Btctalk name: S M I L Y
Rank: Member
Current post count: 1396
BTC address(No BCH): 3EziAPAyNXx55kY9zES46oJyETW4zdT2Wi
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Looks pretty HashFasty to me

Well then, would you care to take a stab at why so many of these startup bitcoin ASIC companies cant get product out the door?    Any why they want to sell chips?

Who goes out and spends millions on NRE for a 28nm ASIC with the intention to screw people over by not shipping product?

Make no mistake, I am in no way condoning the ignorance and incompetence that many of these companies exhibit.  I have been screwed over by almost all on the list that I listed... which is how I have first hand knowledge of why each of them has had issues.!

 

As someone who has been in hardware development for many years, EVERY bitcoin ASIC vendor has mainly had issues with the Board design, and Thermals/Mechanicals.

Once the chip design is done, its real easy to call the Chip FAB up and ask for chips...

HashFast - Original board VS Yoli 70% more performance with just a board change
KNC -  Ran out of VR modules because they bought an off the shelf part.  Then had Capacitors catch fire probably due to not spec for enough ripple current.
BFL-  Yea... Everything.  missed their power budget by 5x 
Cointerra-  Very complex board with heavy components on the backside.  cant be build fast.   Their issues are probably signal integrity and power related which explains the way less than 2Th.
Avalon-  Dont even want to talk about their problems.   Im still pissed.

ALL of these companies Im sure have trays of chips sitting on shelves doing nothing.     Their issues are that they cant build boards fast enough, or they dont know how to properly design a power regulator, or they cant cool the chip they designed.


-Smily

a few questions for you Labcoin

• How many of the 20,000 chips in hand still remain to be deployed?
• On what date will all chips in hand be deployed?
• What are the approximate running costs, per board or per terahash, of outsourcing and hosting (electricity, etc.)?
• Are the current chips profitable right now at the current difficulty? If so, what is the current profit margin?
• What is the status of the next batch of chips? (the 130nm ones promised to use a thermally superior package)
• What is the status of the 65nm design? If it's still on hold, do you have anyone under contract to complete the design?
• Have you secured exclusive access to the bitcoin wallet for IPO funds yet from Fabrizio? (If so, what address?)
• When will you be in Shenzen next?
• The network difficulty has risen 40% in the last few days, and is expected to rise sharply again in less than 12 days. Can you achieve 1% of global hashrate before the next difficulty change, and can you maintain that rate in the future?
• There have been a number of well-funded competing ASIC designers now producing real hardware, and difficulty is expected to continue rising at record high levels for the foreseeable future. At what difficulty will the existing Labcoin chips cease to be profitable given the known power and hosting costs?

Credit to radiumsoup for the list of questions.

I requested my transfer within the hour of Ken's announcement on how to transfer.

I can also confirm successful transfer to Bitfunder!

Thanks KEN!

NO the top board is 100% AVALON or AVALON clone!!!!!!

YUP  thoes are AVALON!

ME thinks Labcoin_PR is a troll!

SERIOUSLY!   All you need to do is post REAL pictures of the hardware you have in hand!!!!    Show us your Lab Bench where you are doing bringup test!  Show us a chip (even a broken one) mounted to a functional PCB!!!!

You can make all of this go away with a few simple photos!   We dont care if they dont work!  We need to know you are actually attempting to build a real product!  

Or even better send some sample chips out for 3rd party verification!

This is awesome!  I for one will be switching out the chips on my Gen One Avalon with the 55nm chips if they can ROI!

@460Mhz  36Ghs per module.

~144GHs for a 4 module unit.   This consumes about 1700watt at the wall.

3 Modules should get you 108Ghs and you would need a 1200 watt supply at minimum.


Also the wire mod alone will not get you any where near 400mhz.  you need to hardware adjust your voltage up to at least 1.3 volts (im at 1.36v)  and you must do something about cooling!!!!!!

Not at 400 but at 460 you can expect to be exactly 2x current of stock speeds.

At stock voltage?  or overvolt?    at stock you will not be able to get anywhere near 400mhz

keep falling!  Im gonna double up at .0017 :-)

There are really only 2 areas where a switching VR can fail.  Heat and inductor saturation.     If the FET cant handle the current the friction of the electrons traveling through the junction turns to heat.  The heat will eventually kill the part.   If you keep things cool (im watercooling) you can go amazingly far past design tolerances.

I dont know what the inductor saturation point is.  I havent looked up the spec.  I can say that I can hold my finger directly on the inductor and it dosnt burn me.  Its not comfortable, probably about 45-50c temp.

As far as killing my Avalon goes... I dont care.  I need to get as much out of this thing in the next 30 days... after that it probably wont be profitable to run.

Pencil trick.... Reliable...   


I for one would not take a pencil to my $10,000+ device.

Im running with 31k piggyback and that gives me 1.336v under load at the bottom chip.

Be aware that for me at 460mhz I am 2x the wattage as a stock Avalon!   At bare MINIMUM you need a 1200watt powersupply for a 4 module unit!

I need to find out how to deal with 1600watt total at 460mhz!!!

Im in Texas.   1.3v should have no problem with 400.   Im only at 1.336 and getting 460mhz. 

As for cooling:  If you do good thermal paste on the backside and are in a cool environment you may get away with just air cooling.