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1  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 27, 2015, 02:28:09 AM
For oversea market, we only shipped out a very small amounts of 4.66th/s miners to customers in Batch1. If you didn't get the email from info@bitmaintech.com to confirm the 4.66th/s miner issue before, it indicates your miner is with 4.86th/s and you should use the 600M, 4.86th/s firmware directly.
for 4.45th/s miners, it's for domestic sales.



Can someone explain to me why are there 3 firmwares on BM site for S7:

600M 4.86TH/S
575M 4.66TH/S
550M 4.45TH/S

Can I use any of these firmwares on any batches of S7?

Example:
I have B2 unit can I put 600M firmware on it?
or I need to use 575M firmware?
what about 550M which batch is that one  Huh



What was your clock out of the box on B2?
2  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 26, 2015, 10:58:04 AM
 
Kind reminder:
When mining with S7, be sure that you've connected the internet properly and the internet is working well, otherwise, the boards may get burnt easily Sad
When you have time, please kindly upgrade your firmware with corresponding version in our website, it can do some help to avoid such issue.

https://bitmaintech.com/support.htm?pid=00720151023101739550pOBiK5sO06A0
3  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: August 30, 2015, 12:36:06 PM
  one coupon for one unit:)

I am new to coupons. Today I received 10 Coupon counts which says AntMiner S7 Coupon 100 USD. Does that mean I have 10x100 USD = 1000 USD Coupon? Can these coupons be used all at once or 10 orders separately?
4  Bitcoin / Hardware / Re: ANTMINER S5+ is available to order, 7.722TH/S 0.445J/GH on: August 20, 2015, 10:06:12 AM

ALL the 3 PCIE connectors are needed to be connected to power supply on each hash board since it is based on serial power solution and there is no DC/DC inside the miner. Including the one PCIE connector on control board, there are 28 connectors in total.
Several PSU will be needed to support the miner, anyone spare PCIE connector from PSU will be connected to control board.
But be sure to power all the other PSU first and power on the last PSU which control board is connected in the end. this is very important!! Smiley


You can use as many PSUs as you want as long as you don't have multiple PSUs powering the same individual board (of which there is 9).
Do all PCI ports need to be powered?  Or will it run with 2 on each board?  
2 is fine, still only about 165W per PCI-E.
Are you certain that using 2 is fine? The product description page says all three are required. It may be that each PCIe plug powers a specific set of chips; the 3 PCIe connectors may not share a common power bus at all as in, say, the S3 design. Without knowing the actual S5+ design, or having an actual unit to look at, saying "2 is fine" is only speculation at this point unless something more is known than what bitmain has disclosed so far.

Bitmain could confirm this here, but they aren't posting much these days. If anyone already has a unit, they could also confirm whether using 2 out of the 3 connectors works and post here.
What Bitmain customer Service told us was we have to use all 3 connectors for each board, As my understanding if each board need at least 382W(3436/9), in average each connector should be bear 127w@10.6A , and if it works  using only 2 connectors instead that will be 191w@15.9A for each connector , it is high risk to heat up or burn your cables if they are not good enough.    
This still doesn't answer the question of whether all 3 are *required* by design, or can 2 be used if the cables can handle the increased current?

BTW the power requirements aren't as high as you mention: 3436W quoted by bitmaintech is at the wall, using a 93% efficient PSU. So the DC power to the S5+ would only be 3436*0.93 or 3196 watts, or 355W per board. *If* the design allowed the use of 2 connectors per board, this would put 178W per connector (14.8A). This isn't bad, considering S3+ units can easily be powered with 2 PCIe cables and those use around 355W as well.
5  Economy / Service Discussion / Re: NEW: Hashnest PACMiC V3 - 0.666 BTC/THS on: August 13, 2015, 01:50:41 PM
  Cool Smiley thanks for your interest.
  follow this link directly: https://www.hashnest.com/l/Rz5jEPxvenE

My third try at a pin reset worked. Yeah

I am going to get a second contract for 1th

@ BITMAIN_YHQIN

the first 2 were  very slow to arrive at my email the third one came fast.
6  Economy / Service Discussion / Re: NEW: Hashnest PACMiC V3 - 0.666 BTC/THS on: August 13, 2015, 01:44:30 PM

after you click reset the trade PIN, go to your mail box to click the link immediately. one hour is too long and it'll get invalid.

and it will not let me put a trade pin in.  I waited an hour for the pin change to come to my email it did I clicked and it said not a valid token.

