ANTMINER S2 Discussion and Support Thread - page 210.

bilabonic

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Quote from: dogie on March 16, 2014, 10:40:47 AM

Guys calm down about the PSU. I've ordered an S2 and will do a setup guide and review - if it burns my flat down then I'll let you know Wink

In all seriousness, I'll obviously check power consumption and PSU spec'ing.

How did you manage with customs ? I know Juan from 112 does not ship direct UK.

bobsag3

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I can at least confirm 100% that the S2 proto and retail units will have ATX supplies, unless they have changed that in the last week.

freebit13

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Quote from: jelin1984 on March 17, 2014, 10:03:46 AM

Hahah if put that sorry will be big mistake

Must sent as repair PC unit with value 100 dollars only

Write them and email FFS!

MrTeal

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jelin1984

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happy xmas

Biffa

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Quote from: jelin1984 on March 17, 2014, 09:52:38 AM

How will be the customs value 2500 usd? Huh

?.

You already know the answer Roll Eyes

jelin1984

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How will be the customs value 2500 usd? Huh

?.

klondike_bar

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Quote from: googlemaster1 on March 16, 2014, 10:48:26 PM

Honestly, I bought it hoping when they say "Over 1000 gh/s" and "Before April 1" meant it was going to be 1.3 TH/S and shipped out next week.... but hey! hahah.

Im near the front of the

I feel like there could be some solid overclocking potential. If all the chips are simply underclocked, there may be a way to add a 600W PSU and bump the system up to 1200-1300GH

The S1 overclocking was limited by the chip design (somewhat by voltage too, but mostly design). The S2 is limited by the included power components and a HUGE stock underclocking.

freebit13

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Quote from: visdude on March 16, 2014, 05:06:19 PM

Quote from: klondike_bar on March 16, 2014, 11:09:54 AM

Quote from: dogie on March 16, 2014, 10:40:47 AM

Guys calm down about the PSU. I've ordered an S2 and will do a setup guide and review - if it burns my flat down then I'll let you know Wink

In all seriousness, I'll obviously check pwoer consumption and PSU spec'ing.

+1. Stop getting your panties in a knot over vague technical specifications. Bitmain has a prototype right now (that i assume works just fine) so it seems VERY unlikely they would be stupid enough to skimp on the PSU rather then be smart and install a power supply that has some headroom. They are not tech-illiterate, and the S1 proved that handily.

I imagine that Bitmain has arranged some sort of deal with enermax that they will buy PSUs in bulk, within china, and get very good cost, high quality models. Even with the extra shipping weight it probably works out cheaper then letting customers buy one on delivery - and might be partially influenced by the forum threads full of people complaining about their units malfunctioning [because they are trying to use <500W power supplies]

I use server supplies for a lot of my gear, which gives me 1000W for about $30 + an hour of my time (getting the supply, testing it, soldering cables, testing it again, praying its not one with a screaming 2000RPM fan, etc), but I have no issues with a supply being included if the quality and price are right.

Well, it's an imagination on your part as you stated...and that's fine. But specs are there for a reason. It's the only thing we can go by. I don't care if somebody has tested a 1000W PSU with the S2 and successfully run it 24/7. A 1000W PSU is just that -- a 1000W PSU. Nothing more, nothing less. If it were capable of producing higher DC output, then it would be rated more than 1000W and vice versa. A device that draws around a sustained 900WDC from it (based on 90% PSU efficiency and Bitmain's spec of 1000W at the wall which is most likely underrated just like with the S1s) is too close for comfort for me.

You see, it's a matter of choice which you can't do anything about just like I can't do anything about your choices. Like I stated earlier, "knock yourself out" if you're comfortable with the stock 1000W S2 PSU. I couldn't care less. I just prefer to have at least a 1200W PSU for it for good reasons. That's all.

FYI: your original post was also and assumption... that Bitmain will use an ATX power supply in their unit... which I highly doubt... Enermax also produces server power supplies. Everyone here is making assumptions based on what information has been supplied and personally my assumption is that Bitmain made a mistake when inputting the info in the post, because they know the power calculations as well as anyone else on here, I'm pretty sure of that.

