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

[Moria843]

so the best option and make individual order?
But then by individual order bitmain you ship them all together the same
and customs always fuck

I made a purchase for 8 miners on 8 individual orders and received them on the same day with no payment.  It has been working for me so far.

I feel sorry for you dmwardjr, hope it's just a mistake.

I too have always used UPS many times in the past and never paid anything other than shipping (once Bitmain stopped including). Total of 8 S1s, 5 S3s, and 1 S7 directlly from Bitmain. But, I never ordered more than 3 units at once. I wonder what the cutoff is or if the laws have changed recently and my bill for the S7 I received on 18 Dec is still in the mail.

[Tupsu]

SOMETHING WORTH A TRY

SHIPITO.COM

SHIPS TO AMERICA OR OTHER CHOSEN DESTINATION,DECLARE WHAT YOU WANT AND RESHIP TO YOU IN E.U.

Scream how much you want , it does not seem credible to me.

[aurel57]

Can anyone else who received shipments via UPS from China provide the "Duty Class" number UPS provided in an envelope mailed to you?  I could use it during my dispute with customs.

dmwardjr I only had 1 miner sent to me in Indiana by UPS from Bitmain and have not received anything from UPS about any money due.

On another note has anybody received the compensation from B1 yet. I provided my wallet information as was requested but have not seen it come thru yet.

[dmwardjr]

Keep us posted on how it goes DMwardjr.  That's a huge bill so if you're able to get them to hold the charge for 6 months or win, that's almost another S7 right there!  =)

I'll keep you posted.

[Prelude]

Really sucks since you weren't expecting the bill, but holy shit you've got it good. An S7 import into Canada is ~$300 and never free. You guys have it customs free 99% of the time, and when it isn't it's a pittance.

Hope you can get it resolved with the appropriate entity none the less!

[marvykkio]

so the best option and make individual order?
But then by individual order bitmain you ship them all together the same
and customs always fuck

I made a purchase for 8 miners on 8 individual orders and received them on the same day with no payment.  It has been working for me so far.

do you mean that you did not pay customs?

[dmwardjr]

Can anyone else who received shipments via UPS from China provide the "Duty Class" number UPS provided in an envelope mailed to you?  I could use it during my dispute with customs.

dmwardjr I only had 1 miner sent to me in Indiana by UPS from Bitmain and have not received anything from UPS about any money due.

On another note has anybody received the computation from B1 yet. I provided my wallet information as was requested but have not seen it come thru yet.

That's usually the way it goes with only about 3 or less.  Same here.  I've had only one miner and even 3 miners sent at one time without additional charges from UPS.  However, when I had 5 x S4's shipped, I had additional charges.  When I had 6 x S5's shipped, I had additional charges.  When I had 9 x S7's shipped, I had additional charges.  And of course, when I had these 23 x S7's shipped I had some serious additional charges.

[dmwardjr]

Really sucks since you weren't expecting the bill, but holy shit you've got it good. An S7 import into Canada is ~$300 and never free. You guys have it customs free 99% of the time, and when it isn't it's a pittance.

Hope you can get it resolved with the appropriate entity none the less!

Thanks, Prelude.  I hope to get it resolved easily without having to pay upfront.  If UPS makes threats of late fee charges without up front payment while submitting claim for me, I'm done with them.

Unfortunately, I cannot talk to anyone about it until Monday.

[marvykkio]

I am afraid of the taxes that I can search for both the customs and also fedex

[marvykkio]

SOMETHING WORTH A TRY

SHIPITO.COM

SHIPS TO AMERICA OR OTHER CHOSEN DESTINATION,DECLARE WHAT YOU WANT AND RESHIP TO YOU IN E.U.

Scream how much you want , it does not seem credible to me.

It does not look bad service shipito.com
But I do not understand a thing.
if I buy from bitmain, and I send it in Austria, I have to pay customs fees in Austria, and then I have to pay shipping from Austria to Italy + shipping.

where's the savings ?

[Prelude]

If you've had issues with B8: https://bitcointalk.org/index.php?topic=1313617.0

[marvykkio]

many of you in the past have criticized me because I have always said that bitmain uses bad material
  as you can see there are always problems, and there will be even more miner who will build

[djroadking]

Haven't ordered an S7 yet... Probably will order tomorrow since I will have time off work. Have never ordered anything from bitmain so maybe customs will get me or not who knows. Ordering only 1 miner.

