Bitcoin Forum
June 16, 2024, 06:35:00 AM *
News: Latest Bitcoin Core release: 27.0 [Torrent]
 
  Home Help Search Login Register More  
  Show Posts
Pages: « 1 ... 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 [80] 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 ... 141 »
1581  Economy / Speculation / Re: Analysis never ends on: October 30, 2015, 04:24:24 AM
Just thought the thread might find this news interesting [With Charts].  It addresses what may appear to be overbought that instead may be an exit from Chinese Yuan to protect wealth [Hedging]:  

http://www.zerohedge.com/news/2015-10-27/china-margin-debt-hits-8-week-high-japan-pumpsndumps-kyle-bass-fears-looming-em-bank  [You will love these charts for comparison]

http://www.zerohedge.com/news/2015-10-25/bitcoin-bullion-soar-chinas-creeping-capital-controls-loom

http://cointelegraph.com/news/115462/chinese-policy-makers-are-starting-to-study-and-rediscover-the-bitcoin-industry-huobi?ref=8

The very FACT that LTC and BTC are both going up is showing the fear of these capital controls.  China owns approximately 80% of all bitcoin trading volume.  If they are transferring their funds to a place like BTC and LTC because of looming capital controls, this market is FAR from over bought.  It's beginning to look like a panic buy.  If you also add FOMO on top of it....   WOW.

EDIT:  I believe BTC will come back down after the Yuan has been devalued once again.  Many Chinese are hedging [so to speak] at the moment.  How much does it comes down?  Who knows?  First we have to wait to see how high they take it up.  All other exchanges follow the Chinese.  The real question is how many Chinese are hip to bitcoin?  The more the merrier.  
1582  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 29, 2015, 11:53:49 PM

they did from an absolute bottom of $320 to $340, I believe, but could be wrong (other # are from my orders, but this is from memory).

You are correct, in that it went "up" from approximately $320 to $340 and stayed at $340 I believe for the remainder of it's time.  All prices were in USD.  It was at $320 but for a short time.
1583  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 29, 2015, 10:28:42 PM
Did Bitmain ever release a new batch at a higher price?

I think this is the first time (except for the S1) where the price has advanced since the introduction of the miner.

The S5 actually went up and down several times with the price of bitcoin going up and down.
1584  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 29, 2015, 05:17:42 PM
edit: Am I the only person that has noticed this?
This dude's living depends on mining and there is only one hardware provider on the market so he is eager to stick his tongue in BMT's ass as deep as he could as long as they are ready to sell him equipment.
Put him on ignore, anyway there is no useful posts from him.

My "living" does not depend on bitcoin mining.  Am I wanting to use it to get ahead if possible?  Yes.

My wife is an accountant for an oil and gas company with a 6 figure salary and I have my own business training telephone technicians.  I have more training lined up the first quarter of 2016 with CenturyLink.  I probably could have more business if I were to get out looking for it.  I've been educating myself on other topics lately instead of making calls to gain more business.  I used to be on the road training telephone technicians 45 to 49 weeks every year.  However, I'm quite content lately just being home with my 4 year old son instead of on the road away from my family all the time the way I used to be.  Is there a problem with me trying to workout a way to spend more time with my family?

You got your little "tongue in ass" poke in as well.  So be it.  I don't understand why you ,and others like you, get their freak on with hate speech towards others conducting business with someone else that has nothing to do with you?  I could think of a number of reasons why.  However, I'm not going to waste any more of my valuable time with the likes of you.  You might want to check yourself next time before making your pokes of hate.  Invest your time doing something positive instead of something negative.  You might begin to have a more positive outlook on life and yourself as well.



