I was going to say something similar.  If your machines behave like mine, I'll bet you can get the same performance, or damn close, at a much lower overclock rate.  I'm getting 430-435 gh/s at 600, and only a few gh/s more at 610.  For those few gh/s, I was "paying" with an additional power draw of about 3 watts per gh/s.  

If you are oc'ing to 652, I'll bet you are drawing over 500 watts at the wall, and may be paying quite a bit in electricity for only a couple more gh/s than you would get at a lower (more efficient and less risky) overclock rate.

What are the e-mail addresses you are looking for?  I have a partial list of the leaked HF addresses and can cross-check for my portion.  In the thread cited above, you'll also see others who received other parts of the HF customer list.  Mine is of addresses beginning with GAR and ending in JER.

Personally, I think it sounds like you have a f@cked up board, but if you posted a picture, I think we could be sure.  Especially if some others with 1.2 boards can chime in.

I have two BJ's, one with a board marked Rev. 1.1 and one with no markings that I've found (1.0?).  I am running them at 610.  

Even though it cost me a few satoshis, I did the experiment:

The Rev. 1.1 board draws 485 watts at the wall (well, at the surge protection, actually).  The unknown board draws 470.

The Rev. 1.1 board seems to hash just a little faster on average, but we're only talking a handful or less g/hash.

At 600 clock rate, the Rev. 1.1 board draws 474, while the no-label board draws 464.  

Since I don't think there's much of a detectable difference in hashrate between setting the clocks at 600 or 610 (a couple or few g/hash per machine... i.e. about 3 watts per g/hash), and given the risks of overclocking, I've gone down to 600.

I'm thinking that if Rascul thinks he chose manufacturers wisely, maybe he'll respond to that guy in the West African refugee camp.

Nothing from HF that I know of on upgrades.

Nothing from HF that I know of on MPP.

Hey now.  I never thought I'd be the Windows Defender(tm), but in the interest of fairness, the hashrate graph from Eligius for my Blowjobs is hard solid as a rock.  Really.  Cranking along at about 430gh each with no problems to speak of for what, almost 10 days now?  I can't complain a single bit about that aspect of the BlowJob experience.

Ding!  +1

That would be true a few months ago when more people around here saw rainbows and unicorns (at times including myself).  Maybe there will continue to be some buyers for equipment bigger than toys (toys=Jalapeño, Block Eruptard) that demonstrably has a zero chance of ROI without massive BTC value increase, and as long as there are, I suppose there will be offering.

But the action is moving elsewhere, my friend. If they aren't being written already, the news stories about the death of profitably mining-at-home will be written soon, and the broader public will eventually learn through the media what we have learned the harder way. the dumbs noobs will dwindle too when it becomes conventional wisdom that, like making pasta, it makes more sense to buy at the market.

Why package all this sh*t up individually, sustain lawsuits, deal with customer support, shipping, yadda yadda yadda?  If you want to cater to the consumer market, sell timeshares.  Set up resellers if you want, to deal with the pesky public.  You think Hashfast would mine for itself by packaging every board in a BJ with all the attendant costs?  Hashfast data center with 10,000 BJs, each hand made?  Hell no.  They'll go industrial scale and form, shed the angry customers, sell shares, and profitably mine with the remaining hashpower.


And PS:  You can look in my history and see I've never been one to make "self-mining" accusations.  But with all the other large scale operations taking shape, and when KnC says it is building "one of the largest data centres in the world" and wants to shift its pending orders over to hosted hashing.... sorry, it's over.

Yeah.. I'm not a KnC customer - BFL (ugh) and HF (ugh) - but when I saw this, my first reaction (and it remains my reaction) is that the consumer-miner is out of business once the present generation of machines is no longer viable - those are already delivered or whose delivery is obliged by contract. 

We're walking dead.  Zombies.  Mining will now be done by chip companies, probably allied with capital for datacenter fab and operation.  You might buy shares, but shares that will only ROI with steep BTC appreciation.  It's over.  And I barely even started!

"KnC baby" doesn't care about you anymore, except as a source of ancillary revenue.  They are building one of the world's largest data centres... 

