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Bitmain
March 12th, 2015
Topic: ANTMINER S5: 1155GH(+OverClock Potential), In Stock $0.319/GH & 0.51W/GH - page 152. (Read 451266 times)
March 12, 2015, 04:56:26 AM
March 12, 2015, 04:52:16 AM
It's nice to see that the price is 369 USD now. Good job, Bitmain! Keep lowering! 
LOL 
March 12, 2015, 04:51:19 AM
It's nice to see that the price is 369 USD now. Good job, Bitmain! Keep lowering!
more ddos + new manufacturers + people leaving antpool = lower price ?
March 12, 2015, 04:25:37 AM
It's nice to see that the price is 369 USD now. Good job, Bitmain! Keep lowering!
March 12, 2015, 03:39:01 AM
Looks like Bitman is getting some competition. No solid details yet, but here's the thread. I'll give them a try. https://bitcointalksearch.org/topic/ann-sfardssf100-the-first-28nm-dual-mode-miner-is-accepting-pre-order-now-985400
Yeah well lets hope this motivates Bitmain to be a little more competitive with their pricing!
March 12, 2015, 02:24:45 AM
Anyone know what model the stock fan is on the S5? And if they are any other 35mm fans out there that can keep the S5 cool at ambient temps?
Also don't waste your money on getting the Corsair SP120 fans. While they are quiter than the Noctua's the temps will rise over 60c pretty much %100 of the time.
Also don't waste your money on getting the Corsair SP120 fans. While they are quiter than the Noctua's the temps will rise over 60c pretty much %100 of the time.
Which is absolutely fine, that's the same as an S5 in 35-40C ambients. SP120s are the quietest you can get an S5 - within reasonable bounds.
I have two S5's with the SP120s, just added a stock machine. The noise is atrocious, sounds like a hairdryer on low. Cannot wait to get another SP120 here. In my little windtunnel at 350M making 35 dBa the S5 machines are running low to low-mid 60s.
Now that I have cold air on the S5 with blower motor and 1500watts going to it... should spool it up and see what it can do!
March 12, 2015, 01:32:34 AM
Anyone know what model the stock fan is on the S5? And if they are any other 35mm fans out there that can keep the S5 cool at ambient temps?
Also don't waste your money on getting the Corsair SP120 fans. While they are quiter than the Noctua's the temps will rise over 60c pretty much %100 of the time.
Also don't waste your money on getting the Corsair SP120 fans. While they are quiter than the Noctua's the temps will rise over 60c pretty much %100 of the time.
Which is absolutely fine, that's the same as an S5 in 35-40C ambients. SP120s are the quietest you can get an S5 - within reasonable bounds.
March 12, 2015, 01:30:25 AM
only reason i see for no S1 to S5 heat sinks are little diff on the S5 over the S1 .
Quote
25 Jan: Please pay 1.4666btc to below address for 1 set of S5 kit including 1 control board + 2 hash board without heatsink + 2 cables.
I believe that was for those who wanted to make watercooled S5s (and so don't need heatsinks).
March 12, 2015, 01:23:09 AM
Looks like Bitman is getting some competition. No solid details yet, but here's the thread. I'll give them a try. https://bitcointalksearch.org/topic/ann-sfardssf100-the-first-28nm-dual-mode-miner-is-accepting-pre-order-now-985400
If they just taped out,it's gonna be a LONG time before you'll have anything in hand
6 months or more I'm sure
March 12, 2015, 12:27:10 AM
Looks like Bitman is getting some competition. No solid details yet, but here's the thread. I'll give them a try. https://bitcointalksearch.org/topic/ann-sfardssf100-the-first-28nm-dual-mode-miner-is-accepting-pre-order-now-985400
March 11, 2015, 10:30:08 PM
Anyone know what model the stock fan is on the S5? And if they are any other 35mm fans out there that can keep the S5 cool at ambient temps?
How cold do you want it to keep? My S5 working completely OK at 65-69 C. With stock fan replaced with two Gembirds.
p.s. S5 is overclocked to freq. 400.
March 11, 2015, 08:58:50 PM
They may be dicking us with raising prices, but at least they deliver good gear. Take a look at other Chinese ASIC companies these days. Has anyone gotten better prices for the next batch via a group buy? I know lee group had one up, but it seems to be on hold.
