ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 34.

fullzero

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Quote from: generalt on March 26, 2016, 11:34:27 AM

I'm guessing supply and demand. Demand has dropped so they have too much supply and to reduce their inventory they have to let them go cheaper. In letting them go for cheaper more people buy them and push up the difficulty. The higher the difficulty the harder it is for bitfury or any other manufacturer to release and device that would be marketable at an affordable price. There's no wait time on this batch at all. Usually there's a one to two week lead time between batches but this one ships within five days so they're sitting on a bunch of these I'm guessing.

I agree, Bitfury missed their window for home miners. Awaiting S9.

Thoughts on design / power consumption?

generalt

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Quote from: Legacy2005 on March 26, 2016, 10:54:52 AM

my question is why the sudden surge of coupons. seems a bit fishy that they suddenly care about their customers and want to offer them a large discount. Are these units actually new stock or stock that "tested" and is being pulled off their farms so new faster/better stock can go in. Really no way to tell if a unit is "used" or "new" if it has been cleaned/maintained well.

I'm guessing supply and demand. Demand has dropped so they have too much supply and to reduce their inventory they have to let them go cheaper. In letting them go for cheaper more people buy them and push up the difficulty. The higher the difficulty the harder it is for bitfury or any other manufacturer to release and device that would be marketable at an affordable price. There's no wait time on this batch at all. Usually there's a one to two week lead time between batches but this one ships within five days so they're sitting on a bunch of these I'm guessing.

philipma1957

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Quote from: vortexz on March 26, 2016, 11:28:22 AM

I guess we will soon see a large diff increase, again
Because they are replacing the S7 with new miners
Good luck making ROI Tongue

just mine man mine.

BTW I had 36 now have 35 coupons.

vortexz

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I guess we will soon see a large diff increase, again
Because they are replacing the S7 with new miners
Good luck making ROI Tongue

Legacy2005

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my question is why the sudden surge of coupons. seems a bit fishy that they suddenly care about their customers and want to offer them a large discount. Are these units actually new stock or stock that "tested" and is being pulled off their farms so new faster/better stock can go in. Really no way to tell if a unit is "used" or "new" if it has been cleaned/maintained well.

not.you

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The biggest problem I see with these cheaper and cheaper batches is that ROI on the older batches just keeps looking worse. I have S7 miners from 3 different batches and ROI is closer on the most recent one than the oldest ones. The price on the newer batches drops faster than the income on the previous ones which means that sitting on BTC all along would actually have been more profitable than buying. Another thing that is bugging me about these is the ROI time, due to the huge difficulty jump, is much longer than with some of the previous antminers. And trusting a machine to stay working for 6 months to make ROI is risky. I have two different miners that each cost more than 1k at purchase that are mining at less than full capacity due to blade failures and without warranty there is nothing I can do. The odds of them making a break even return are basically zero already.

cosmicwave

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Quote from: philipma1957 on March 26, 2016, 06:26:41 AM

Quote from: cosmicwave on March 26, 2016, 05:34:29 AM

Quote from: adaseb on March 26, 2016, 03:22:57 AM

Quote from: cosmicwave on March 26, 2016, 01:32:26 AM

Quote from: adaseb on March 26, 2016, 01:08:27 AM

You can't mine with a S7 if you live in a dorm because its too loud. Maybe get an A6 or S3

I dunno, downgrading to a lower hashing rate for a greater premium doesn't really entice me heh. My "dorm" is also more like an apartment and I'm by myself so that's like +9999 points for the S7. Cheesy

A little sound doesn't bother me tbh, especially when it yells "ching cha ching."

Do you work/sleep in the same room as the miner?

Yup. I can always throw it in the bathroom... although the machine probably wouldn't like my 1 hour steaming hot showers too much. Grin

#miningstruggles

buy it then lower the freq from 700 to 500 and lower the fans to 30- 35%

lastly put a piece of flex duct on it.

http://www.lowes.com/pd_481274-85334-MEA-1225-6___?productId=50401806&pl=1&Ntt=flex+duct

set the miner fully inside this duct about 1 foot from the opening. punch/cut a hole in the duct so the power cables get inside .

you can then direct the tube to push the hot air out of the room via a window.