Also, believing that Bitmain will provide a machine to the correct spec that won't overload the psu is not bordering on fanaticism, it's just a simple observation based on my past experience. Fanaticism is usually based on irrational beliefs and I don't think I was being irrational.

All we can do now is wait for a reply from Bitmain, but I've placed an order in batch 2 anyway

Syke

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Quote from: klondike_bar on March 16, 2014, 10:11:50 PM

most of my profitability calculations involve assuming a difficulty that slowly settles from 16-20%/jump to 10%/jump over the next 6 months. I think its entirely fair, and maybe even fairly conservative.

Sounds about right. Energy costs are becoming significant. That's going to slow down future growth. That is until the next time the exchange rate skyrockets again.

googlemaster1

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Honestly, I bought it hoping when they say "Over 1000 gh/s" and "Before April 1" meant it was going to be 1.3 TH/S and shipped out next week.... but hey! hahah.

klondike_bar

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Quote from: kendog77 on March 16, 2014, 07:57:20 PM

Quote from: dropt on March 16, 2014, 06:22:01 PM

Quote from: kendog77 on March 16, 2014, 01:04:57 PM

Check out past difficulty increases on this site. We continue to see 10-20% difficulty increases every 11-12 days. The latest difficulty increase of only 11% is the anomaly if you look at past increases.

http://bitcoinwisdom.com/bitcoin/difficulty

So are you saying that if this was November of 2013 one could reasonably assume that the hashrate will double for eternity?

We're nearing the end of the road for large percentage increases if we're not already there.

Agreed, I was simply stating that it is a mistake to look at the last five difficulty increases of 23%, 19%, 19%, 22%, and 11% and assume that we've leveled out and 10% difficulty increases will now be the norm. It looks like the next difficulty increase will be ~15%.

most of my profitability calculations involve assuming a difficulty that slowly settles from 16-20%/jump to 10%/jump over the next 6 months. I think its entirely fair, and maybe even fairly conservative.

precrime3

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Its too far till any accurate predictions can be made, 2 days before retarget is usually when you can start IMO.

kendog77

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Quote from: dropt on March 16, 2014, 06:22:01 PM

Quote from: kendog77 on March 16, 2014, 01:04:57 PM

Check out past difficulty increases on this site. We continue to see 10-20% difficulty increases every 11-12 days. The latest difficulty increase of only 11% is the anomaly if you look at past increases.

http://bitcoinwisdom.com/bitcoin/difficulty

So are you saying that if this was November of 2013 one could reasonably assume that the hashrate will double for eternity?

We're nearing the end of the road for large percentage increases if we're not already there.

Agreed, I was simply stating that it is a mistake to look at the last five difficulty increases of 23%, 19%, 19%, 22%, and 11% and assume that we've leveled out and 10% difficulty increases will now be the norm. It looks like the next difficulty increase will be ~15%.

precrime3

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Quote from: dropt on March 16, 2014, 06:22:01 PM

Quote from: kendog77 on March 16, 2014, 01:04:57 PM

Check out past difficulty increases on this site. We continue to see 10-20% difficulty increases every 11-12 days. The latest difficulty increase of only 11% is the anomaly if you look at past increases.

http://bitcoinwisdom.com/bitcoin/difficulty

So are you saying that if this was November of 2013 one could reasonably assume that the hashrate will double for eternity?

We're nearing the end of the road for large percentage increases if we're not already there.

Lets not be quite sure. Im hoping it is, but since all the preorders haven't shipped "calm before the storm" seems to be more appropriate.

dropt

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Quote from: kendog77 on March 16, 2014, 01:04:57 PM

Check out past difficulty increases on this site. We continue to see 10-20% difficulty increases every 11-12 days. The latest difficulty increase of only 11% is the anomaly if you look at past increases.

http://bitcoinwisdom.com/bitcoin/difficulty

So are you saying that if this was November of 2013 one could reasonably assume that the hashrate will double for eternity?