1585  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 29, 2015, 07:17:29 AM
I hope someday jumps off a serious company, which has for its product at least 1 year warranty, that the material they use to build miner will be made of a material good, good customer service, to assist RMA, which steal their customers, so as to wipe off the market bitmain.servizio poor, high prices miner, high shipping prices, poor material, customer service is slow insodisfacente, material guarantee 90 days (too short).
in short, I am now aware of the criticisms of many people who lick the ass bitmain, but I do not care that much, this is my thought on bitmain.
especially the service charge, if a user pays in bitcoin, bitmain has a duty to save the end user on the shipping and customs charges Angry Angry

Spoken like a TRUE round brown who has power cost of 38 cents per kWH and a government who taxes out the ass for an S7.  You're just jealous of everyone else buying hardware from BTM and trying to mess it up for everyone else out of pure jealousy.  

Sure, you can TRY to screw it up for everyone else with your crying and bitching cause you cannot afford to mine with your high power costs and taxes.  If you want to bitch about being priced out of it, you're bitching in the wrong direction.  You need to bitch at your power company and your government for pricing you out of the playing field instead of licking their round brown.

I don't know of any manufacturer who ever gave a 1 year warranty.  Hell, back in the day, your setup was fortunate to last a year without the difficulty forcing you to upgrade.

There are plenty on here who support BTM simply by the very fact they have purchased their rigs and continue to purchase.  You are basically implying that everyone here who buys a rig from bitmain is licking their round brown.  You're just a little squirrel in the world trying to get a nut off of messing it up for everyone else out of jealousy.

Just letting you know... It's not working here, squirrel.

You read my post and THOUGHT you found an opportunity to take a poke at BITMAIN to TRY to tear them down while also TRYING to tear down a business relationship many of us have with BITMAIN by continuing to buy their equipment.  Yet the only thing you accomplished by your crying and bitching about BMT is revealing your true self.  If you want to take a poke at someone, why not take a poke at your tyrannical government who is taxing you out the game?

You also said, "...bitmain has a duty to save the end user on the shipping and customs charges."  Spoken like a true progressive.  You have gotten so used to a government taking care of your ass that you now want someone else to take care of you.  Having a government take care of you can get expensive as hell, can't it?  Those type of policies are what's bankrupting the world and why so many are beginning to flock to gold, silver and bitcoin.

If you want free shipping, BTM or anyone else can simply include the shipping in the price and say "free shipping."  The real issue is your progressive government making you pay $366 in taxes and customs; as well as your power company charging you $0.38 cents per kWH because their government regulates the hell out of them and passes the cost down to you.  Go bitch at them instead of BTM.


Below is an example of why you should point your bitching towards your power company:

I made calculations, $ 1,658 + $ 54 shipping + $ 366 taxes customs Italy
Total = $ 2,078
 Shocked Shocked Shocked Shocked Shocked


I'm talking about only one miner S7

That $366 tax in customs is possibly a deal breaker.  I'm curious, how much is your power costs converted into U.S. Dollars (USD)?


Italian electricity and 38 cents kW


This next one is why you should point your bitching towards your government:

I made calculations, $ 1,658 + $ 54 shipping + $ 366 taxes customs Italy
Total = $ 2,078
 Shocked Shocked Shocked Shocked Shocked


I'm talking about only one miner S7
1586  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 29, 2015, 05:31:30 AM
Do you review BMT products or have any association with BMT? I have lurked here for a long time and have noticed a shill like stance you take with regards to BMT in general on any response regarding BMT "the company". I know that BMT is the only real game in town at this point, but some of your perspectives and comments almost have a "customer service" feel to them.

There are examples of s7's catching on fire, late shipping, poor communication and generally a really bad experience for a HUGE!!! (see what I did there) portion of the community with BMT, but you always seem to find a positive spin.

I have nine s7's online and have been involved in bitcoin since 2010, granted I am a lurker. So I apologize if my query comes across as jaded, but no one I know IRL would defend BMT in this manner that wasn't being paid by them.

Ufo

edit: Am I the only person that has noticed this?

Hi UfoRia,

LOL...

No, I'm not a reviewer of BMT products.  I'm not a reviewer of any products except for two manufacturers of meters designed for technicians in the telephone industry.  I'm just a simple business man from Alabama.  ROLL TIDE.