March 11, 2015, 08:52:50 PM
Or a 2014 thread.
March 11, 2015, 08:49:26 PM
Why does the thread title say 0.25/GH? It seems more like $0.50/GH.
not unusual for BMT
March 11, 2015, 08:42:16 PM
Why does the thread title say 0.25/GH? It seems more like $0.50/GH.
March 11, 2015, 08:00:17 PM
Anyone know what model the stock fan is on the S5? And if they are any other 35mm fans out there that can keep the S5 cool at ambient temps?
Also don't waste your money on getting the Corsair SP120 fans. While they are quiter than the Noctua's the temps will rise over 60c pretty much %100 of the time.
Also don't waste your money on getting the Corsair SP120 fans. While they are quiter than the Noctua's the temps will rise over 60c pretty much %100 of the time.
March 11, 2015, 04:44:48 PM
This doesn't make a whole lot of sense... there's a number of assumptions in here on the relation between bitcoin price and projected difficulty rise. I'd ask for you to provide the basis for these assumptions, but this has gotten far astray from the point of my post (to the extent that it was all responsive to begin with).
My bad. Your response seemed too academic (to me at least) and warranted a challenge, but clearly it's gone too far. There are assumptions of course (far removed from the 3 degrees of intel reliability) which are pretty obvious and linear (not the best way to do it, but easy to understand); If you are unable to tell, then this has gone its length.
March 11, 2015, 04:27:24 PM
I don't know how I'd react to market intelligence or how much weight I would give it if I were Bitmain. That's their judgment call, not mine. But Bitmain decided to disclose, at least in part, some aspects of their pricing methodology. And it seems that they put quite a bit of weight on market intelligence. Given its unreliability, I simply questioned whether they are putting too much weight. Sure, it's their money invested, not mine, but that doesn't mean that their decision-making process is infallible. The issue is weight, not reliability (though they are related), I never suggested (nor would I) that I can properly distinguish between reliable and unreliable market intelligence, certainly not in this case, given the limited amount of vague* information we received about that intelligence.
*I don't mean vague as a complaint - I'm sure it was vague for a reason.
*I don't mean vague as a complaint - I'm sure it was vague for a reason.
That response is loaded with indecision, and that is not mentioning your three degrees of market intelligence (weight, reliability, unreliability). But now you have an inkling of what dilemma they face on a daily basis, I am just surprised you are adamant they got it wrong (knowing as you do that hindsight is a wonderful thing).
I'm surprised I'm adamant that they got it wrong as well, that doesn't sound like the message I was trying to convey.
Hmmm! Just the one thing though ....
1. When batch 5 & 6 were launched, they were priced at $320 (BTC 1.14 at the time aka $280.7 per BTC1).
2. After "confirming" their intel, bitmain ticked the price to $411 ( i.e BTC1.464 at the above rate)
Bitmain justified the price rise based (as far as they have said) purely on that intel and the effect / implications it had on the previously projected bitcoin network difficulty rise in the short to medium term. We have to assume here that the market as a whole did not have that intel (and that was borne out with mini rally in BTC value after the initial price rise and bitcoin releasing that intel).
Here's the punchline. If the market as a whole was working perfectly, and the (previously) projected network difficulty rise on the back of the 0.03W/Gh (or something like that) was factored into the value of BTC, then the current rate to the $ should be ~$365 and not the current ~$295.
I suppose I can reserve judgement on whether it was the right level of price rise till the first bactch of the units ship on the 30th coupled with if the value of BTC nears / equates to $365, but when rigs start shipping it usually results (rightfully) in a dip in BTC value! Jury is OUT!
(I'll not go to the current $419 price as the above anology will suffice for my argument)
This doesn't make a whole lot of sense... there's a number of assumptions in here on the relation between bitcoin price and projected difficulty rise. I'd ask for you to provide the basis for these assumptions, but this has gotten far astray from the point of my post (to the extent that it was all responsive to begin with).
March 11, 2015, 04:10:19 PM
Looks like some people got it in their mind to get revenge on Bitmain.