[soyab0007]

What will be the custom charges in India for 1 machine?

[lanfeusst]

it possible to get the PWM to go lower? If i enter 1%, 5%, 10% there's no noticed difference in volume.

noise isnt bad, about equal to an S3 in a warm room, maybe a tad more 'penetrating'. With the cold air from outside, I can achieve good hashrates with a low fanspeed, but if i could get it 20% quieter at the cost of ~200GH I'd be happy to do so.

Without the cold air from outside, low-rpm is far from sufficient if i am tageting a 55-60C operational temperature
20C (ambient) = 3.6TH
10C = 4TH
5C = 4.3TH
0C = 4.6TH
-5C = 4.8TH (and 0.011% errors, havent pushed further yet)

It is possible to go lower than 20% PWM with my modified bitmain_spi file :
The only modification is that it can go to 10% min instead of 20% min. (You still need to set the fan percentage to what you want  : example 18%)
This allows to effectively  decrease the noise from the s7 (totally silent if set at 10%) if you are in a very cold ambient temperature or if you downclock the frequency seriously
It should not be used if the temperature is > 70°C. Check that the stop miner when temp is over 80°C box is checked in the configuration page.

Download here :
https://mega.nz/#!8BUVVa7K!pSyaXVVjxfkthPdgJUSabKQQaRiVi1s6-zct5Ob32iM
The original is here if you need it :
https://mega.nz/#!MctVRR7D!lEEb0NvQQNtAemzYNawEAtp8qMVi75dxOLqwNFqv7To

To use it :
scp bitmain_spi_s7_fan_10.ko root@192.168.0.16:/config/           #Copy the file to the miner
then ssh to the miner :
ssh root@192.168.0.16
then :

Code:

cp /lib/modules/3.8.13/kernel/drivers/bitmain/bitmain_spi.ko /config/bitmain_spi_original.ko        #Makes a backup
cp /config/bitmain_spi_s7_fan_10.ko /lib/modules/3.8.13/kernel/drivers/bitmain/bitmain_spi.ko         # Copy the new file to the good place
/etc/init.d/cgminer.sh stop ; /etc/init.d/cgminer.sh start                                    #restart cgminer

The modification will be gone if you restart your miner.
If you want to do it again after a restart you only need to do the two last command :

Code:

cp /config/bitmain_spi_s7_fan_10.ko /lib/modules/3.8.13/kernel/drivers/bitmain/bitmain_spi.ko         # Copy the new file to the good place
/etc/init.d/cgminer.sh stop ; /etc/init.d/cgminer.sh start                                     #restart cgminer

If my new binaries help you and you are satisfied, consider helping me by sending some bitcoins to my address:
1NfUptoShEtSD2SQV2f45Xr1bTysFnsHiU

Warning: Do nothing you don't understand ; No warranties whatsoever are given by me ; this could not work or be useless ; this could burn your S7 or make it useless ; this could void your warranty with bitmain.

It works! looking at the two files, seems the difference is 2-3 hex values that are modified. The method provided above works, but heres the easy way for those on windows:

CAUTION: comparing the modified file against the original THAT WAS ON MY BATCH 8 shows a large number of differences, as does comparing my original with the "original" file uploaded above.  The vast majority of changes seem to be incremental hex values: 4F becomes 4E, 83 becomes 82, 9A becomes 99, etc. not sure why though

SOLUTION: using a site like www.diffnow.com, compare the existing bitmain_spi.ko file with the modified one provided above. If there are only 2-3 changes its safe to change. If Its a batch8 system, Ive made a modified file here:  https://mega.nz/#!wAcA3SrZ!2cVcpIR4qjJY2xmFvRREOMlVYFLk6YtzIxQNteGdWe0  (works to 10% fan, and with this the system runs fans at max when changing settings, as it did when stock) (based on this original (S7, B8): https://mega.nz/#!kYdC2bTD!kcBid6lMeN9ygYxJ2sprMhRBmDJ-bwaBO3ldZPCHWiU)


1) download the modified file above.
2) download and run winscp.
3) connect to miner (SCP mode, port 22, root/admin). navigate to folder:   /lib/modules/3.8.13/kernel/drivers/bitmain/
4) rename bitmain_spi.ko to bitmain_spi_original.ko
5) transfer the bitmain_spi_s7-fan_10.ko file to that directory, and then rename as bitmain_spi.ko
6) login to the miner's webUI. change fan setting there and "save&apply"
Not sure if changing it this way will survive a reboot, but the process is simple to repeat.