Yes, BMT has messed up.  However, does beating them over the head actually "solve" anything?  Seriously... Does it?  BMT, messed up and trust me... they KNOW they messed up; period.  But all of this disrespectful tone does not build business relationships.  It only breaks them down.  It only potentially damages future business.  If some wish to write them off, discontinue mining and speak ill of them knowing they will never do business with them again, so be it.  Does that type of behavior potentially harm possible amends in a business relationship with BMT for the rest of us in the future?  YES, IT DOES!  And I don't appreciate it!

I'm a business man.  I own my own business training telephone technicians.  If a manufacturer of a meter messed up with the shipment of a meter to a customer of mine and the meter was full of software bugs [This actually happened twice with two different companies]; the meters were also shipped late on top of that; this disappointed me.  This didn't wear well on my reputation with the telephone companies when I told them what meter I would buy personally.  Instead of cursing out the manufacturer and potentially end the relationship we had FOR BOTH OF US TO MAKE MONEY, I simply told them the software bugs that needed to be fixed and they gave the telephone companies a discount off of the order as well as a discount off a future order of the same quantity with no expiration date.

I'm all about making money and building business relationships.  That's just me.  Would you want someone to curse you out and try to make a public mockery of your name if you had messed up?  OR  Would you want them to be patient, respectful and potentially help you get out of the mess up you created.  Basically, try to be the better person in all dealings with people and/or with businesses.  You gain more respect and it encourages partnerships that can last.  There has been too much tearing down lately.  I want to see some lifting up.

If I'm to be ridiculed or disrespected because of my "opinion," so be it.  I'm not saying you are being this way because you are not.  I just know how I do business and handle business cause I've learned from doing business since 1997.  If someone wants to say, "you're just kissing ass."  So be it, that's their opinion.  However, I think it's dishonorable and shameful if someone were to say that.  

I look at this as a business and I'm all about making money.  It's that simple.  I just don't think it's profitable to either party for one to ridicule the other publicly.  It's that simple.  If there are complaints and one wants to display the complaint to inform others, I think they can do so without the public humiliation.  It just doesn't solve anything.  It does not build business relationships and it certainly does not profit either party.

Again, all of this was my opinion.  Anyone can take it how they like.  People can write me off if they don't like my opinion.  [It's a shame if they do.]  Why?  Because it discourages reasoning among one another in an effort to build relationships that benefit both parties.

Cheers,

David
1587  Bitcoin / Pools / Re: [9000 TH] Slush's Pool (mining.bitcoin.cz); TX FEES + VarDiff on: October 29, 2015, 04:27:56 AM
This may be useful

http://data.bitcoinity.org/bitcoin/hashrate/6m?c=m&r=week&t=a


On the BTC.Com Pool Distribution tab...

Why is the slush rate so low?? I mean... it's been a few months slush is over  30pH+. Anyone have other reliable source of the hash rate distribution ? It can't be right...

Where are those numbers coming from?

It comes from solved blocks, which Slush is failing at pretty hard right now.

Thanks for sharing!
1588  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 29, 2015, 04:14:57 AM
Hello.

I'm a newbie here. I have been trying to learn a lot on the bitcoin mining world. I wanted to buy miner since GPU times, but never did. I have been following bitmaintech's products but never bought one until S7 B2.

Yes, I finally bought an S7 B2 from BMT and I wanted to add my two cents by saying it was shipped today.

My order was made on Oct 15th with a confirmed payment just less than an hour after my order was placed. And I received an email today from them (say 10h ago) saying my order was shipped with tracking number. I logged in on my BMT account and my order was updated with tracking # and I can check tracking # on dhl website. Everything seems to be right so far. As a note, they shipped two packages as they updated my shipping info with two tracking numbers. I ordered an S7 B2 and one 1600W PSU from them. That's all I ordered and this is my very first time buying bitcoin miners.

Main outlet voltage here is 120V but I can get 240V from the two 120V phases. I think I can do it with an electrician and also thanks to all the help a lot of you have been providing on this thread. Thank you so much!!!

I will be reading dogie guides to make the proper setup to the miner but if I have any question I'll let you know as this is my first time doing this.

