Bitcoin Forum
May 28, 2024, 11:55:14 AM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: « 1 2 [3]
41  Bitcoin / Hardware / Re: What's the quietest, most power miner if you don't care about power efficiency on: January 04, 2015, 07:17:11 PM
antminer s-3 with this fan

http://www.amazon.com/gp/product/B00A460TK6/ref=oh_aui_detailpage_o02_s00?ie=UTF8&psc=1


will result in near silence .  One fan needs a slight mod to the edge of it. 

I have two from my s-5 sitting in a box.

 they work okay on the s-5 due to the open  case design ,but  they work great on the s-3.







Would they work with the S1?  The S1s I bought don't have stock fans with PWM they are hard wired in and always run at full clip.  I wanted to change the fans out but no point in investing $ on an S1.  I can put them in my room with an open window (good old Canadian winters) and keep the internal temp at 25C but can't sleep with the fan running 100%.   It wouldn't be a bad investment if I'm going to use them on something else later

I'd be willing to buy them off you if they have PWM.
42  Bitcoin / Hardware / Re: What's the quietest, most power miner if you don't care about power efficiency on: January 04, 2015, 07:03:47 PM
I think your most powerful miner will be the most efficient ones as well, Moore's Law and all that.

Well maybe not necessarily the most powerful.  Best bang for buck so to speak while trying to make sure I don't fall off the end of the curve in 3 months.  

I bought 2 ant S1 with a corsair rm850 to get started.  I hope/plan to ROI on the S1s (not power supply) after 60-90 days (assuming 15% average diff increase) and now that I've got my feet wet and have learnt so much I'm trying to line up what my next move would be.

Please don't say, " just buy coins. Don't mine."  I'm doing this for fun and only hope to have a hobby that is break-even.

At this Diff on my current pool I'm averaging .004 BTC/day, so 0.0000111/GH.  My thoughts are that 1) I can stay a few generations behind and as long as I'm purchasing at $0.25/GH (or 0.000877 BTC/GH) My ROI would be not too far out each time I upgrade I keep a low risk.

Example

buy Ant S3 on ebay for $110 USD and just swap out one of my S1s, then do that again a month or so later.  The thing I hear about the S3 is that it's loud.

Or 2) Get a Spondoolie SP20 for $425 (again $0.25/GH) and invest in a second rm 850 to power it up.  Again I hear it's loud but now I'll have some hashing power behind me and I won't be too worried about falling off the end of the curve for at least a little bit.

or 3) Ant C1


Is 1 Sp20 louder than 2 S1/S3s?
43  Bitcoin / Hardware / What's the quietest, most power miner if you don't care about power efficiency on: January 04, 2015, 06:39:54 PM
Like the title says.  I don't pay for hydro so I'm not worried about my consumption at all.  I want to mine out of my apartment so noise and hashrate are my only 2 concerns.  What would be the best I could buy that is quiet and under $1k
44  Bitcoin / Hardware / Re: [Guide] Dogie's Comprehensive Bitmain AntMiner S1 Setup [HD] on: January 02, 2015, 03:52:52 PM
What is the fan noise when compared to a AM Cube. I know Dogie has had both. I have a couple on the way. I was thinking of replacing the stock fans with these.
http://www.quietpc.com/cl-swif2-12p

They are rated at 75cpm, but I plan on using two. These fans are very quiet and I have used them to tone down a Norco server.  They will be going in a spare bedroom, that is used occasionally . So I want to keed the noise to a minimum.

The cube is consistent and is like a quiet desktop pc. You could have 50 in your room and not really care. The Antminers are the same, IF you can keep it on its low rpm setting. As I have a single blade the aerodynamics aren't as good and so I use 2x120mm fans blowing directly on the heatsink to keep it cool and quiet.

Neither my antminer or cube is audible over my Avalon running at min rpm though.

I bought a couple S1s used and idk if they've replaced the fans but they only run on max RPM.  What connectors are they supposed to be plugged into to allow for a variable speed?

I have them in a cold room and the reported temp is 25C

There is only one connector type on the S1 boards, so it sounds like they replaced the fans.

I'm pretty sure they did.  there's only 2 (a black and red) wires coming out of the fan which are directly connected to the pos/neg hookups that you had to wire the PSU to origionally.

Unless you guys can suggest an inexpensive replacements fan I'll just deal with the noise.  Not going to spend $50 replacing 2 fans that aren't broken.

I'd leave it unless it really bothers you, the fans will cost as much as the miner.

Yeah,  they are quite loud always running full clip but I've bought them to test the waters of mining and plan on upgrading if I can ROI on the cost of buying the 2 S1s used.