That's an interesting idea. I love how anyone can get so creative with different ways to tackle problems when optimizing the mining process. Fortunately I have a giant AC unit right in the middle of one of the windows. Heat shouldn't be an issue but I'll probably set the miner to blow it's heated exhaust into/near the intake of the AC.

philipma1957

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'The right to privacy matters'

Quote from: cosmicwave on March 26, 2016, 05:34:29 AM

Quote from: adaseb on March 26, 2016, 03:22:57 AM

Quote from: cosmicwave on March 26, 2016, 01:32:26 AM

Quote from: adaseb on March 26, 2016, 01:08:27 AM

You can't mine with a S7 if you live in a dorm because its too loud. Maybe get an A6 or S3

I dunno, downgrading to a lower hashing rate for a greater premium doesn't really entice me heh. My "dorm" is also more like an apartment and I'm by myself so that's like +9999 points for the S7. Cheesy

A little sound doesn't bother me tbh, especially when it yells "ching cha ching."

Do you work/sleep in the same room as the miner?

Yup. I can always throw it in the bathroom... although the machine probably wouldn't like my 1 hour steaming hot showers too much. Grin

#miningstruggles

buy it then lower the freq from 700 to 500 and lower the fans to 30- 35%

lastly put a piece of flex duct on it.

http://www.lowes.com/pd_481274-85334-MEA-1225-6___?productId=50401806&pl=1&Ntt=flex+duct

set the miner fully inside this duct about 1 foot from the opening. punch/cut a hole in the duct so the power cables get inside .

you can then direct the tube to push the hot air out of the room via a window.

Real-Duke

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Quote from: cosmicwave on March 26, 2016, 05:34:29 AM

Yup. I can always throw it in the bathroom...

Little proof for what you can expect: https://www.youtube.com/watch?v=_njnHrT9vHA
Turn it up! Grin

cosmicwave

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Activity: 7

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Quote from: adaseb on March 26, 2016, 01:08:27 AM

Then this is probably not the miner for you. Trust me you won't be able to stand the noise. Try getting an A6 instead.

I looked up the decibel levels and it does seem that the S7 does make quite some noise. From what I gather it typically outputs about 60-70 dB, similar to a hairblower. Although that is quite some noise, I think I can tolerate it. I guess it can join the orchestra in my room along with my PC and huge AC running all day long.

This aside, the noise in the S7 comes from its fans right (that's the only moving part I can think of)? Could I not just replace the stock fans with quieter fans if noise was a concern?

AriesIV10

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Mine for a Bit

ROI looks pretty good and with the $100 coupon and quick shipping even better.

adaseb

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Up to 300% + 200 FS deposit bonuses

Quote from: cosmicwave on March 26, 2016, 05:34:29 AM

Quote from: adaseb on March 26, 2016, 03:22:57 AM

Quote from: cosmicwave on March 26, 2016, 01:32:26 AM

Quote from: adaseb on March 26, 2016, 01:08:27 AM

You can't mine with a S7 if you live in a dorm because its too loud. Maybe get an A6 or S3

I dunno, downgrading to a lower hashing rate for a greater premium doesn't really entice me heh. My "dorm" is also more like an apartment and I'm by myself so that's like +9999 points for the S7. Cheesy

A little sound doesn't bother me tbh, especially when it yells "ching cha ching."

Do you work/sleep in the same room as the miner?

Yup. I can always throw it in the bathroom... although the machine probably wouldn't like my 1 hour steaming hot showers too much. Grin

#miningstruggles

Then this is probably not the miner for you. Trust me you won't be able to stand the noise. Try getting an A6 instead.

cosmicwave

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Quote from: adaseb on March 26, 2016, 03:22:57 AM

Quote from: cosmicwave on March 26, 2016, 01:32:26 AM

Quote from: adaseb on March 26, 2016, 01:08:27 AM

You can't mine with a S7 if you live in a dorm because its too loud. Maybe get an A6 or S3

I dunno, downgrading to a lower hashing rate for a greater premium doesn't really entice me heh. My "dorm" is also more like an apartment and I'm by myself so that's like +9999 points for the S7. Cheesy

A little sound doesn't bother me tbh, especially when it yells "ching cha ching."

Do you work/sleep in the same room as the miner?

Yup. I can always throw it in the bathroom... although the machine probably wouldn't like my 1 hour steaming hot showers too much. Grin

#miningstruggles

vortexz

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Activity: 1120

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I am also selling S7 coupon:

https://bitcointalksearch.org/topic/wts-antminer-s7-100-coupons-004-btc-each-1412911

adaseb

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Quote from: willi9974 on March 26, 2016, 04:11:25 AM

Hello Miner,

i have 2 Coupons (S7 Coupon 100 USD) and will sell it for 0,1 BTC for each.