Thank you again.

It's good to hear you had a pleasant experience with BMT.  I ordered Batch #1 on September 3, 2015 and received it on October 16, 2015.  It was 4 days past the deadline.  You just happen to order at a good time. 

As for my order; yes, it was late.  Do I feel it was a scam?  HELL NO!!!  Do I feel like I was treated fairly?  Yes!  Do I feel like the compensation to come is fair?  Yes!  Others with less power cost or no power cost may not agree.  So, BMT did an "average" for compensation.  Was it a scam?  HELL NO!!! 

Have some received equipment with heatsinks out of position and actually causing some rigs to burn up?  Yes.  Did they get satisfactory response to resolve the issue?  I would say more than likely, YES!!!  Is this a perfect world with perfect people and perfect government with perfect corporations?  No!  Do some governments and corporations take advantage of people?  Yes.  Do I think BMT took advantage of those it sold S7's to?  HELL NO!!!

Do I think BMT learned from the issues that developed during this episode with the S7's?  Yes.  Will they learn from this episode?  Yes.  Will something like this happen again?  Probably not.  Will something else come up in the future with other models yet to come on the market?  Possibly... It's not a perfect world.  Will they offer a means of correcting a potential issue in the future?  I would say, YES!!!

BMT has been a good company and just as loyal to the home/small farm/large farm miner than any other manufacturer out there.  I believe you were in good hands when you placed your order with them.  I'm happy this forum has been informative to you and I want to welcome you to the fold.

Happy mining, reinaldo, and may the blocks be with you!

David

1589  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 29, 2015, 12:31:45 AM
OK, another stupid question from someone who is getting his S7 delivered tomorrow.  Since I will be using separate power supplies for the hash boards, is there any concern about overheating while turning them on one at a time with the control board psu being the last one to turn on?

I'm just curious since the worry about 'internet connection' issues and fans not cooling, when they're initially powered up is that any concern?

not a concern re overheating initially as it would take it a minute or so to situate itself on your network and then hashing will build up slowly (don't expect it to jump to to 4.86 in few seconds). Wait at least 1 hr before reaching any conclusion where your miner is operating as far as speed is concerned and if high errors is seen, try soft reboot in gui (I believe that it is in system pane).


I think that you are precisely correct when you say, "turning them on one at a time with the control board psu being the last one to turn on."  I have quite a few S7s now and have several powered by 3 power supplies and followed the power on procedure that you noted without any problems.



How many watt PSU per board do you use - all 3 the same or more on the controller board?

Each blade [Or board] is approximately 377 watts per board at 600 MHz clocking.  I could be wrong but I believe this is correct.  The Controller is approximately 40 watts.

Don't forget the fans at 15 watts to 25 watts each {depending on the RPM's}.  This is based on 93% efficiency at the wall.
1590  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 28, 2015, 03:52:54 PM
dmwardjr-------I have to say that you are a very good person!!!!   You have helped me in the past and are continuing to help other to the best of your ability.  Just from me, Thank You!

Thank you,

My apologies for the delay.  I've been sleeping.  I was up until 5:25am this morning.

I do my best.  I still have a lot to learn with mining, nodes, the blockchain, code, networking, etc...  There are a lot of fine gentlemen and ladies on here with loads of experience and knowledge to learn from.  I feel privileged to be in the company of most all of them on here.

Have a good day, AriesIV10.

David
1591  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 28, 2015, 03:47:47 PM
LOL,  I never said I don't ever cook or that I take cold showers - to the contrary I just made some spinach egg scramble as well as some sausages for breakfast (While heating my coffee in Microwave) and am about to take a nice HOT shower.
Clothes, yes - I said I don't use dryer - I air dry them.  A/C - I simply don't use either.  In fact it's disconnected from the main and have 4 x 20 amp 120 circuits installed in its place for miners.  The Fridge operates on a 120v circuit.  I do next to zero gaming.  My son does the gaming, but I do have a dual xeon rendering rig that gets kicked on from time to time that draws 1000 watts when rendering, or mining.