I like the C1s but have read about some issues with the pump
45  Bitcoin / Hardware / Re: Bankruptcy Mining Asics Technologies on: January 01, 2015, 03:47:24 PM
Bankruptcy Mining Asics Technologies
No more Alcheminers MAT miners any more, well.. (Almost nobody got one any way)

News link: http://www.bitcoinupdate.nl/home/the-dutch-mining-asics-technologies-bv-bankrupt
Dutch news link: http://www.bitcoinupdate.nl/home/mining-asics-technologies-failliet





how can something have unlimited mining power?
46  Economy / Service Discussion / Re: want to try cloudmining, where to start on: January 01, 2015, 03:39:49 PM
OK, so assuming buying a machine wont happen and cloudmining is a bad option what would you recommend I do with the bitcoins I have?

Any opportunities to invest them somewhere to earn more or should I just convert them to cash and move on?

A lot of people would probably keep them at BTC and trade them like a stock.  Someone mentioned $450 is a good time to sell and <$300 is a good time to buy
47  Economy / Service Discussion / Re: want to try cloudmining, where to start on: January 01, 2015, 01:04:16 AM
Think about this. 

Lets say you and me open a restaurant.

we invest $60,000 total and expect to earn $120,00 after 1 year.

The day before we open an old Texas oil man comes to us and offers us $80,000 to lease the restaurant for 1 year paid upfront, in full, and at the end of 12 months we get our restaurant back.

You you accept his deal?

Technically we're losing $40,000
48  Economy / Service Discussion / Re: want to try cloudmining, where to start on: January 01, 2015, 12:56:33 AM
I would advise against any kind of cloudmining or other hosted mining, the "contract" or terms can change at any time, the place could go up in smoke, the hoster could run with all the funds, etcetc, there are So Many Things that can go wrong, and the return is Very low.

Think about it this way, if the seller of the hosted hashrate, is selling hashrate, that means that you are likely paying More than it's actually worth, otherwise, why wouldn't he just keep the hashrate all to himself?
Cloudhashers make extra profit off their hashrate by charging more than it's worth, because people without a decent amount of starting capital can't afford an Actual peice of mining hardware.

Just my input

I think theoretically large mining operations could be hedging their bets against long-term changes in the market

People have to invest some serious capital to get a major mining operation up and running.  Maybe they are profitable now but BTC is very volatile.

what new equipment will be coming out in 3 months?

what will they be able to earn in 6 months?

how high can the difficulty go in 6 months?

what will the value of BTC be in 6 months?

what unforeseen events could happen and would it cripple them?

why not least out some of their hashing power at say even 80% of what they expect to earn in 12 months?  It'd be a quick recoup of some of their cost.

As the old saying goes, "a bird in the hand is worth two in the bush."
49  Economy / Service Discussion / Re: want to try cloudmining, where to start on: December 31, 2014, 07:50:31 PM
Thanks for the replies guys Smiley

I am not a tech guy so I'm afraid to buy hardware I wont know how to use properly.

neither am I and my 2 antminers (S1) weren't really all that hard.  So many youtube videos and the forums were invaluable. 
50  Economy / Service Discussion / Re: want to try cloudmining, where to start on: December 31, 2014, 04:47:39 PM
Much better off not buying into any of them. If you really want to mine snag a cheap miner and run it at home for fun. Look at Bitmain and Spondoolies...both have affordable miners!


Agreed.  Antminer S1s are less thank $50 easy on ebay.  ANT S3s are dropping fast and I've seen them as low as $150.
51  Bitcoin / Mining speculation / Re: Next Halving in 2016 Mining consequences ? on: December 31, 2014, 04:39:44 PM
I expect the "reward halving" to have a significant, negative impact on large mining operations. Another way to phrase this is "income halving" (in terms of bitcoins). Virtually everything that goes into a mining operation is priced in fiat (USD for me). That means electricity, hardware, staff salaries, cooling and so forth. Unless bitcoin doubles in value, a large operation will likely lose half it's "income", and have zero reduction in it's cost of operation. Show that to any large industrial operation (e.g. auto manufacturer), and they will all say it's time to do something drastic (e.g. close plants, lay off folks, etc).

I don't see how a large bitcoin mining operation can avoid this, unless they start to "wind down" in some way prior to "reward halving".

it would be beautiful to see the global harshrate plummet and difficulty along with it.

Or price to rise.

When you have a lot of GHS it is always great to see the difficulty going down Grin

no no, price needs to drop.  If the price rises more big investors will see it as profitable to set up large mining operations with high end equipment that will just push the at-home mining further out of the picture.