We're nearing the end of the road for large percentage increases if we're not already there.

visdude

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Quote from: klondike_bar on March 16, 2014, 11:09:54 AM

Quote from: dogie on March 16, 2014, 10:40:47 AM

Guys calm down about the PSU. I've ordered an S2 and will do a setup guide and review - if it burns my flat down then I'll let you know Wink

In all seriousness, I'll obviously check pwoer consumption and PSU spec'ing.

+1. Stop getting your panties in a knot over vague technical specifications. Bitmain has a prototype right now (that i assume works just fine) so it seems VERY unlikely they would be stupid enough to skimp on the PSU rather then be smart and install a power supply that has some headroom. They are not tech-illiterate, and the S1 proved that handily.

I imagine that Bitmain has arranged some sort of deal with enermax that they will buy PSUs in bulk, within china, and get very good cost, high quality models. Even with the extra shipping weight it probably works out cheaper then letting customers buy one on delivery - and might be partially influenced by the forum threads full of people complaining about their units malfunctioning [because they are trying to use <500W power supplies]

I use server supplies for a lot of my gear, which gives me 1000W for about $30 + an hour of my time (getting the supply, testing it, soldering cables, testing it again, praying its not one with a screaming 2000RPM fan, etc), but I have no issues with a supply being included if the quality and price are right.

Well, it's an imagination on your part as you stated...and that's fine. But specs are there for a reason. It's the only thing we can go by. I don't care if somebody has tested a 1000W PSU with the S2 and successfully run it 24/7. A 1000W PSU is just that -- a 1000W PSU. Nothing more, nothing less. If it were capable of producing higher DC output, then it would be rated more than 1000W and vice versa. A device that draws around a sustained 900WDC from it (based on 90% PSU efficiency and Bitmain's spec of 1000W at the wall which is most likely underrated just like with the S1s) is too close for comfort for me.

You see, it's a matter of choice which you can't do anything about just like I can't do anything about your choices. Like I stated earlier, "knock yourself out" if you're comfortable with the stock 1000W S2 PSU. I couldn't care less. I just prefer to have at least a 1200W PSU for it for good reasons. That's all.

precrime3

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Im not really concerned about ROI (return of investment, how much it makes, not to be confused with break even) more about longetivity. The thing about GPU rigs they are reconfigurable. Once scrypt becomes commericiaized (ASICS) could just set it to mine vertcoin, and if asic for scrypt-n, keccak, etc,etc.... Where the limiting factor is how long the GPU can physically last running 24/7. I think in a little while, difficulty will level off, or bitcoin will become mainstream, so miners can make a decent income off of mining tx fees from all the transactions. That has what been holding me back from buying antminers. 540 gh/s won't last long in this game....

btc_jumpnrl

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I always use 20% for worst case scenario estimation. That way any price increase and or lower difficulty just adds to my profit. This release is cutting return way closer than their S1s though. Without power they will take 5 months to start RoI with April 1st start. With power you could possibly never make a return unless you sell after couple months. If they ship a week early it should barely break in 5 months with power. Hopefully the S2 is just as OC-able. Even a small 10% gain is worth the power increase. I figure the fans will have to be upgraded anyway (for noise mostly) , but i hope the PSU has some headroom.

Sushi could you please give us customers some more information on the fans (size/temps) and the PSU ?

klondike_bar

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Quote from: btcctb on March 16, 2014, 01:01:55 PM

Quote from: kendog77 on March 16, 2014, 12:53:48 PM

... these things will be lucky to ROI in BTC in 6 months...

what's the point to buy if ROI only in 6 months.. I must be missing something

Its an investment. There are very few investment vehicles that pay for themselves in 6months, and investors have to decide whether it will make a profit or a loss, as well as how much work will go into upkeep and cooling.

Don't buy it because someone else does. Buy it because you think it will make you a profit

Topic: ANTMINER S2 Discussion and Support Thread - page 210. (Read 355730 times)