You are lucky.  I can't get mine that high.

On the watchdog business, fubly, if you are using 3.12, try using 3.11 or, as people here say, 3.9.0.  I got watchdog errors on 3.12 when, at the same clock rate, I've never seen a watchdog problem with 3.11.

Edit:  Sorry about 3.9.0 version confusion.

I'm thinking this is the end of 'consumer' mining.  We're dead. Zombies for another year and change, maybe.

Except as a true "hobby".  A "true" hobby in the sense of it being a known money-losing proposition from the beginning.

There's no way to profitably make and sell hardware that is also profitable to your customer anymore. And this will only worsen.

Watch the other guys clear their order backlogs and follow into the "self-mining" business... if they have the money and functional technology.  

Yeah, sure, BFL can still retail ridiculously overpriced jalapeños, and others can do the same, as consumer curiosities... no zitty teenager will be without a few gigahashes that will eventually earn enough to pay for some porn... but as miners, we're basically redundant now. Hopelessly outgunned.  The Polish cavalry versus panzers and stukas.

The chip makers, and associates, will build datacenters and quickly come to control the lion's share of the network hashrate.  They'll sell shares to people at a certain price - one that covers their cost and provides an immediate profit - those shares will be for people who want to gamble on bitcoin gaining value, because they will be priced at irrational levels (i.e. no ROI without heavy BTC appreciation).   It'll be about like buying BTC.

Queue the fat lady!

I dunno what to say.  I've got two pretty different BJs, arrived at different times, built in different places, different "rev" stickers on the boards, different hash rates, and 3.11 works for me.

Cables or USB controllers?  Are you doing other stuff on the PC?  (Mine only controls BJs, plus a little Litecoin mining on the GPU.)

My experiments suggest you want the cores warmer, whether or not you overclock.  Mine seems to mine a little faster around 70c.

Guess it's not so Easy2Mine after all.

You got two options (edit: see also dbbit below, who disagrees):

A) You can wrassle with the raspberry pi and follow HF engineer's advice, and I have no reason to think it isn't good, or;

B) You can getchyerself an old PC, the stock version of cgminer 3.11, switch the driver with Zadig (easy), and with a tad of patience hotplugging it a couple of times, unless you have a bad machine, you will be up and running, STABLY.  You can also probably overclock it, depending on your huevos and chips.

To me, it's a no-brainer.  No offense, Engineer, but I just don't like the whole rpi thing...

Also, I've had zero downtime since setting the machine up - except when I flirted with 3.12, and a few voluntary minutes of downtime when I was trying out things in the .conf file.  

The PC might not be cool, but dood, your BJ is presently capable of 'printing' maybe USD $65 a day.  Do you want to leave that money on the table for a number of days while you hassle with the $39 Raspberry Pi controller?

The optimist inside me wants to say that late this week they are going to start shipping Batch 2 (they were confirming addresses), but NOT before they at least simultaneously do SOMETHING to address the MPP and upgrade board situation.

I feel like the Rodney Dangerfield of this thread.  Don't get no respect.

Fellas, I've been saying for days that on a PC you need to use 3.11 because 3.12 is subject to crashing (apparently related to the firmware "watchdog" and cgminer not getting along).

But if you guys wanna keep ignoring me and keep the network hashrate a little lower with your offline machines, you can be my guests... 

So do we have any reports of stable overclocking above around 610?

I can use 610 comfortably, although I'm out of town for a few days and turned 'down' to 600 while I'm away, for a little bigger margin of comfort.

ckolivas says 612.

When I tried to bump up to 620, my error rate went up and it wasn't looking good.  I backed down without trying very hard, though, not eager for the down time or to break anything.

For those of us in batch 1 that didn't try to refund, we've mostly gotten hardware in the last few days.  So the priority is to get that hardware up and hashing reliably, and to start understanding its idiosyncrasies.  So people are focused on that.  Nuts and bolts issues.

But all the other issues haven't gone away, especially the MPP. These BJs alone are not going to ROI, even for USD purchasers.  People are just focused elsewhere, trying to get their hashing operation in order.  They'll be back here soon, probably more focused than even on the MPP.