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Showing 17 of 17 results by calichomp
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Topic
Board Hardware
Re: 21 co introducing bitcoin [mining+] computer for $399.99 (unofficial thread)
by
calichomp
on 22/09/2015, 22:28:41 UTC
.......

As usual, you are very well informed, Guy!  Wink

To be fair, with 0.16 J/GH this would be the most efficient chip in the wild so far.
The 0.6V BM1384 value is just quadratic extrapolations of the 0.66V value. Try it, it fits perfectly. IMHO too perfect for a measured value.

Anyway, 21 really screwed it up with the GH/mm2 value. In best case they have here about 2 GH/mm2 (for sure not with 0.16 J/GH). This is a good GH/mm2 value for 28nm, but for 22nm it should be 3 ... 4 GH/mm2. Otherwise this chip will be simply too expensive in production to be competitive for standard miners.



You have got to stop thinking about conventional economics here. The IoT bandwagon is impervious to conventional economic considerations. After all, folks are going to just be so happy to pay an extra $25 for their light bulb, it doesn't matter if the ASIC price is a little high. The fact that it's going to be part of the IoT relieves it from those pesky metrics.

If it's connected to the Internet, it MUST be great!!!  Smiley Smiley Smiley

Isn't Raspberry PI 2 + Sidehack's 1384 dongle is essentially the same for quarter of the price ?

Observe: this is the type of product philosophy that is likely to put you in a position to have to fire-sale your company and dilute yourself off of your own cap table.
Post
Topic
Board Hardware
Re: [ANN] Spondoolies-Tech - carrier grade, data center ready mining rigs
by
calichomp
on 29/07/2014, 22:13:49 UTC
It's quite late in Israel, I'll answer more questions tomorrow.
Long days ahead ...

Guy

Thanks for taking the time to explain, and with the compensation plan it just goes to show the type of company Spondoolies-Tech is.    Other companies just try to hide the problem and play stupid...straight up and honest is the way to earn continued business.   I intend to order additional units.

Thank you for the hard work, keep it coming!


Thank you Dan. Appreciated.

Lots of this after keeping quiet for so long.

Translates as:
Guy Corem logged in as random shill: Good job guys! Keep up the good work.
Guy Corm logged in as self: Thanks, self. Much appreciated.

Post
Topic
Board Pools
Re: [8500 TH] BTC Guild - Pays TxFees+NMC, Stratum, VarDiff, Private Servers
by
calichomp
on 08/05/2014, 03:16:45 UTC
I have heard that Spondoolies is testing their miners in pools right now.  I have also heard buzzing about the fact that they are not yielding as many solved shares as should be theoretically possible.  Could this be because of a hardware bug in their chips? 

I have requested a refund on my miners for them and have swapped to buying up miners on eBay and buying coins at the current low price.
Post
Topic
Board Hardware
Re: [ANN] Spondoolies-Tech launches a new line of ASIC miners - Best W/GH/s ratio
by
calichomp
on 08/05/2014, 03:07:40 UTC
Spondoolies, does the SP10 firmware check fans activity?

I'm about to test my air chamber and i'm ready to remove the fans (PSU fan is still intact)

Let me know if its a problem with the FW.

Thanks


No, we monitor the temperature of ASICs/on board, not the fan activity.
Good luck!

Is this something you might look at in the future? I have read the fans run fulltime 24/7 ... can you update the firmware so they are PWM regulated? I'm sure this was mentioned way back in the thread, sorry if I missed something ... two SP10's arriving soon, so I'm interested if the noise can be 'contained'.



Do you mean control the FANs based on system temperature?

From tests we did, it is very hard to even define wanted behaviour to control the fans based on temperature.
The fan speed effects the hash-rate. It's not binary "too cold/too hot" system. The more you turn on the fans, the colder the ASICs, the less leakage you have, the bigger the hash-rate. Even if we set a desired temperature "threshold", it's really annoying when the system starts changing the fans. It's easier to set "quiet/noisy" based on location of the miner in your apartment and then have no change.

You can write to PWM values once the system is stable (just be careful of course or it will thermal shut-down) - it's in this thread (and in the miner-gate code) how to do that.


