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Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 175. (Read 527809 times)

full member
Activity: 180
Merit: 100
Well, 4.825 btc lighter, I went ahead and bought batch 8 so I can finally replace my last S5 and S3.  I'm going to have to bite the bullet and buy another psu since I don't trust 2 hx850's to power this one like I did my batch 3.  But oh well.  I can get a new RM750 for $99 so it's not that much.

I just hope this one performs as well as my batch 3.  That thing is great.
Each hash board pulls 400 watts so you should have at least 600w per blade using the 80% rule.
One 850w would not do on two boards.
I would do 850w+850w+750w for blades 1+2+3
I use 1000w for each of two boards. So three 1000w would cover two s7's.

Well, my batch 3 is running now on 2 HX850's.  And I haven't burned the house down yet...but since the overall draw is 1293 at the wall for this one, I think 3 is the way to go on it.

Am I missing something? You'd spend $300 for three PSUs to run the blades but you can get an EVGA G2 1600 for about $320 and it'll power the whole thing with a 10 year warranty. I don't see why you wouldn't just go that route and have "one switch to rule them all".

No, I have 2 HX850's leftover from selling my S5's and those were bought last year sometime to each handle 2 S3's.  So I only need to buy a single RM750 for $100 to handle my needs.
legendary
Activity: 1405
Merit: 1001
Are there any suggestions for replacement fans? Just in case one is broken or they are too loud?
Greetings,
me
sr. member
Activity: 359
Merit: 251
Well, 4.825 btc lighter, I went ahead and bought batch 8 so I can finally replace my last S5 and S3.  I'm going to have to bite the bullet and buy another psu since I don't trust 2 hx850's to power this one like I did my batch 3.  But oh well.  I can get a new RM750 for $99 so it's not that much.

I just hope this one performs as well as my batch 3.  That thing is great.
Each hash board pulls 400 watts so you should have at least 600w per blade using the 80% rule.
One 850w would not do on two boards.
I would do 850w+850w+750w for blades 1+2+3
I use 1000w for each of two boards. So three 1000w would cover two s7's.

Well, my batch 3 is running now on 2 HX850's.  And I haven't burned the house down yet...but since the overall draw is 1293 at the wall for this one, I think 3 is the way to go on it.

Am I missing something? You'd spend $300 for three PSUs to run the blades but you can get an EVGA G2 1600 for about $320 and it'll power the whole thing with a 10 year warranty. I don't see why you wouldn't just go that route and have "one switch to rule them all".
full member
Activity: 180
Merit: 100
Well, 4.825 btc lighter, I went ahead and bought batch 8 so I can finally replace my last S5 and S3.  I'm going to have to bite the bullet and buy another psu since I don't trust 2 hx850's to power this one like I did my batch 3.  But oh well.  I can get a new RM750 for $99 so it's not that much.

I just hope this one performs as well as my batch 3.  That thing is great.
Each hash board pulls 400 watts so you should have at least 600w per blade using the 80% rule.
One 850w would not do on two boards.
I would do 850w+850w+750w for blades 1+2+3
I use 1000w for each of two boards. So three 1000w would cover two s7's.

Well, my batch 3 is running now on 2 HX850's.  And I haven't burned the house down yet...but since the overall draw is 1293 at the wall for this one, I think 3 is the way to go on it.
hero member
Activity: 770
Merit: 523
Well, 4.825 btc lighter, I went ahead and bought batch 8 so I can finally replace my last S5 and S3.  I'm going to have to bite the bullet and buy another psu since I don't trust 2 hx850's to power this one like I did my batch 3.  But oh well.  I can get a new RM750 for $99 so it's not that much.

I just hope this one performs as well as my batch 3.  That thing is great.
Each hash board pulls 400 watts so you should have at least 600w per blade using the 80% rule.
One 850w would not do on two boards.
I would do 850w+850w+750w for blades 1+2+3
I use 1000w for each of two boards. So three 1000w would cover two s7's.
full member
Activity: 180
Merit: 100
Well, 4.825 btc lighter, I went ahead and bought batch 8 so I can finally replace my last S5 and S3.  I'm going to have to bite the bullet and buy another psu since I don't trust 2 hx850's to power this one like I did my batch 3.  But oh well.  I can get a new RM750 for $99 so it's not that much.

I just hope this one performs as well as my batch 3.  That thing is great.
legendary
Activity: 1260
Merit: 1009
Looks like selling miners on ebay is a disaster.
Have a buyer that issued a chargeback claim to their credit card for a purchase 60 days ago.
Ebay doesn't know about it.
Paypal knows about it but the buyer only filed a complaint with their credit card so paypal will only accept
whatever the credit card decides to do. They have the credit card info but will not share it with me.
Told me I will probably have to file a police report for theft. Unbelievable.

Buyer has 4 miners AND the cash. Looks like I will be the one to eat it.