Thanks for clearing it up.  The confusion came when you said you were using 32,000 Watts of rigs and everything else in the house worked fine without tripping the breaker.  The very fact you have the AC disconnected will have everything else work fine with the rigs running.  The AC is the biggest burner of power after the rigs.
1592  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 28, 2015, 09:11:12 AM
Here comes their answer:

"Yes, all issues should be solved! each batch releasing developed."



Thanks Kogan.  Much appreciated!

Time to sleep.

May the blocks be with you!
1593  Bitcoin / Pools / Re: [9000 TH] Slush's Pool (mining.bitcoin.cz); TX FEES + VarDiff on: October 28, 2015, 08:47:40 AM
Variance is something else.  We now have 3 blocks in the last 3 hours.
1594  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 28, 2015, 08:44:19 AM
Uh ok great. Sometimes we all need to be told the same thing several times to believe Smiley

Thanks.

You're welcome.
1595  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 28, 2015, 08:38:13 AM
Allright thanks.

I'll also see what will bitmain answer me for that question and will post here.

They say new batch will be available for sale next week and i asked if the problem will be still there just in case.

I've read half of this forum and for a newcomer i could not find anything exact and promising on both of these issues : 1. when will new batch be available for sale? 2. fan thing.

So maybe their answer will be more promising Smiley

It appears to be fixed according to the link I provided.  If you are still queasy about it, you can take your fans off "auto" and set them to 90% or 100% manually.  We already know if the internet is down with the fan set manually, it will continue at the manual setting whether the internet is working or not AND thereby keep the rig from burning up.
1596  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 28, 2015, 08:29:49 AM
For those wondering if the firmware fixes the issue with not having internet access potentially frying a s7, I can confirm it. My father-in-law was watching my kids today and was having issues with the wireless on one of my Roku boxes. He arbitrarily started setting static ip addresses and knocked two of my seven s7's offline about five hours ago. Both had the new firmware luckily, but one of my seven did not. I killed the port on the juniper switch with the one that had the old firmware and the fan crawled to an idle, so I can confirm beyond a reasonable doubt that the new firmware keeps the fan at a very high idle if there is no internet connection.

I asked him what time he messed with the addresses on the Roku and it was five hours ago. On both of the ones he knocked off before finding a non-reserved IP they were both beeping very loudly, but the fans were spinning at a high rpm. During my test on the one with the old firmware the fan was barely spinning, so for the father-in-law variable the last one is updated now. Hard resetting them both allowed them to recover, luckily I am anal and log dhcp assignment and errors to syslog. It only took me a little while to figure out that he picked addresses that were in my reserved dhcp exclusion range.....

Neither auto-reconnected, which I find to be an interesting design flaw or bug.

Sigh!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!


Ufo
1597  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 28, 2015, 08:28:47 AM
Do we have a fixed working answer for the internet down @ fan problem yet?

Just a moment and I will add a link...
1598  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 28, 2015, 07:45:42 AM
Hello to you all.
Received my ANT7 Batch 1 yesterday.
Also received the PSU from Bitmain.

Yesterday i pluged everything, configured and "voilá"... it was mining...

Everything OK by 2 hours... after that the unit started to beep.. i needed to poert it off.
Connected again... and once again it was mining.

After 2 hours the some problem... the mining decrese to almost 0, the unit started gain to beeb.
Power off and power down again
The unit beeps again and again... works for 3 to 4 minuts until it stops mining

From 21PM yesterday the unit is producing ZERO... its beeping almost shure (i'm in home, and the unit in in my office).
The ANT7 is connected to a swhitch and then the switch is connected to a router.

Im a newbie, and i thought this was power on and let go... i see its more complicated for a 2500€ machine. Angry
Is there any troubleshotting guide?
Help is needed.

Dogie, would be a good one to talk to at the following thread specifically for the S7:  https://bitcointalk.org/index.php?topic=1194785.0

There are many others in THIS thread who are quite capable of helping as well.  The chances of many of us being awake at this hour is not very good.  It may be that I can help...

