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

[OgNasty]

I wanted to post my recent experience with Bitmain.  After having a brand new unit's controller die within the first days of use, I contacted Bitmain and was less than pleased by their proposed solution (ship the entire unit to China and wait for a response).  Thankfully, I stumbled upon the Bitmain USA team and contacted them.  They went above and beyond to make sure I was satisfied with the resolution, and I am appreciative for their assistance.  I highly recommend dealing with their USA team out of Denver to make your life easier when dealing with Bitmain products or services.  Here's their number.  (844) 248-6246

[hawkfish007]

All,

I need a suggestion. I order BITMAIN AntMiner APW3-12-1600 PSU Series with ANTMINER S7 BATCH 3 recently. Order hasn't shipped yet.

I am double minded about PSU; will that work in America?
https://www.bitmaintech.com/productDetail.htm?pid=000201505040743496917U7kGsCm0694

Voltage Range
176-264V AC
 
Starting Voltage
200-205V AC

Would some help me please..

Yes, it works in America.  However, you need access to 208 to 240 Volts instead of 120 Volts.  This would be a 2 poll breaker in the Main Service Panel and a minimum of 20 amps with 12 AWG wiring.  If 2 poll 30 amp breaker, you need 10 AWG wiring.  I don't think you are going higher than 30 Amps if you are installing a 240 volt outlet for the BMT 1600 watt PSU if you are in your home.  I would suspect if you were in a data center, you would not have asked this question.

240 Volts is the way to go.  You can run twice as many rigs than you can with 120 Volts.  If you don't know what you're doing with electricity, get some help locally.

Could easily get away with a 2 pole 15A 240V breaker and 14GA wire if all he wants to power is 1 or 2 bitmain PSUs. If more, 30A and PDU.

I agree.  We just don't know if he's comfortable taking out a single pole 15 amp and replacing it with a 2 pole 15 amp.  He might need to use a tandem breaker to make room in main service panel.  He would have to make sure no other NON-240 Volt devices are plugged into the circuit to prevent potential fire.  It would be best to have a dedicated circuit made just for the rig with its PSU.  It's quite common for circuits to be looped (in a string) for receptacles (outlets), switches and lighting.  I would be concerned about other devices connected to this circuit that would not handle the pressure of 240 Volts if someone were to accidentally plug a device not made for 240V at another outlet on the same loop as the circuit he upgraded to 240V.

It's best IMHO to make (create) dedicated 240V circuits just for the mining rig(s) and PSU's to avoid possible fire from circuits plugged into looped outlets on the same circuit that were designed for 120 Volts.

I've never tried plugging in a lamp [designed for 120V] in an outlet that was upgraded to 240 Volts.  I have no idea what would occur.  It may be you have experience with this and had no issues.  I can't elaborate on that cause I really don't have experience.  However, I'm usually one to go by the specifications laid out by the manufacturer of the appliance or light lamp.  If the specifications state 120V @ 60 Hz with no mention of 240 Volts, I keep it only in 120 Volts.  That's just me.  Maybe I should check it out some time to see what would happen.  However, I think I would run a line outside to the driveway to see what would occur as a precaution.

When I set up my 240 volt dedicated line, I plugged a 120 volt fan into it just to check if power was there. Well, the fan worked.... on super speed. If I had a hair piece, I would have lost it. Needless to say, I unplugged it quickly.

I installed L6-30R receptacles for 2 of my 240V lines so regular 120V plug can't be used.

[HerbPean]

I wanted to post my recent experience with Bitmain.  After having a brand new unit's controller die within the first days of use, I contacted Bitmain and was less than pleased by their proposed solution (ship the entire unit to China and wait for a response).  Thankfully, I stumbled upon the Bitmain USA team and contacted them.  They went above and beyond to make sure I was satisfied with the resolution, and I am appreciative for their assistance.  I highly recommend dealing with their USA team out of Denver to make your life easier when dealing with Bitmain Products or Services.  Here's their number.  (844) 248-6246

Any email ? I need a S5 daughter board. (18 pins)

Thanks

[ATCkit]

Correct.
I had a Isobar 4/220 surge bar on hand and used it to do the test.

http://www.tripplite.com/surge-protector-isobar-4-outlets-1.8m-cord-330-joule~ISOBAR4220/

EDIT: I replaced the plug that came with the Isobar with a L6-30 plug.

[dmwardjr]

That psu has six 30 amp rails.
You will need to be very lucky to get it to work.


If you do two cables to one rail five times you will be using 5/6 of the rails at a max of thirty amps each rail.

You will over load a rail if you put three cables on it.
So to load that psu correctly you will need to research how a rail feeds to the pcie jacks.

Good luck as it can be done correctly

Hmmmm

You're actually right about that.  It makes you wonder why they bother labeling it the wattage they rate it if there is risk of overloading a rail.

Thanks for further investigating, philip.

It may be too late.  He may have ordered the PSU already.

EDIT:

My Corsair AX860's have what is called "Active Power Factor Correction (PFC) with PF value of 0.99"  I've had two of them powering an S7 since Friday, October 16 and the cables are not even warm.  The PSU's are not hot either.  I'm not quite sure what Power Factor Correction implies.  I'm wondering if this means it has a means of distributing the the power appropriately where it needs to go without over heating?

Here is a link to the Corsair AX860 with specifications:  http://www.corsair.com/en-us/ax860-atx-power-supply-860-watt-80-plus-platinum-certified-fully-modular-psu

Again, I'm a big fan of buying used server PSU's like the IBM 2880W PSU's powered off 240V.  

[Biodom]

This hash board burning instance if the internet fails.

What is happening? Do the fans shut down when the internet is no longer sensed? If that is the case, it would not be hard to add a separate fan controller to keep the fans push/pulling air across the boards as a safety precaution while or if they ( Bitmain ) even bothers to provide a fix.