Now if the price dropped to $150 today we'd see a few PHs worth of machines shut down tomorrow.  Then the difficulty would drop and someone with 2 antminer S1s in their closet will finally have a reason to turn them back on
52  Bitcoin / Hardware / Re: [Guide] Dogie's Comprehensive Bitmain AntMiner S1 Setup [HD] on: December 31, 2014, 04:32:42 PM
What is the fan noise when compared to a AM Cube. I know Dogie has had both. I have a couple on the way. I was thinking of replacing the stock fans with these.
http://www.quietpc.com/cl-swif2-12p

They are rated at 75cpm, but I plan on using two. These fans are very quiet and I have used them to tone down a Norco server.  They will be going in a spare bedroom, that is used occasionally . So I want to keed the noise to a minimum.

The cube is consistent and is like a quiet desktop pc. You could have 50 in your room and not really care. The Antminers are the same, IF you can keep it on its low rpm setting. As I have a single blade the aerodynamics aren't as good and so I use 2x120mm fans blowing directly on the heatsink to keep it cool and quiet.

Neither my antminer or cube is audible over my Avalon running at min rpm though.

I bought a couple S1s used and idk if they've replaced the fans but they only run on max RPM.  What connectors are they supposed to be plugged into to allow for a variable speed?

I have them in a cold room and the reported temp is 25C

There is only one connector type on the S1 boards, so it sounds like they replaced the fans.

I'm pretty sure they did.  there's only 2 (a black and red) wires coming out of the fan which are directly connected to the pos/neg hookups that you had to wire the PSU to origionally.

Unless you guys can suggest an inexpensive replacements fan I'll just deal with the noise.  Not going to spend $50 replacing 2 fans that aren't broken.
53  Bitcoin / Mining speculation / Re: Next Halving in 2016 Mining consequences ? on: December 31, 2014, 04:47:02 AM
I expect the "reward halving" to have a significant, negative impact on large mining operations. Another way to phrase this is "income halving" (in terms of bitcoins). Virtually everything that goes into a mining operation is priced in fiat (USD for me). That means electricity, hardware, staff salaries, cooling and so forth. Unless bitcoin doubles in value, a large operation will likely lose half it's "income", and have zero reduction in it's cost of operation. Show that to any large industrial operation (e.g. auto manufacturer), and they will all say it's time to do something drastic (e.g. close plants, lay off folks, etc).

I don't see how a large bitcoin mining operation can avoid this, unless they start to "wind down" in some way prior to "reward halving".

it would be beautiful to see the global harshrate plummet and difficulty along with it.
54  Bitcoin / Mining speculation / Re: Difficulty skyrocketed ?? on: December 31, 2014, 04:29:07 AM
I think that the best thing that could happen for home miners is that if bitcoin prices were to go down.  Right now it's already hard to turn a profit and very risky for intvestors to put up huge capital to start up a mining warehouse.

If prices were to drop to say $150-200 I'd be we'd see a very quick drop in overall hash rate with and any plans to open up new large-scale mining operations would come to a halt.

55  Bitcoin / Hardware / Re: [Guide] Dogie's Comprehensive Bitmain AntMiner S1 Setup [HD] on: December 30, 2014, 05:04:02 PM
BTW thank you very much for all the info in this thread.  Made troubleshooting so much simpler.
56  Bitcoin / Hardware / Re: [Guide] Dogie's Comprehensive Bitmain AntMiner S1 Setup on: December 30, 2014, 03:47:05 PM
What is the fan noise when compared to a AM Cube. I know Dogie has had both. I have a couple on the way. I was thinking of replacing the stock fans with these.
http://www.quietpc.com/cl-swif2-12p

They are rated at 75cpm, but I plan on using two. These fans are very quiet and I have used them to tone down a Norco server.  They will be going in a spare bedroom, that is used occasionally . So I want to keed the noise to a minimum.

The cube is consistent and is like a quiet desktop pc. You could have 50 in your room and not really care. The Antminers are the same, IF you can keep it on its low rpm setting. As I have a single blade the aerodynamics aren't as good and so I use 2x120mm fans blowing directly on the heatsink to keep it cool and quiet.

Neither my antminer or cube is audible over my Avalon running at min rpm though.

I bought a couple S1s used and idk if they've replaced the fans but they only run on max RPM.  What connectors are they supposed to be plugged into to allow for a variable speed?

I have them in a cold room and the reported temp is 25C
Pages: « 1 2 [3]
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!