so I am waiting for a second email to fix my trade pin






7  Economy / Service Discussion / Re: NEW: Hashnest PACMiC V3 - 0.666 BTC/THS on: August 13, 2015, 01:24:29 PM
 
    it's for one year, 0.000000008*60*60*24*365=0.252288  Smiley

Could you provide your calculations on how the PACMiC V3 can achieve a 25% APR?  Does that assume  the auto rebuy feature is turned on all year long or some portion of the year?
8  Bitcoin / Hardware / Re: ANTMINER S5: 1155GH(+OverClock Potential), In Stock $0.319/GH & 0.51W/GH on: August 13, 2015, 01:19:11 PM
You can check it in official website via https://www.hashnest.com/l/KRdxloD8qmY, the green bar Smiley

scammer. beware

This is not a scam. You can buy a PACMiC on hashnest right now! Actually there is already 3000 of them sold.

Wow , really great , sold 3000 just open selling for hours , where can see the sold quantity ?

9  Economy / Service Discussion / Re: NEW: Hashnest PACMiC V3 - 0.666 BTC/THS on: August 13, 2015, 01:11:23 PM

  Correct link for Hashnest app is as below Smiley
  iPhone:https://itunes.apple.com/app/hashnest/id1005050524
  Android:https://www.hashnest.com/app
this is a spam link, don't click.



why it is a spam link!?  could u provide more details!



no body can provid more details? poor thing ...
10  Bitcoin / Mining speculation / Re: New antminer S-5+ selling options on: August 13, 2015, 12:10:46 PM

Hashnest is pleased to announce the latest version of our PACMiC cloud mining subscription! This newest offering, Version 3, offers a cheaper per-terahash price point and higher reward payouts than before.





Hashnest continues to be the world's leading cloud mining platform, and is one of the few cloud mining services to manufacture its own hardware. This significant advantage allows Hashnest to maintain a competitive edge over sites offering similar services. As a trusted supplier of physical mining hardware and ASIC chips, Bitmain & Hashnest are able to supply the large amounts of real hardware required to run such mining operations.

The PACMiC is a cloud mining offering for those who would like lower risk but more predictable and reliable payouts from their cloud mining contracts. PACMiC contracts do not charge a maintenance fee, and do not expire based on the cost of bitcoin. In fact, owning PACMiC is a way to hedge against bitcoin price drops, as PACMiCs give their owners mining revenue payouts even when the price is low.

This latest version of PACMiC offers users a bonus payment of 0.8 satoshis per second, per bitcoin outstanding until the contract ends.




About PACMiC

Each PACMiC V3 represents one terahash of mining power, and is sold for 0.666 BTC. The contract begins immediately upon completion of payment. Once the contract is in effect, users will immediately begin receiving the mining revenues from 1TH/s of mining power; payouts are according to AntPool’s PPLNS method. Electricity and maintenance fees will be borne
  
Each time a PPLNS payout is made, it will go towards paying back the 0.666 BTC initial purchase price. Additionally, a bonus payout of 0.8 satoshis per BTC per second is also made to the user. The contract expires when the user has mined the original 0.666 BTC purchase price. In the event that the mining machine becomes unprofitable (calculated using the electricity cost of USD$ 0.098), the contract will be suspended until such time that payouts are able to made again. Unlike regular cloud mining contracts, a PACMiC does not terminate when the bitcoin price falls too low, it just becomes inactive.

A 0.666 BTC PACMiC V3 contract represents 1 terahash of mining power, making the PACMiC V3 the cheapest cloud mining contract yet. Other cloud mining services generally price one terahash of mining power between 1.5 and 2 BTC.

With PACMiC, users no longer need to worry about high electricity fees or soaring difficulty. Mining with PACMiC is less stressful.

PACMiC Details

What is a Payout Accelerated Cloud Mining Contract (PACMiC)?
The PACMiC is a value-added cloud mining service product from Hashnest. The PACMiC is an electronic contract structured in a new way. BITMAIN will pay all the maintenance costs of the mining rigs, and all mining revenue will be used to pay back the PACMiC owners. While the principal is not yet paid back in full, it also makes bonus payments to PACMiC owners. When the principal is paid back, the mining rigs continue belong to BITMAIN. Both principal and bonus payments will be made to the contract holder based on the mining revenues of AntPool. Because PACMiC owners do not have to pay for maintenance or electricity on the machines, the payout is accelerated.