I suspect if it is happening it is something hard to replicate.  I never could replicate on my S5, but some had the issue and was a pain for them.  On S5 I even without internet a few times never had a big issue.

On S7 it is kinda scary to hear people mention this problem.  I'm hoping it's a very small subset of machines.   

probably large enough for their customer service/engineer guy to post it here

[ATCkit]

I wanted to post my recent experience with Bitmain.  After having a brand new unit's controller die within the first days of use, I contacted Bitmain and was less than pleased by their proposed solution (ship the entire unit to China and wait for a response).  Thankfully, I stumbled upon the Bitmain USA team and contacted them.  They went above and beyond to make sure I was satisfied with the resolution, and I am appreciative for their assistance.  I highly recommend dealing with their USA team out of Denver to make your life easier when dealing with Bitmain Products or Services.  Here's their number.  (844) 248-6246

Any email ? I need a S5 daughter board. (18 pins)

Thanks

support@bitmain.zendesk.com

found it here: https://fanbitcoin.com/index.php?topic=671189.7680

[dmwardjr]

When I set up my 240 volt dedicated line, I plugged a 120 volt fan into it just to check if power was there. Well, the fan worked.... on super speed. If I had a hair piece, I would have lost it. Needless to say, I unplugged it quickly.

LOL   

Thanks for sharing

[altcointalk14]

So, is the only way we know our order shipped is when the truck pulls in or an email from FedEx/DHL/UPS?

[padrino]

So, is the only way we know our order shipped is when the truck pulls in or an email from FedEx/DHL/UPS?

My tracking was posted the day the order shipped, Friday... Received today..

[MyRig]

Tracking Number should be emailed to you from the automated system when the factory ships your Antminer.

if you purchased the PSU and the miner at the same time, your PSU may have been shipped ahead and the order may be marked as "shipped", however, when the S7 ships, the system will update and add another tracking number belongs to your S7.

Some had the tracking numbers updated in the system, but the automated email didn't make it to the inbox.

and....

Regarding the Internet Connection to your mining farm or Antminer S5, S5+ and S7, please make sure you do not loose internet connection! (2nd ISP will help you avoid that problem)

For S7, new firmware is published at http://www.bitmaintech.com  Please select the correct frequency version you originally received.  If you received 575mhz version, please use the same version.

So, is the only way we know our order shipped is when the truck pulls in or an email from FedEx/DHL/UPS?

[dmwardjr]

Thanks for the update, BITMAIN WARRANTY.

[BITMAIN_YHQIN]

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.

http://i59.tinypic.com/140vlu8.png

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 

What was your clock out of the box on B2?

[thedreamer]

Regarding the Internet Connection to your mining farm or Antminer S5, S5+ and S7, please make sure you do not loose internet connection! (2nd ISP will help you avoid that problem)
PS?

You guys still have not fix that issue??

[edonkey]

Regarding the Internet Connection to your mining farm or Antminer S5, S5+ and S7, please make sure you do not loose internet connection! (2nd ISP will help you avoid that problem)

For S7, new firmware is published at http://www.bitmaintech.com  Please select the correct frequency version you originally received.  If you received 575mhz version, please use the same version.

Thanks for your post. But I'm still not completely clear on this issue.

Can you verify that the new S7 firmware fixes the problem where losing internet connectivity can cause damage to the miner?

Many of us are not in a position to have a second ISP. We have no control over whether or not our Internet connection will be reliable.

It's important to know for sure that this problem is corrected.

Thank you in advance for clear communication on this issue.

[philipma1957]

I lost my net today and did not fry my s-7 so why did I work after five hours on bring offline.

I did not do different firmware.

[wolfen]

Thanks for the update, BITMAIN WARRANTY.

Any workaround with the manual fan setting?
I'll be getting two Wednesday I believe. Have to configure at home.
Don't like the full speed running miner fan to just kick down when you hit "apply" on the configuration page.
Has to be a bunch of heat just percolating in there when the fan kicks down.
Maybe high ambient temp would cause too much heat.
I think they are trying to get ahead of things, heat/wattage, etc.

[grn]

Thanks for the update, BITMAIN WARRANTY.

Any workaround with the manual fan setting?
I'll be getting two Wednesday I believe. Have to configure at home.
Don't like the full speed running miner fan to just kick down when you hit "apply" on the configuration page.
Has to be a bunch of heat just percolating in there when the fan kicks down.

Maybe try setting fan to manual at 100 or 99

[mindtrip]

I upgraded my miner to latest firmware now it will not hash and network diagnostic ping test fails any advise BITMAIN?

[tl121]

Just tested loss of internet with my batch 1 S7 and my batch 3 S7. I run with a proxy to combine all my miners to a single network connection.  This runs on a local machine.  I left my LAN connection from the two S7's to this machine.  Then I disconnected by DSL link. I continued to monitor the S7's with their web interface. 

For the first 10 minutes, the proxy continued to fool the miners that all was well.  After about ten minutes the S7's started beeping.  Checking their status, both showed the connection to the proxy server as dead.  The 5 second hash rate dropped rapidly.  Both S7's have their fans set on manual speed at 40%.  I left things this way for another five minutes, observing that the fans continued to spin at their normal speed.  The chips cooled down.

After another 10 minutes, I reconnected my DSL service and established pool connectivity.  Within about a minute, both S7's were back to normal, showing a connection to the local proxy and the 5 second hash rate building back up.

If there is an overheating safety problem with the S7's either:

1. It does not affect my two units
2. It is intermittent and may hit my two units some time in the future if there is a network outage
3. I may have bypassed the problem by using the fixed fan setting.

I am using the firmware originally supplied with the two units. 1.5.3.0, file date September 15, 2015.