OPTIONAL:
7) copy the bitmain_spi_s7_fan_10.ko file to /config/bitmain_spi_s7_fan_10.ko
if modifications are lost on system restart, SSH in and type:    

Code:

cp /config/bitmain_spi_s7_fan_10.ko /lib/modules/3.8.13/kernel/drivers/bitmain/bitmain_spi.ko         # Copy the new file to the good place
/etc/init.d/cgminer.sh stop ; /etc/init.d/cgminer.sh start                                     #restart cgminer

interesting sidenote, when changing settings in the lanfeusst version, the fan goes quiet, then spins up (before it went full blast, then reduced speed)

Nice
I guess you did the modification for the new firmware dated 2015-12-11.
My S7 Batch 1 was with the 10-23 firmware that is why there is so many difference between our 2 files.
That also means they finally fixed the burn to death issue with auto on the december firmware. Since it will now go full blast if it loses internet connection instead of going to 20% before on auto.

The sound is natural to  an with such high rpm and airflow, dissipating 1200W+ in a short tube. The SP20 was equally loud, almost worst at full speeds, most people had to run it <900W if they wanted the fans to spin at a LESS-loud speed. same for gear like the S5, SP10/SP3x

With the software tweak to get fans <20%, noise is actually quite bearable. I have them machine fed 0C outside air, so can keep the volume down without much issue.

20% fan @ 4.7TH with 62-67C temperatures (board 3 is hottest?). noise is as good as the S3
17% fan @ 4.5TH. noise is totally acceptable to be in the main room
15% fan @ 4.3TH. quiet. similar to a game console or desktop computer that has loud(ish) fans

Happy to see you can enjoy nice silence now.

[lanfeusst]

Holy Smoking HOT!  That is really pushing it.  Keep us informed if you have any issues.  You are getting COIN right now and I hope that you can continue to get COIN later! 

Yes, I'm like you.  I wonder how long it will last?  

Anyway, THAT is some serious mining there with the S7.  Can't be done without increasing the voltage.  Great job!

Keeping you updated :
My S7 Batch 1 is still going strong at 700 Mhz, 12.75 V :

[yslyung]

What will be the custom charges in India for 1 machine?

on top of table or below the table ? hmmm

[Seba13xp]

Holy Smoking HOT!  That is really pushing it.  Keep us informed if you have any issues.  You are getting COIN right now and I hope that you can continue to get COIN later!  

Yes, I'm like you.  I wonder how long it will last?  

Anyway, THAT is some serious mining there with the S7.  Can't be done without increasing the voltage.  Great job!

Keeping you updated :
My S7 Batch 1 is still going strong at 700 Mhz, 12.75 V :
https://i.imgur.com/wh99gDA.png

How much are you making on kano pools daily avg. thinking about switching but what to make at less 0.032 btc daily.

[Questor]

Holy Smoking HOT!  That is really pushing it.  Keep us informed if you have any issues.  You are getting COIN right now and I hope that you can continue to get COIN later!  

Yes, I'm like you.  I wonder how long it will last?  

Anyway, THAT is some serious mining there with the S7.  Can't be done without increasing the voltage.  Great job!

Keeping you updated :
My S7 Batch 1 is still going strong at 700 Mhz, 12.75 V :
[IMAGE REDACTED]

Are you able to measure your draw with that stepped up supply?

[lanfeusst]

Holy Smoking HOT!  That is really pushing it.  Keep us informed if you have any issues.  You are getting COIN right now and I hope that you can continue to get COIN later!  

Yes, I'm like you.  I wonder how long it will last?  

Anyway, THAT is some serious mining there with the S7.  Can't be done without increasing the voltage.  Great job!

Keeping you updated :
My S7 Batch 1 is still going strong at 700 Mhz, 12.75 V :
[IMAGE REDACTED]

Are you able to measure your draw with that stepped up supply?

Yes, The power comsumption at the wall is 1590 watts => 0.28 J/Gh ( psu is dps-2000bb )