizione che so, 1000, sempre da dividere per 365 e poi si sale ancora.

Ecco che, anche con un assorbimento di solo 500 W, si arriva in fretta a sforare la prima soglia, bastano 10 ore di funzionamento continuo.

Pertanto, se si vuole minare, come gia' indicato nelle risposte precedenti, occorre come minimo un contratto di fornitura per azienda, dove il costo e' "flat", un tanto a kWh e se poi si riesce anche a scaricare il costo della corrente... beh...

Se poi si ha un fotovoltaico sul tetto con potenza maggiore o ugale alla potenza usata per minare i costi si riducono, anche di 1/3 considerando 8-10 ore di produzione del FV.

L'accumulo pero' non e' conveniente: le batterie costano tanto, durano poco (relativamente poco, quelle a scarica profonda e cmq sono oggetti non pensati per essere caricati e scaricati completamente ogni giorno) e sono inquinanti, quelle al piombo, oppure costano tantissimo quelle al litio.

Il problema dell'accumulo e' il problema piu' grosso, a livello mondiale, delle energie rinnovabili.

Oggi come oggi non c'e' un metodo semplice ed economico per accumulare... a meno che uno non preferisca farsi un 30-40 kWh di accumulo invece di comprarsi un SUV nuovo!

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Hi Augusto,

received my missing units last friday.

Thanks!!

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ps. and as I said earlier, no refund necessary.

Being that CM4 uses 1.5 times the energy of Avalon units with similar hashing power I'd say that it contains some high end FPGAs that Enterpoint can buy with a substantial discount because they're ordering a ton of them for some other project they're doing.

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Aand two more today

But pool needs more hashing power, with difficulty rising so fast

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So, to sum it up, a CM4 unit:

- costs 24 thousand € / 350 BTCs
- uses 6kW of power
- can do 500 GH/s

Is it right?

If so, at a difficulty of 75 millions, such a unit would produce 3.5 BTCs/day for a ROI of three months more or less.

6kW of power, though, is a lot of power and puts it in the same league of the Avalon where ten units use that much and are capable of 700 GH/s.


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By the way a power consumption estimation would be usefull as well, in particular given the price tag.

I'm talking about the unit without Avalon chips or the CM4 if this is its name. 

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I don't know if anybody noticed... two blocks today 

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Same here, ordered 5, 2 shipped and received so far.

I don't understand, given the cost of shipping, why my order was splitted.

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Pool keeps hashing around 800 GH/s and blocks keep coming in nicely...

Now, a sign from fireduck would be the topping on the cake...



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