You can start by posting a screenshot of the "miner status" in this thread and the other thread I gave you a link to so you can see who answers the quickest.  We also need the manufacturer of your Power Supply Unit (PSU), model, watts, etc...


If you don't know how to post a screenshot on here, follow directions below:

Go to imgur.com

Click "upload images" at the top of the page.

Drag your image(s) to the page for upload.

Once you have dragged all the images you want uploaded to the window, Click "Start Upload."

The image I have posted below will provide instructions in text bubbles for which "link" to copy and paste in the forum.  So, look at the image below for further instructions:

{If you drag multiple images into the window for upload, it will only provide a link to the image and no option to post the images themselves in the forum.  Either way is fine though}

1599  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 28, 2015, 07:31:51 AM
By the way, I'm normally accustomed to saying 120 Volts and 240 Volts instead of 110 Volts and 220 Volts like others may say.  One reason why it can be different depends on the internal resistance of the meter one is using when measuring voltage.  

The internal resistance of any meter [When measuring voltage] is HIGH.  Why?  We do NOT want current to flow IF we wish to see the Source Voltage (potential output of our power supply).  If the internal resistance of a volt meter was low, current would be flowing through the meter and it would be impossible to see Source Voltage (120V or 240V) .  We would begin to see what is called, "Voltage Drop."  

That's why the internal resistance of a volt meter MUST be high.  Why?  To keep current from flowing.  Why?  So, we can always be able to see the potential output of our power supply, known as "Source Voltage" (120V or 240V).  If we see SOME voltage (It's not zero; like 40 Volts for example) BUT, it's not source voltage (120 Volt or 240 Volt), it more than likely is voltage drop.  Which means current is flowing.

Some meters have an internal resistance of 1,000,000 Ohms when measuring voltage and would give us a 110 Volts or 220 Volts AC reading.  While other digital meters may have an internal resistance of 10,000,000 Ohms [When measuring voltage] and give a reading of 120 volts or 240 Volts AC.  I have digital and analog meters with both 1Meg. Ohms and 10 Meg. Ohms internal resistance when measuring voltage.

Cheers,

I agree that having a 1,000,000 Ohms or a 10,000,000 Ohms internal resistance meter can have an significant effect on measurement, particularly on lower voltages with higher impedance circuits. However in the context of measuring the Mains voltage with an impedance measured in ohms whether you are using a 1Meg meter taking 0.1mA or a 10Meg meter taking 0.01mA is going to make no difference to the reading.

Rich

Totally agree, Rich.  I did make some edits to what I said while you were quoting me to try to simplify things for those who may be interested in meters.  Which you can look back to see:

But yes, you are certainly correct about the internal resistance of a volt meter can have a significant effect on measurements with circuits that have lower source voltage and higher impedance.

David

EDIT:  And you are correct about 0.1mA through 1Mega Ohms resistance and 0.01mA through 10Mega Ohms resistance.  So, yes, there is some current flowing through the meter when measuring voltage.  However, the amount is so small, it's peanuts.  I prefer to avoid confusion in the beginning when teaching someone new to meters and just tell them, "no current is flowing through the meter that's worth talking about."  I think it's important to keep it as simple as possible in the beginning with a newbie learning how a multi-meter works on the inside when making different electrical measurements for the first time.  I keep it simple in the beginning when covering a multi-meter regarding most all measurements; such as volts, ohms in resistance, ohms in impedance, capacitance, inductance, measuring decibels, frequencies, etc...

I like for them to envision in their mind [When measuring voltage] the internal resistance of the meter is sooooooo high, they are simply using whatever they connect their meter leads onto, to extend their meter leads to the source; so they can see source voltage.  But if current is flowing anywhere in the circuit, their meter leads cannot extend through current to the source.  Which means their meter leads will stop right at the point current is flowing and indicate voltage drop instead of source voltage.  The voltage drop they are seeing is located at the point where current is leaking (flowing); and the amount of voltage drop they are seeing depends upon the amount of resistance the current is leaking through.
1600  Bitcoin / Hardware / Re: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH on: October 28, 2015, 05:49:22 AM


OK, believe what you will.  I do know several "licensed" electricians and had one confirm with me today, after these exchanges, that it is Per Phase on the Main - not total.
So each phase can be loaded with 80% load and the main will not trip as they are out of phase and not an addition of current.

