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Showing 13 of 13 results by NorthChileanG
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Board Beginners & Help
Re: ASIC wars, devil in the distribution. Has Avalon killed all other startups?
by
NorthChileanG
on 07/06/2013, 23:11:05 UTC
 Well, this is interesting - BFL also offers not mounted chips now. Assuming BFL chip yeld is reasonably good, then it might get interesting. It all depends on real chip availability - we have not seen Avalon chips available en masse yet but considering appearance of 1...3Thash clients, there probably is significant number of ASICs available already. I would speculate for high volume chip buys before availability to general public orders and fast rising network hashrate at the moment might be direct result.

https://products.butterflylabs.com/65nm-asic-bitcoin-mining-chip.html
Post
Topic
Board Mining speculation
Re: Is it 1.2+ Thash or glitch?
by
NorthChileanG
on 26/05/2013, 21:16:20 UTC
Tho most interesting part - it goes away for a day, but growth continues. Almost linear growth, 3.5Thash reached.
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Topic
Board Mining speculation
Topic OP
Is it 1.2+ Thash or glitch? (reached 3.5 Thash now)
by
NorthChileanG
on 23/05/2013, 09:55:23 UTC
Post
Topic
Board CPU/GPU Bitcoin mining hardware
Re: Fire risk reduction/suppresion?
by
NorthChileanG
on 13/05/2013, 10:16:07 UTC
 You can get rack mountable fire suppressors, but they are not cheap. Easiest would be to use canister of CO2 with temperature sensitive release - either temperature to pressure converter acting valve or simply melting tube (not that good on long term).


Heat is an issue, I'm blowing (then venting) the majority of that, but I'm curious if anyone else has installed any kind of standalone fire suppression system. Clearly installing an alarm above the machines is easy, but with these machines running unattended for days (and on a few occasions a year, weeks), I would feel better if there was an easy way to set up a suppression system above the machines.

Post
Topic
Board Hardware
Re: Klondike - 16 chip ASIC Open Source Board - Preliminary
by
NorthChileanG
on 08/05/2013, 17:21:32 UTC
Few points that may or may not be relevant:

* Avalon 10x slices allow sandwiching between 2 radiators. PSU components are separated, reasonable design feature and this might be favorable layout considering overclocking and extending.

* There might be chain member number limit dictated by serial speed and driving capability, so it might be reason for 10 chip per chain.
Reasonable would be to calculate theorethical max datarate needed to be in the ballpark.
Post
Topic
Board CPU/GPU Bitcoin mining hardware
Re: When I add 2nd PSU it smeels like its catching on fire WTF!? BTC Tip for help!
by
NorthChileanG
on 07/05/2013, 19:49:38 UTC
Do not forget to connect PSU grounds and check earthing.
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Topic
Board Services
Re: [1 BTC for simple electronic circuit (PWM to tach signal with 555-timer IC)
by
NorthChileanG
on 05/05/2013, 21:02:37 UTC
It is probably easiest to take 8 pin PIC AVR or (insert your favorite MCU with internal oscillator here) nowdays... but:

For fun:
http://www.falstad.com/circuit/e-vco.html

Use suitable RC filter to smooth the input enough... Probably 555 is not that good - bandwidth change is not enough to cover whole RPM range. Still - 99% motherboards do not care about fan speed change range as long there is variable signal present.
Post
Topic
Board Altcoin Discussion
Re: Ripple Giveaway!
by
NorthChileanG
on 05/05/2013, 19:07:03 UTC
rKxEXdc4MEFcfV6ngFVZvV2vtsmp2bhJeo
Post
Topic
Board Beginners & Help
Re: ASIC wars, devil in the distribution. Has Avalon killed all other startups?
by
NorthChileanG
on 05/05/2013, 18:55:08 UTC
So, depending on Avalon order number sequentiality - do we have 1 PetaHash/s mark in the air Smiley?
Post
Topic
Board Beginners & Help
Re: Thin bitcoin wallet client with message sign possibility
by
NorthChileanG
on 05/05/2013, 18:21:24 UTC
Bump up to that question.
Post
Topic
Board Beginners & Help
Re: Welcome to Bitcoin Black Friday
by
NorthChileanG
on 03/05/2013, 17:10:12 UTC
So,

lets bet how how low it can go Smiley?
Post
Topic
Board Beginners & Help
Re: Meh.
by
NorthChileanG
on 02/05/2013, 14:19:54 UTC
Moo!  Wink
Post
Topic
Board Beginners & Help
Topic OP
ASIC wars, devil in the distribution. Has Avalon killed all other startups?
by
NorthChileanG
on 01/05/2013, 01:18:54 UTC
Hi,

 as I cannot yet post in more appropriate sections, let me start here.

 Recent relatively high volume rushed Avalon bare chip sales have left me wondering what is the real reason behind inventory dumping.
At first glance one might suggest board manufacturing capacity limitations, chip manufacturing limitations (large minimum amount of chips
in one batch), the wish to calm 51% attack fears or other fairly benign reasons. However, at the current moment Avalon has almost
monopolistic hold of the market - why should one rush to inventory dumping in this kind of situation?

 I can see but only one actual reason - to further leverage monopoly, they chose cheapest way to kill arising competition - flood market with
promise of reasonably cheap ASIC rigs. There is no better way to do it than dump already known working chip design to multiple vendors. Anyone
interested notices either chips now or in later phase, the readymade boards just because the publicity. The use of distributed parallel manufacturing of rigs still containing Avalon chips is brilliant in at least three ways:

*Avalon can have reasonably high price per chip now, with the water written promise of high ROI of rigs made from the chips later. Buyer's fallacy is to expect ROI on current projections of difficulty rise that are !mostly linear!.

*Avalon pretty much stops new orders made for competitive products that cannot hope to compete with numerous board manufacturers as a single entity. Assume BFL preorder sell or cancels appearing en masse. I would suggest, that selling the first generation Avalon chips this way is actually the most significant event since the announcement of ASIC chips.

*Avalon has a extremely fast way to raise capital for second generation shrinked die faster and bigger chips. One might be surprised how soon the second generation can arrive.

 Any thoughts are welcome.