Purchasing a PACMiC
Each unit of PACMiC V3 will cost 0.666 BTC. Each PACMiC represents one terahash of hashing power. The contract will become active immediately upon receipt of full payment.

Computing principal and profit of an PACMiC
As soon as the PACMiC is activated, payouts will be made through Hashnest in accordance with the mining revenues generated by AntPool’s PPLNS payout method. Reward payments will be made beginning with the first block found by AntPool after the contract’s activation. From the first block until the contract’s expiry, reward payment will be accumulated every second, based on the total amount of the purchase price which has not yet been earned back through mining revenues.

Example: Alice’s PACMiC has already mined 0.166 BTC, so the contract will expire after mining 0.5 BTC more. Alice earns a reward payment of 0.4 satoshis per second based on her outstanding balance of 0.5 BTC. After mining 0.1 BTC more, her rewards rate is now 0.32 satoshis per second.

Profit Calculation Method
Outstanding [not yet mined] coins (BTC) * 0.8 (satoshis per BTC per second) * time to find a block (seconds). For every block found, the remaining mining revenues after the bonus is paid will count towards the outstanding bitcoin.
 
Please note: information on blocks found will only be transfered to Hashnest.com from AntPool after receiving six network confirmations. Because of this, profit and principal payments will be on a slight delay from the bitcoin network.

Contract Suspension
If after 120 days, a PACMiC has still not mined back its initial purchase price for the owner, and is not mining enough bitcoin to pay for its own electricity cost (fixed at 0.098 USD per kWh, calculated using AntMiner S5 specs, hashing at 100% uptime on PPLNS method), whether due to difficulty increase or BTC price decrease, the PACMiC will continue paying out for ten days as though it were running, even if the machine is turned off. If these conditions persist for ten continuous days, the contract will be considered temporarily suspended. During the suspension period, mining revenues and profit payments will be temporarily halted. If after the suspension period, difficulty has dropped or bitcoin price has risen, making mining possible again, the contract will be reinstated and continue from where it left off.

Contract Expiry
The contract expires when the user has mined enough BTC to cover their initial purchase price.
BITMAIN reserves the right to make mining payouts in advance, before the purchase cost has been paid back in full.


FAQ

Q: Can the PACMiC be sold or transferred to other users?
A: No, PACMiCs may not be traded or transfered to other users.

Q: Do PACMiCs deduct electricity and maintenance fees?
A: PACMiCs do not deduct electricity or maintenance fees, these expenses are covered by Bitmain.

Q: Can I redeem my PACMiC before contract expiry?
A: No. The contract will be closed automatically at the time that the initial contract price has been repaid in full. Contracts may not be terminated prior to this, although BITMAIN may exercise the option to make advance payouts of mining rewards.

Q: Does PACMIC offer hardware delivery after the contract ends?
No, PACMiC is different from Hashnest's other cloud mining services in this regard. After the contract ends, the machines remain the property of BITMAIN.

Q: If AntPool experiences bad luck, will this affect bonus payments?
A: Bonus payouts are calculated using the amount of initial contract price that has not yet been paid back, and are unrelated to the pool luck of AntPool. Changes in pool luck will only affect the speed at which mining revenues are paid. Bonus payouts are earned at a steady 0.8 satoshis per bitcoin outstanding per second.

Q: How can the user make a profit?
A: Bonus payouts are calculated using the formula: unpaid principal (BTC) * 0.8 (satoshis per outstanding BTC per second) * time to find a block (seconds). Mining revenue will first be used to make bonus payments, the remainder of mining revenue will then count towards paying back the initial purchase price.

Q:When does the user start to get the bonus payout? Where does the bonus go?
A: Bonus payout begins accumulating as soon as the first block after contract activation is found. The bonus is paid directly to user’s wallet on Hashnest.com.

Q: What does the Auto-Rebuy feature do?
After enabling the Auto-Rebuy feature, your bonus payout will be used to automatically and incrementally purchase more mining power through the PACMiC.
When the feature is disabled, mining revenue and bonus payouts will continue accumulating inside your account as usual.

Q: If I have auto-rebuy enabled, when do those GH/s expire?
Same terms as before -- PACMiC hashing power expires only when the purchase price has been paid back to the owner. If the BTC price drops too low and the contract does not generate revenue, the contract becomes suspended (but not ended) until such time that it may generate revenue again.

Q:When does the contract end?
A:When the initial purchase price has been paid back through mining revenues.