Here is a list of miners and wattage that I am currently using - all at 120V.  They alone are exceeding 200A in power usage -

13 x s7's = 15730 WATTS
8 x s5's = 4720 WATTS
1 x S4 = 1400 WATTS
3 x A2 @ 88 = 2250 WATTS
4 x A2 @ 110 = 4000 WATTS

TOTAL WATTS = 28100 @ 120v = 234A

The only 240V circuits being used are 1) Stove - 2) Water Heater.
Even with the miner loads, I'm still able to use all sorts of other electricity - IE this computer - a couple 1000 Watt gaming machines, a 200 Watt Laser Cutter, air compressors, electric drills, radios, garbage disposal, hair dryers (when gf needs),  and charge my Chevy Volt.

You are saying this is impossible, unless defective - seems to be working.


Don't forget.  You know we have 200 amps on each pole but how many volts is on each pole?  The answer:  120 Volts


Yes, exactly.  So where do you think the 240V comes from?  Combining the 120V across the 2 poles.  Essentially when you use a 240V breaker and have a 5A load on it, you are pulling 5A across both pole/legs at 120V.
So in order to achieve 200 amps at 240V you'd be pulling 200amps across both legs of 120V.  This alone, seems to tell me that yes you can use 200A of 120V on each leg.  

Yes Stove/Oven, Water Heater, and Dryer (which I don't use) all utilize both legs with 2 pole breaker.  Who needs a dryer with this many miners?  Just put up some clothes racks in the living room when its time to dry.



Then do the math...

200 amps x 120 volts for one leg (pole) = 24,000 watts.

200 amps x 120 volts for the other leg (pole) = 24,000 watts.

That is a total of 48,000 watts.

You are using 32,000 watts worth of rigs, "supposedly" at 120 Volts.

That leaves 18,000 watts remaining.

30 amp x 240 for your dryer = 7,200 watts [Actually uses about 22 amps x 240 Volts while running on normal dry = 5,280 watts]
50 amp x 240 for your A/C = 12,000 watts [Your A/C would actually use about 42 amps for start up power then throttle down to about 22 amps x 240 volts = 5,280 watts]
30 amp x 240 for your stove top/oven [Will probably use about 15 amps on average when it is on = 3,600 watts]

Those 3 combined [While running] = 14,160 watts plus the 32,000 watts of rigs you are "supposedly" running = 46,160 watts.  This leaves 1,840 watts remaining and we haven't even gotten to the fridge, televisions, lights, stereo, gaming equipment you discussed, the compressor you discussed.  You said all of this worked fine without tripping the Main Breaker.  Yet, I find that hard to believe.

How about providing photos of your set up and photos of the Main Service Panel?  Photos of all the outlets the rigs are connected to?  IF you don't know how to post photos, I'll explain it to you.

I've racked my brain trying to figure out how you would "balance" 32,000 watts at 120 Volts for a total of 266 amps with 134 amps remaining and still power everything else I mentioned.

Not only that, you said the MAIN breaker appears to be 180 amps in an earlier post instead of 200 amps.  That's even worse...

Did you not see the drawing I posted earlier depicting two 120 volt poles with Phase - A and Phase - B?

I see now you say you don't ever cook, you don't use the dryer and you always take cold showers.  [I'm commenting on your post while I read it.]  I imagine you turn the A/C on during the summer.  Then we have the fridge, the compressor you mentioned, the 1,000 watt gaming you do, the lights, the television(s), your exhaust fan for heat; any other box fans you may use for cooling, your dish washer, etc...

The only way possible you "might" be able to do it is by NEVER cooking and NEVER drying clothes while the AC is running.  You gave the impression that you can do all of these things I mentioned earlier just fine and you are just now saying you don't cook, and you don't dry clothes.  When you say you worked hours on paper to figure out how to "balance" so EVERYTHING would work fine, you seemed to have left out never cooking and never drying clothes.