I don't know how anyone can do business like this. Blatant fraud goes completely unchecked.

I have a lot of experience selling miners on eBay.  It comes down to this:

If in US; don't ship outside the continental US.

Don't sell to anyone with bad or low feedback.

Anticipate every possible failure a new miner might have and explain it in your description.

Take actual pictures of each miner including serial numbers, and miner gui screenshots.

List each miner as rated at what GH it typically mines at; not the retail rating.

Clearly state you do not accept returns.

Clearly state your shipping and handling time; and always ship within your handling time.

Include lan cable and jumper switch if possible.

Clearly state what type of PSU is needed, and make recommendations.

MOST OF ALL; know that the best time to sell is also the most likely time you will get screwed.  Choose a price that gives you a small profit or is an even trade; and reasonable miners will buy from you.  Choose a high price and you will only attract scammers and delusional noobs.  If you want to sell miners as a business; make your own website and don't accept PayPal.

Barring the S5+, the S7 is probably the worst miner to sell on eBay; due to its 10x pcie, specific power on sequence (with multiple psu's), need to be set to a manual fan speed, voltage sensitivity, lack of a front fan grill, propensity of individual heatsinks to fall off in shipment, and most importantly high individual unit value.  Play with fire if you want.

legendary
Activity: 1260
Merit: 1006
Mine for a Bit
Anyone OCed his Batch 7 to 650 Mhz ? is it performing well ??

Playing around with different clock freqs. Here's a snapshot from my current test.


That Temp and HW are way too high.  I would be doing a reset and an increase on the fan speed.  Thanks for sharing this test with us.  There is hope for the B7!!!
legendary
Activity: 1120
Merit: 1001
wow, 700 frequency.ain't that too high ?it only gives you extra 200 GH/s and a lot of HW errors 0.1 %.
Can you try with 650 Mhz instead ? I belive you will get better results
Your temperature is also too high, it exceeds 70c, you are close to danger zone.

P.S. You may want to higher fan speed if you are on manual
hero member
Activity: 818
Merit: 508
Anyone OCed his Batch 7 to 650 Mhz ? is it performing well ??

Playing around with different clock freqs. Here's a snapshot from my current test.


What's your fan speed?
legendary
Activity: 1946
Merit: 1006
Bitcoin / Crypto mining Hardware.
Anyone OCed his Batch 7 to 650 Mhz ? is it performing well ??

Playing around with different clock freqs. Here's a snapshot from my current test.

newbie
Activity: 23
Merit: 0
Any guesses when the next batch after 8 is out for s7? looking to buy one in next month but batch 8 really isn't my favorite so far for spec/price wise. I'd buy one for about 1400 sure, but 1650 I feel is just a bit much
sr. member
Activity: 338
Merit: 251
Some of it on ebay is probably NOT an intentional scam.
Just some hopeful newbs buying a machine that they don't really know how to handle, then messing it up and running to the protective cover of ebay (apart from the obvious OP case).
NOT as described-sure, after they burn it down by using LIVE connector (see Phil's posts about this problem) to controller after misinterpreting bitmain's ESL instructions (much better than my chinese, admittedly).

Yeah but in all the cases above the buyer didn't even ship the units back! I got screwed in this way on ebay years ago. I had an account with over 200 feedback, all positive, and had it since the site started back in the late 1990s.

Once ebay over tripled their fees they went downhill quick. You used to be able to ban people with under any number of feedback from bidding on your auctions which I always did on high value items $1,000+, at least over 10-20 feedback I remember for sure. Not anymore. You also used to be able to send negative feedback for buyers, which kept them in check. Not anymore. The buyers started to send me negative feedback for the stupidest things after that, basically ruining my perfect account. I had to kiss ass and give kick backs just to get the damn feedbacks removed, much like the feedback scammers on Yelp. They really get you by the balls and it sucks.

The final straw for me was when I got a charge back for a very large ticket item, and never even got the item shipped back to me. They went and took the money straight out of my bank account one day. It overdrafted me and made it so that my bills, rent, and everything that month were screwed up because I sold the item to free up the cash for bills and rent and the end of a hard month.

I hate ebay now when I used to love it and stand by it. I used to make almost all of my purchases and sales on it religiously. Not anymore. I'll use it for a few things if I have to but only as a last resort. I mostly only buy now as I can't take the risks associated with selling on that shit site. They really ruined a good thing.
legendary
Activity: 3892
Merit: 4331
Some of it on ebay is probably NOT an intentional scam.
Just some hopeful newbs buying a machine that they don't really know how to handle, then messing it up and running to the protective cover of ebay (apart from the obvious OP case).
NOT as described-sure, after they burn it down by using LIVE connector (see Phil's posts about this problem) to controller after misinterpreting bitmain's ESL instructions (much better than my chinese, admittedly).
legendary
Activity: 1726
Merit: 1018
Looks like selling miners on ebay is a disaster.
Have a buyer that issued a chargeback claim to their credit card for a purchase 60 days ago.
Ebay doesn't know about it.
Paypal knows about it but the buyer only filed a complaint with their credit card so paypal will only accept
whatever the credit card decides to do. They have the credit card info but will not share it with me.
Told me I will probably have to file a police report for theft. Unbelievable.