Q:Is the PACMiC risk-free?
A: Like all forms of bitcoin mining, there is a certain level of risk involved. If the Bitcoin network difficulty skyrockets, or if the price of bitcoin drops too much to cover the electricity fee, the Antminer S5 units backing the PACMiC may not be profitable to run and be forced to go offline, in which case contracts would be suspended (possibly indefinitely) and the user may not recover the initial cost of the miner. The AntMiner S5 is currently one of the most power efficient bitcoin miners available on the market, and would be among the last to be forced to power down under unfavorable market circumstances. All users should do their own research and understand the risks involved with bitcoin mining, and also to understand that there is no such thing as a risk-free product.



11  Economy / Service Discussion / Re: NEW: Hashnest PACMiC V3 - 0.666 BTC/THS on: August 13, 2015, 11:52:17 AM
Android:https://www.hashnest.com/app
it's just under the iOS app:)

WOW , I liked the hashnest APP.

But I can only found the iOS app here:https://itunes.apple.com/app/hashnest/id1005050524
do you have an android app? I mean, I can not found the android .apk file at here:https://www.hashnest.com/app


please provide the .apk file.




12  Economy / Auctions / Re: Advertise on this forum - Round 151 on: June 11, 2015, 04:51:32 AM
2 @ 2.05
13  Bitcoin / Hardware / Re: ANTMINER S5: 1155GH(+OverClock Potential), In Stock $0.319/GH & 0.51W/GH on: May 12, 2015, 03:01:05 AM

S5 Batch 5 is available to order now Smiley
https://bitmaintech.com/productDetail.htm?pid=00020150303095018716e2uWKIA70662
14  Bitcoin / Hardware / Re: ANTMINER C1 Discussion and Support Thread on: March 07, 2015, 12:46:51 PM
  Tracking number is provided via PM Smiley

Did anyone else buy a C1 during or after the holiday and has it shipped?
15  Bitcoin / Hardware / Re: ANTMINER S4 Discussion and Support Thread on: February 28, 2015, 06:34:08 AM

  PMed, please check.

Hi,

I will share my experience with my order, sorry if you are tired of reading same things.....but I need to share my feelings, hope that someone will be able to help me one way or other.

I bought 32 units on black friday, only after one week mining, 6 PSU gone, and one PSU fan.

I had to wait 20+ days to get the replacement PSU, didn`t send the fan ( I replaced myself and is not the fan so they should send another PSU).....and no compensation for all inconvenients coming from almost waisted miners they sent to us.

I said during that RMA that I was afraid cause 7 PSU broken on first week is almost 21,8% of mining power off, a whole month.

As is obvious we had to pay shipping costs and clearance for the PSU, again.

In the last week, 12 PSU gone away, one per day.....only some days before Bitmain warranty expires......

So, from 32 miners: 19 PSU failed....around ~30% of the order in the first trhree months.....wow.
Sadly four miners have got issues with:
 
 • Faulty chips, I made my own troubleshooting changing cables to isolate the problem, but Bitmain did not send anything......
 • Ethernet connection.
 • Fans in no working conditions.
 • Some of the cables, arrived broken, burnt, and full of dust and other rubbish. What kind of new is that? I have a video of that.
 • One ChipBoard has its Screwed 12V+  and GND- connectors  lost, cause the first time we had to screw off the cables they just got broken, just like if I had used a Katana and we were cartoon.
 • One miner only hashes if the initial Bitmain pool data is on the configuration, cause when we change it, the miner gets lazy, no hashing.
 
 I really enjoyed this order, my first order to Bitmain.....till now they did not solve any of my issues quickly....Mining Asic manufacturers.....I was dreaming that someone could make  the difference, not only on the technology, they should take care of their Customer department and the relationships they handle. Customer is the same as Future, why to renounce such way.

Best Regards.
16  Bitcoin / Hardware / Re: ANTMINER S3+ Discussion and Support Thread on: February 25, 2015, 04:17:06 AM
  Go to "Miner Configuration" and click "Save&Apply" button directly, cgminer will restart.

I've seen that my cgminer Elapsed time needs to be reset if the miner is down for a period or else the downtime is averaged into the hashrate.  I usually have an ssh session open to each miner and run a short shell script with /etc/init.d/cgminer stop && sleep 2 && /etc/init.d/cgminer start which resets the Elapsed time to zero.  Is there a Run command accessible from the GUI such that I don't need to do the restart from an ssh session?
17  Bitcoin / Hardware / Re: ANTMINER S3+ Discussion and Support Thread on: February 25, 2015, 02:20:36 AM

PMed, please check Smiley

I just bought 2 s3s a few days ago and one of the temp readings is very off. It reads 1-2 degrees and is obviously not possible for the amount that it's hashing. Is there any fix to this? I already tried to update firmware from stock to latest and it made no difference. I'm concerned because its off on the hotter side, so if temps go up, it may not shut down correctly once it reaches a critical temp and also could be a fire hazard.