It's nothing to be embarrassed about for sure.  During the summer, I would turn off a couple of rigs while the A/C was running so I could run the dryer or cook.  I imagine you would be grateful for the winter so the A/C can be shut off to allow you to take hot showers and dry clothes or cook if you want to.  

I would cut off 4 rigs if I wanted to cook and use the dish washer.  I would have to cut off 7 rigs if I wanted to cook on 3 eyes of the stove, wash dishes and run the dryer on low.  Then I would turn all the rigs I had shut off back on when I was finished drying clothes, cooking and washing dishes.

When this discussion first started, you said, "Everything worked fine without tripping the main breaker."  That was a bit misleading after finding out [During the summer with the A/C running] you never cooked nor dried clothes in the dryer and appear to always take cold showers as well because you cut off an electric water heater as well during the summer when the A/C is running.

How about some photos?  

You can post the photos here [At "Miner Photo Porn"] to avoid cluttering up this particular thread:  https://bitcointalk.org/index.php?topic=766998.940

By the way, I'm normally accustomed to saying 120 Volts and 240 Volts instead of 110 Volts and 220 Volts like others may say.  One reason why it can be different depends on the internal resistance of the meter one is using when measuring voltage.  The meter I prefer to use when measuring AC voltage in the Main Panel, receptacles or house wiring has an internal resistance of 10 million ohms.

The internal resistance of any meter [When measuring voltage] is HIGH [Some higher than others].  Why should the internal resistance of a volt meter be high?  We do NOT want current to flow.  Why?  So we can see the Source Voltage (potential output of our power supply).  If the internal resistance of a volt meter was low, a substantial amount of current would flow through the meter and it would be impossible to see Source Voltage (120V or 240V) .  If current was flowing through the meter, we would see what is called, "Voltage Drop" instead of Source Voltage.  

That's why the internal resistance of a volt meter MUST be high.  Why?  To keep a substantial amount of current from flowing through the meter.  Why?  So our meter leads will extend to the Source.  Why?  So, we can see the potential output of our power supply, known as "Source Voltage" (120V or 240V).  

If we see SOME voltage [Meaning it's not zero volts, but 40 Volts for example] However, that 40 volts is not source voltage (120 Volt or 240 Volt), the 40 volts we are seeing is more than likely voltage drop.  Which means current is flowing.  More than likely a hot wire (conductor) has access to ground [When working on AC Volts]  OR the negative and positive side of the battery has contact somehow [When working on DC Volts].  [It is possible to have a partial open in the cable or wire extremely high in resistance that can affect your voltage reading so much to make you think you are seeing voltage drop to indicate current is flowing.  However, an open of any type does not create leakage.  Meaning, an open does not get current to flow.]  I will say it is highly unlikely a partial open has that high of resistance to knock your voltage down to a point that fools you into believing you are seeing voltage drop.  It would normally be clean open by the time a technician arrives.  Which would result in no voltage seen at all; depending on the conductor that is open and the points measured with the meter leads.

 If current is ever flowing through resistance in a conductor, that conductor will drop (consume; eat) voltage.  So, if we see SOME voltage but not SOURCE voltage, it more than likely is voltage drop, which means current is flowing.  If we have concluded current is flowing because of seeing voltage drop, the type of troubles that can create this would be a short, ground or cross of some kind [Depending of whether it is AC or DC of course].

Some meters have an internal resistance of 1,000,000 Ohms [When measuring voltage] and would give us a 110 Volts or 220 Volts AC reading.  While other digital meters may have an internal resistance of 10,000,000 Ohms [When measuring voltage] and give a reading of 120 volts or 240 Volts AC.  I have digital and analog meters with both 1Meg. Ohms and 10 Meg. Ohms internal resistance when measuring AC or DC voltage.

Cheers,
Pages: « 1 ... 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 [80] 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 ... 141 »
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!