I got this email:
Dear Bitmain Customer,
This morning we received a concerning email from a group of hackers threatening Bitmain and our services with a DDoS attack and demanding a ransom payment to prevent the attack. Bitmain is committed to providing the best service possible to our users, and will not invite future attacks of this sort by giving in to the demands of hackers.
The hackers have demonstrated that they do possess the capability to execute a DDoS and that this is not an entirely empty threat, although we do not know the full extent of their capabilities. During the next few days, Bitmaintech.com, AntPool, AntPool.com, and&nbs p;Hashnest.com may experience intermittent outages. Our team is working hard to ensure that the effects of any possible attack will be as minimal as possible.
For those customers mining on AntPool, please make sure that you have configured your backup pools properly in the event that you are unable to access AntPool.
For HashNest users, mining payouts will continue as usual and there is no need to worry about lost revenue.
For sales, if you are unable to access our main website, you may contact us directly at [email protected].
Thank you for bearing with us during this time.
All the best,
Bitmain
I got this email:
Dear Bitmain Customer,
This morning we received a concerning email from a group of hackers threatening Bitmain and our services with a DDoS attack and demanding a ransom payment to prevent the attack. Bitmain is committed to providing the best service possible to our users, and will not invite future attacks of this sort by giving in to the demands of hackers.
The hackers have demonstrated that they do possess the capability to execute a DDoS and that this is not an entirely empty threat, although we do not know the full extent of their capabilities. During the next few days, Bitmaintech.com, AntPool, AntPool.com, and&nbs p;Hashnest.com may experience intermittent outages. Our team is working hard to ensure that the effects of any possible attack will be as minimal as possible.
For those customers mining on AntPool, please make sure that you have configured your backup pools properly in the event that you are unable to access AntPool.
For HashNest users, mining payouts will continue as usual and there is no need to worry about lost revenue.
For sales, if you are unable to access our main website, you may contact us directly at [email protected].
Thank you for bearing with us during this time.
All the best,
Bitmain
March 11, 2015, 04:03:52 PM
I don't know how I'd react to market intelligence or how much weight I would give it if I were Bitmain. That's their judgment call, not mine. But Bitmain decided to disclose, at least in part, some aspects of their pricing methodology. And it seems that they put quite a bit of weight on market intelligence. Given its unreliability, I simply questioned whether they are putting too much weight. Sure, it's their money invested, not mine, but that doesn't mean that their decision-making process is infallible. The issue is weight, not reliability (though they are related), I never suggested (nor would I) that I can properly distinguish between reliable and unreliable market intelligence, certainly not in this case, given the limited amount of vague* information we received about that intelligence.
*I don't mean vague as a complaint - I'm sure it was vague for a reason.
*I don't mean vague as a complaint - I'm sure it was vague for a reason.
That response is loaded with indecision, and that is not mentioning your three degrees of market intelligence (weight, reliability, unreliability). But now you have an inkling of what dilemma they face on a daily basis, I am just surprised you are adamant they got it wrong (knowing as you do that hindsight is a wonderful thing).
I'm surprised I'm adamant that they got it wrong as well, that doesn't sound like the message I was trying to convey.
Hmmm! Just the one thing though ....
1. When batch 5 & 6 were launched, they were priced at $320 (BTC 1.14 at the time aka $280.7 per BTC1).
2. After "confirming" their intel, bitmain ticked the price to $411 ( i.e BTC1.464 at the above rate)
Bitmain justified the price rise based (as far as they have said) purely on that intel and the effect / implications it had on the previously projected bitcoin network difficulty rise in the short to medium term. We have to assume here that the market as a whole did not have that intel (and that was borne out with mini rally in BTC value after the initial price rise and bitcoin releasing that intel).
Here's the punchline. If the market as a whole was working perfectly, and the (previously) projected network difficulty rise on the back of the 0.03W/Gh (or something like that) was factored into the value of BTC, then the current rate to the $ should be ~$365 and not the current ~$295.
I suppose I can reserve judgement on whether it was the right level of price rise till the first bactch of the units ship on the 30th coupled with if the value of BTC nears / equates to $365, but when rigs start shipping it usually results (rightfully) in a dip in BTC value! Jury is OUT!
(I'll not go to the current $419 price as the above anology will suffice for my argument)
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