If you will buy one or all send the BTC to my wallet and send me your Mail and Bitmaintech.com Account ID

My Address: 1Q8VghUJkNeFnaKy553b9buUWKxFYL579G

Best Regards,
Willi

LOL! People are giving these away for free or for 0.01 BTC.

willi9974

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Escrow Service

Hello Miner,

i have 2 Coupons (S7 Coupon 100 USD) and will sell it for 0,1 BTC for each.

If you will buy one or all send the BTC to my wallet and send me your Mail and Bitmaintech.com Account ID

My Address: 1Q8VghUJkNeFnaKy553b9buUWKxFYL579G

Best Regards,
Willi

adaseb

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Up to 300% + 200 FS deposit bonuses

Quote from: cosmicwave on March 26, 2016, 01:32:26 AM

Quote from: adaseb on March 26, 2016, 01:08:27 AM

You can't mine with a S7 if you live in a dorm because its too loud. Maybe get an A6 or S3

I dunno, downgrading to a lower hashing rate for a greater premium doesn't really entice me heh. My "dorm" is also more like an apartment and I'm by myself so that's like +9999 points for the S7. Cheesy

A little sound doesn't bother me tbh, especially when it yells "ching cha ching."

Do you work/sleep in the same room as the miner?

cosmicwave

newbie

Activity: 7

Merit: 0

Quote from: adaseb on March 26, 2016, 01:08:27 AM

You can't mine with a S7 if you live in a dorm because its too loud. Maybe get an A6 or S3

I dunno, downgrading to a lower hashing rate for a greater premium doesn't really entice me heh. My "dorm" is also more like an apartment and I'm by myself so that's like +9999 points for the S7. Cheesy

A little sound doesn't bother me tbh, especially when it yells "ching cha ching."

cosmicwave

newbie

Activity: 7

Merit: 0

Quote from: adaseb on March 26, 2016, 12:51:47 AM

So why offer a $100 coupon and not just make the price $100 less?

Psychological reasons? Where if you have the coupon you think its an opportunity?

I think it's pretty intelligent what Bitmain is doing.

1) The $100 coupons will drive up demand for the S7's they're trying to release. Demand is surely not what it once was with the halving coming up & increases in difficulty. I'm sure they have an efficient manufacturing process that's able to mass produce these machines. I think it's simply more profitable for them to drive up demand with incentives rather than to scale down their manufacturing process (especially in the long run). That's probably why the prices on the machines have been incrementally decreased with newer batches.

2) The coupons seem to be aimed directly at previous customers, it gives the illusion that Bitmain is giving back to their loyal customers and the mining community. From a PR stance, IF or when bitmain releases new products, previous customers who were satisfied will probably make a bulk of their orders.

3) Many people will purchase at MSRP and don't know about the coupons or wont bother trying to get them.

It would really suck if the next generation of miners are released a week or two after I place my order. It's not crazy to think they'll be released soon with diminishing demand/returns on their increasingly more primitive S7's.

adaseb

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Quote from: cosmicwave on March 26, 2016, 12:58:21 AM

Quote from: aarons6 on March 26, 2016, 12:32:28 AM

Quote from: nhando on March 26, 2016, 12:26:17 AM

Quote from: cosmicwave on March 26, 2016, 12:15:51 AM

I've learned so much from spending the the past few days reading this thread! The culture here is awesome. Keep it up! Wink

I'm looking forward to buying my first ASIC ever with bitmain's S7 batch 15, especially now that they are so much more affordable. I would be so excited if I could even get back 75% of what I put into the hardware. It's really the knowledge I gain and being apart of the mining culture that's priceless to me.

At $482 after the coupon, it's really hard not to ROI unless you buy super expensive PSU and have crazy high electric rate.

dont forget you only have about 100 days till the halving.. so maybe not.

I'll have to buy the EVGA 1600W Gold PSU to take care of my S7, that will hurt my bank a little unfortunately lol. :*( I'm in college right now so I'm one of the few fortunate people blessed with free electricity. I might as well have a miner running on the side to recoup back some of my tuition fees. Hehe >

Given my situation, I'm not too worried about the long term repercussions of the halving. I was going to invest some money into buying bitcoin directly, but the alternative (mining) seems to be so much more fun and better in the long term.

You can't mine with a S7 if you live in a dorm because its too loud. Maybe get an A6 or S3

Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 34. (Read 527791 times)