I plan to unplug the fans entirely.  Call it coarse PWM control.  But, it has worked well for my Terraminers and Baby Jets.
Post
Topic
Board Hardware
Re: HashFast announces specs for new ASIC: 400GH/s
by
calichomp
on 24/12/2013, 02:52:09 UTC
Breakout the pitchforks.
Post
Topic
Board Hardware
Re: HashFast announces specs for new ASIC: 400GH/s
by
calichomp
on 27/10/2013, 16:04:18 UTC
I don't think pulling wire is that likely, at least probably not with recent construction in a place with code enforcement. Standard here would be a 120v 20 amp circuit on 12 gauge romex... I'm not an electrical engineer, but shouldn't that be sufficient for nearly 2000 watts constant load?  I've done a little bit of homeowner construction to code, and they make you run a separate circuit for just about damn near everything these days, except lights...  I guess the concern would be if you've got an old 15 amp circuit on skinny little wire or hooked up to your air conditioner....

120V, 20A circuit is solid for 1920W continual, 2400W peak.  Most household outlets, branches, and breakers are 15A though and that means 14 AWG.  Might be better in newer construction but wire is expensive and builders are usually cheap.

If someone is looking to do an upgrade just do it right with 240V, 30A branch.   An outlet like this is good for 5.76KW continual and ebay has tons of cheap used PDUs which have a NEMA L6-30 plug.
http://i01.i.aliimg.com/img/pb/752/466/477/477466752_353.JPG

Probably good for at least 3 Sierras maybe 4 depending on what final wattage ends up being.  My guess is HF puts some overhead in the PSU so 1700W of PSU doesn't mean they intend for it to draw 1700W.  Drawing say 1300W would keep the PSU at 80% load.

Please don't burn your house down over this shit, people.
Post
Topic
Board Hardware
Re: HashFast announces specs for new ASIC: 400GH/s
by
calichomp
on 11/10/2013, 15:19:40 UTC
 only after i get my Order #1, Batch #1 though.  Wink

what day will that be?



no one knows exactly for sure but i'm still hoping for last week October.

If you will get the first, first one.  And you HOPE that will be last week of October.  AND the crypto guy gets his after you.  How are people still expecting to see shipping in 8 days? 

I know you're getting a bit defensive at my insistence; to a fault.  But, the holes are glaringly obvious.  As a pre-orderer, I am starting to get antsy at your defensiveness and lack of concrete facts when it comes to the system build (after the chips, thanks for semi 101).  And I'm hoping everyone else gets the same impression.  That is the only way we will get some concrete information aside from 'hope' 'trust' 'maybe' 'soon'. 

Stop flailing your arms and steamrolling and answer with some facts.  Or, if you insist, pipe down and let someone with HF_ in their name answer.
Post
Topic
Board Hardware
Re: HashFast announces specs for new ASIC: 400GH/s
by
calichomp
on 10/10/2013, 15:56:02 UTC
Thanks a lot on the HF vocabulary and semiconductor lessons. 

Who is doing your board assembly?  Or will you not tell us because you know you're going to be late?  HF may as well eat their shoes and ship the BJ's with two modules already in there.  Will save a good deal on shipping for HF and may save the company's image.
Post
Topic
Board Hardware
Re: HashFast announces specs for new ASIC: 400GH/s
by
calichomp
on 09/10/2013, 18:35:04 UTC
Are the boards and cases sourced already for the chips to be assembled into?

Yes.

To be more verbose...

Similar to what we did with Uniquify, we have been working extremely closely with both the board manufacturer / assembly house, and with the company that will be assembling the finished Baby Jets and Sierras. We are in daily, often hourly contact with them.
 
I'll request pix.


Not that we don't believe you about having already sourced the boards and cases.  Can you divulge who is providing these services for you?  Who is doing your board manufacturing?  Who is doing your board assembly?  Who is doing your system integration.

Seems to me like you won't hit October, as promised.

they can't divulge that stuff.  you should know better.  what good would it do giving it to some random internet guy who could actually be a competitor.

you're right in that delivery is going to be close.  but even KNC was/is late.

They can tell us that their fab is TSMC but can't tell us who is making/assembling their boards?  Give me a break; that is the easy part.  Also: I don't know better and I'm sure everyone who has a preorder would feel better if they knew that your partners who are following through to the end are as reputable as TSMC.
Post
Topic
Board Hardware
Re: HashFast announces specs for new ASIC: 400GH/s
by
calichomp
on 09/10/2013, 18:03:23 UTC
Are the boards and cases sourced already for the chips to be assembled into?