Also, the fans in one are spinning much faster than the other, even though they are right beside each other and running off the same PSU (1000w Dell server PSU running at 800w since it's 120v). I do notice that the temps are slightly higher in the one where the fans run faster, but only by 2-3 degrees, so I don't see why the fans should be spinning 50%+ faster than the other. Maybe ripping it apart and reapplying some better thermal paste would help? Not sure if it's worth doing.



18  Economy / Service Discussion / Re: Bitmaintech will feature a huge discount on Bitcoin Black Friday on: November 29, 2014, 05:41:02 AM

BITMAIN's official website is https://www.bitmaintech.com[/size]

We can confirm. View the Bitmain deal and much more at: http://bitcoindiscounts.net

The official BF Bitmain page is: https://bitmaintechbf.com

*SCAM*

Did a who is on this domain and found:

Hosted in PANAMA!??!!?!?

bitmaintechbf.com registry whois
Updated 20 minutes ago - Refresh
Domain Name: BITMAINTECHBF.COM
Registrar: ENOM, INC.
Whois Server: whois.enom.com
Referral URL: http://www.enom.com
Name Server: DNS1.NAMECHEAPHOSTING.COM
Name Server: DNS2.NAMECHEAPHOSTING.COM
Status: clientTransferProhibited
Updated Date: 15-nov-2014
Creation Date: 15-nov-2014
Expiration Date: 15-nov-2015
bitmaintechbf.com registrar whois
Updated 20 minutes ago
Domain Name: BITMAINTECHBF.COM
Registry Domain ID: 1885420334_DOMAIN_COM-VRSN
Registrar WHOIS Server: whois.enom.com
Registrar URL: www.enom.com
Updated Date: 2014-11-15T04:29:56.00Z
Creation Date: 2014-11-15T12:29:00.00Z
Registrar Registration Expiration Date: 2015-11-15T12:29:00.00Z
Registrar: ENOM, INC.
Registrar IANA ID: 48
Registrar Abuse Contact Email: email@enom.com
Registrar Abuse Contact Phone: +1.4252982646
Reseller: NAMECHEAP.COM
Domain Status: clientTransferProhibited
Registry Registrant ID:
Registrant Name: WHOISGUARD PROTECTED
Registrant Organization: WHOISGUARD, INC.
Registrant Street: P.O. BOX 0823-03411
Registrant City: PANAMA
Registrant State/Province: PANAMA
Registrant Postal Code: 00000
Registrant Country: PA
Registrant Phone: +507.8365503
Registrant Phone Ext:
Registrant Fax: +51.17057182
Registrant Fax Ext:
Registrant Email: email@WHOISGUARD.COM
Registry Admin ID:
Admin Name: WHOISGUARD PROTECTED
Admin Organization: WHOISGUARD, INC.
Admin Street: P.O. BOX 0823-03411
Admin City: PANAMA
Admin State/Province: PANAMA
Admin Postal Code: 00000
Admin Country: PA
Admin Phone: +507.8365503
Admin Phone Ext:
Admin Fax: +51.17057182
Admin Fax Ext:
Admin Email: email@WHOISGUARD.COM
Registry Tech ID:
Tech Name: WHOISGUARD PROTECTED
Tech Organization: WHOISGUARD, INC.
Tech Street: P.O. BOX 0823-03411
Tech City: PANAMA
Tech State/Province: PANAMA
Tech Postal Code: 00000
Tech Country: PA
Tech Phone: +507.8365503
Tech Phone Ext:
Tech Fax: +51.17057182
Tech Fax Ext:
Tech Email: email@WHOISGUARD.COM
Name Server: DNS1.NAMECHEAPHOSTING.COM
Name Server: DNS2.NAMECHEAPHOSTING.COM
DNSSEC: unSigned
URL of the ICANN WHOIS Data Problem Reporting System: http://wdprs.internic.net/
Last update of WHOIS database: 2014-11-15T04:29:56.00Z

@bitcoindiscounts I reported you to mods for confirming a scam, and asked the mods to ban your account. You dont belong here with honest people.

Ive also reported you to Bitmaintech, I hope they hunt you down.
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