Hey Marco,

Just to let you know I'm a Sr. Member now. I don't know if the bot detect it or if you have to change something for my next posts.

I've changed my signature to the Sr. Member one :-)

I do it as I figure others read it.  Most of time this thread moves so quick it never has it more then once per page.  And I only post in here when I need to talk to Macro or Bitcoin Boys or something of that nature.   When I do post there is a reason behind it is not just to post positive.  But I like the positive ending in here myself.

This campaign has been good to me, so I'm not afraid  to put that.   And no posts in this thread don't count so zero issues there.  

He would pay with nice words or other here.... but why not thank him for doing it is my feelings?

*Edit this part is different but did not want to post new post.  Anyone having trouble seeing their stats?

GAVE UP ON GETTING SP20'S super quiet.   settled with the stock fans and ran at 6% speed undeclocked

Don't forget the controller and fan power, which could easily be another 25W (becoming 28 more at the wall).

The S5 is inefficient for the chip, because it's running at the top of what's possible for it. The S[odd] miners always did that, and the S[even] miners came later with higher chip density and lower per-unit power. Inefficient or not, the S5 was the most efficient machine available at the time, and nobody's really beaten it in a cost-effective way in the last 8 months. Sucks to say, but that was a pretty optimal design when you consider $/GH and that efficiency was already "good enough".

I'm betting they announced the chip as a preemptive strike on Spondoolies or LK Group announcing new gear (speculative, of course). Quite possibly they're only toying with factory samples now, which is why they aren't announcing an S7 design or any performance curves beyond the one data point. Or they're only letting slip a little bit of info and they've actually had them for months and just aren't telling everyone about their already-deployed S7 stacks because they don't want to yet.

pull and while it is quiet it is not quite correct. 

 next will be push- pull

OP updated. Some items have been sold!!
Still some great things left.

 18 chips per string, that's a given from the BM1385 published specs and Bitmain's long-standing tendancy to run their new designs at "max hash/max volts".

 That works out to 2.34 TH at about 540 watts "at the wall", on a 2 board 2 string per board "same as S5/S3/S1" form factor unit.
 I suspect the actual final announced specs will be a HAIR off from that estimate, more on the power side than the TH side.

 I would guess the unit will initially be priced at 3.5-4 BTC, but that's a LOT more speculative and I wouldn't be shocked at anything up to 5.


 Release date? Whenever Bitmain finishes replacing their "farm" S5s, or when a competator shows up with working hardware or at least announces working production of chips (other than SFards, whish is starting to make me think "Sfarts" of late) of those competators that sell to the public.

Are you aware that you can turn this featurr of completely and it does not affect the blockchain at all?

Do you know many wallet clients have their own rules for peer connection? Thats essentially the voting system you're looking for.

I think we're done with this FUD....

I doubt the factory fan is 440dB... 

S5, or S5+? The S5+, like the S4+, I have a hard time understanding. Now if instead of designing an S5+ with 7.7TH in a terribly hideous and cumbersome form-factor and very little improvement on technology already eight months old, or an S4+ using more-than-year-old chips in a mediocre and highly-overpriced offering worse than any miner sold this calendar year, they had retooled the S4 build around the BM1384, it might have been something. A 5x17 string instead of 3x17 of BM1382 would have built a 4.2TH miner in the same case, same heatsinks, same PSU. That would have been worth buying. A clumsy behemoth trying to extract 1KW from a box the size of an S1 and with about a 10% power savings over the stuff they were shipping last Christmas, with no good way to power it and no good way to even shelve the thing safely? Yeah, definitely a mess.

I got about a dozen S1 sitting on the shelf waiting, and several stripped-down dead S5 chassis as well.

It's a function of how much heat needs to be removed from the box.  The machine generates X amount of heat, thereby requiring Y amount of airflow to remove said heat.  Once that cfm requirement reaches a certain threshold there no way to keep it quiet without going crazy and fabbing up a water cooling system or something.

Your false statements have been proven wrong over and over again, but still you keep on going with them.

He's dropped on and off before, and his hash rate has fluctuated with the seasons.  I'm sure he'll be back at some point.

Good that I know so what? All of that was hopes and opinions.

S1 upgrades?  Who still has those ancient things?

A DC-DC converter is one option and probably the easiest way to drop the voltage as you can use your existing PSU. The cost is the price of the converter and the added inefficiency. A better solution would be able to adjust the voltage of the main PSU down while retaining it's efficiency. Weather that is possible or not I do not know?

Another approach I am considering, but not for the faint hearted, is to patch additional BM1384 chip pairs from another S5 hash board into the string to reduce the voltage on each stage, not very practical to replicate but interesting as a one off.

With 2 S5's, you have 4 hash boards, so you take one third of the 4th board( 5 Chip pairs) and patch them into the other 3 boards increasing the chip pairs from 15 to 20 and so reducing the core voltage on each chip from 0.8V to 0.6v. Easier said than done, but on the list of possibles.

Rich

Edit  Yes that would work, a bit expensive & not adjustable. The ones that Phil identified earlier in the thread are probably a better bet.

I hope they keep the same heatsink size. It's a fairly practical power density and I would not be opposed to seeing the S1 formfactor become somewhat of a standard for small miners. S5+ is a disaster.