Yes.

To be more verbose...

Similar to what we did with Uniquify, we have been working extremely closely with both the board manufacturer / assembly house, and with the company that will be assembling the finished Baby Jets and Sierras. We are in daily, often hourly contact with them.
 
I'll request pix.


Not that we don't believe you about having already sourced the boards and cases.  Can you divulge who is providing these services for you?  Who is doing your board manufacturing?  Who is doing your board assembly?  Who is doing your system integration.

Seems to me like you won't hit October, as promised.
Post
Topic
Board Hardware
Re: KNC on fire !
by
calichomp
on 08/10/2013, 02:09:55 UTC
I'm trying to get a refund now.  These are barely on the edge of ROI for me.  It isn't worth burning the apartment building down for a few extra bucks.  Will let you all know if I have any luck.
Post
Topic
Board Hardware
Re: TerraHash to Provide a Hosted Bitcoin Mining Solution for $6/GHash in November
by
calichomp
on 05/09/2013, 18:02:31 UTC
I would like to reserve two blocks of whatever bullshit you're trying to sell.
Post
Topic
Board Hardware
Re: HashFast announces specs for new ASIC: 400GH/s
by
calichomp
on 31/08/2013, 21:08:34 UTC
HashFast's Golden Nonce GN ASIC successfully taped-out yesterday, Wednesday the 28th, and has been released for 28nm fabrication to a well-known, leading-edge foundry.  More details will follow in next week's joint press release.

-John

Congratulations John (and rest of HF team).  Big milestone.  I look forward to the joint press release. 
I assume this means you still anticipate meeting your delivery estimate?

Thanks D&T,

Yes, we are still looking good. Its exciting over here!

-John

Please share your schedule with us.  All of us are very skeptical that you will deliver systems in October.  Cutting glass, obtaining first silicon and packaging will take at least 2 months.  Not to mention system assembly and prototype test.  Even in tapeing out August 28th you're looking at LATE November easy or you're simply lying to everyone.  If you disagree please share your exact schedule with us.

-The Skeptical
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Topic
Board Hardware
Re: HashFast announces specs for new ASIC: 400GH/s
by
calichomp
on 07/08/2013, 15:08:58 UTC
Making everyone sign an NDA is pretty stupid.  I requested to go to the open house and was told: 'no' we're full.  Not a huge fan of these guys right now.  We know that they had an open house.  However, we have no clue what was discussed.  So, what was the point of it?
Post
Topic
Board Hardware
Re: HashFast announces specs for new ASIC: 400GH/s
by
calichomp
on 04/08/2013, 18:16:47 UTC
at least they should start to take preorders soon! can't wait to give my money away...
 
someone located in this area to give a visit?  Grin

HashFast Technologies LLC

97 South Second Street #175
San Jose, CA 95113

Wohoooo!  It's just a few blocks from where I live. So proud of my Silicon Valley. I'm on vacation but I'll probably contact them later on to pay them a visit.

I'll be on day one in line the day they start selling just like with an Apple store (except I'm going to be escorted by some dudes since it'll be like walking out with gold from a store).
Go SV! Go SV!! to lead the technology charge and leave behind in the war zone the sucker, douchey and geek-wanna-be redneck company from Kansas. (You know which company I'm specifically talking about! ;-)

Yippers.  That shoo is Uniquify's address Cheesy  BTW, how did you get out of noob jail so quick -- this is your second post EVAH!

For what it is worth... google says this address is a place called Nextspace -- a co-working office.  Seems weird to me that a company that can afford a 28nm chip without preorders can't find their own office.
Post
Topic
Board Digital goods
Re: Bitcointalk forums accounts for sale. Accounts from 2012 just .15btc
by
calichomp
on 01/08/2013, 05:57:19 UTC
Why people buying your accounts?

I don't understand why anyone would want this...
Post
Topic
Board Beginners & Help
Re: reverse engineering ASIC miners
by
calichomp
on 01/08/2013, 05:50:49 UTC
Do you mean breaking down the architecture of the chip or the board?  If the former, what do you expect to achieve?