Buyer has 4 miners AND the cash. Looks like I will be the one to eat it.

I don't know how anyone can do business like this. Blatant fraud goes completely unchecked.

That's scary to hear.  Did the buyer have any positive feedback?  I honestly have not had a problem selling a bunch of S3's and my S5's on ebay, but the buyers all had good positive feedback.

The buyer was a "Guest User" for one time purchase.  Wolfen, told me some of the details before.  It's crazy isn't it?  PayPal should be the one responsible.  They should make sure potential buyers are fully vetted before allowing them to make a purchase over $99 USD from a seller.  The entire episode is a crock of shiznit!

I've learned [now] I will NOT complete a sell to anyone with less than 10 feedbacks if what I'm selling is over $100.  PERIOD...

I don't care if I get negative feedback!  I'm not selling to anyone with less than 10 positive feedbacks as a buyer.

Jeez guys, do you guys realize what you're talking about?
Selling a device designed to make open uncontrollable currency , and at the same time complaining, that there should be more control and oversee?
You guys for real?

What was sold is completely irrelevant.  It was sold for fiat using fiat transacting companies.  What's the point of fiat if you have no protections?
jr. member
Activity: 43
Merit: 1
Looks like selling miners on ebay is a disaster.
Have a buyer that issued a chargeback claim to their credit card for a purchase 60 days ago.
Ebay doesn't know about it.
Paypal knows about it but the buyer only filed a complaint with their credit card so paypal will only accept
whatever the credit card decides to do. They have the credit card info but will not share it with me.
Told me I will probably have to file a police report for theft. Unbelievable.

Buyer has 4 miners AND the cash. Looks like I will be the one to eat it.

I don't know how anyone can do business like this. Blatant fraud goes completely unchecked.

That's scary to hear.  Did the buyer have any positive feedback?  I honestly have not had a problem selling a bunch of S3's and my S5's on ebay, but the buyers all had good positive feedback.

The buyer was a "Guest User" for one time purchase.  Wolfen, told me some of the details before.  It's crazy isn't it?  PayPal should be the one responsible.  They should make sure potential buyers are fully vetted before allowing them to make a purchase over $99 USD from a seller.  The entire episode is a crock of shiznit!

I've learned [now] I will NOT complete a sell to anyone with less than 10 feedbacks if what I'm selling is over $100.  PERIOD...

I don't care if I get negative feedback!  I'm not selling to anyone with less than 10 positive feedbacks as a buyer.

Jeez guys, do you guys realize what you're talking about?
Selling a device designed to make open uncontrollable currency , and at the same time complaining, that there should be more control and oversee?
You guys for real?
legendary
Activity: 2294
Merit: 1182
Now the money is free, and so the people will be
if you want to scam people into paying really high prices, like on ebay, then...well...

You realize that with an auction style listing the customer sets the price right?

yeah I meant when you search on ebay all you see is really high prices (add shipping) for s5 or s3.  its true fees are high, but i sold some stuff (not bitcoin related) and once in a while you get reduced fees, etc.  

edit: looking back at my last comment, "scam" might of been a bit harsh ด็้็้็้็้็้༼◉Д◉༽ด็้็้็้็้็้
legendary
Activity: 1274
Merit: 1000
Personal text my ass....
Kind of off topic but has Bitmains minerlink ever worked?  Is it kind of an abandoned project or what?

i tried setting it up but it doesn't seem to work. Is there any other way to manage multiple antminers efficiently ?

Switched PDU(s) and Teamviewer with an extra computer on premise is an easy way.

Go with teamviewer it woks very nicely.  If you have a iphone or android smart phone it does have apps, where you can log into computer from phone.  This is a very nice thing when on the go.

As far as minerlink I don't think it ever turned into anything.  I think they have a IP scanner up on that site.. but nothing useful as far as controlling machines.

Be careful with Teamviewer. As they do have a "free" version that will eventually change to a subscription model one day. This is entirely a speculation on my part, but usually when a software is free and gets really popular they either get bought out by another company or the free goes away.
legendary
Activity: 1726
Merit: 1018
Most are ranging from $2,200 to $2,500.

The seller still has to pay 2.5% to eBay and 10% to PayPal.

I thought it was 10% to ebay and 4% to paypal.  You can get ebay deals though sometimes.  I had $5 final value fee not too long ago.

You can get occasional deals like that.

Final value fees charged by eBay are normally 10%.  This does not include any possible listing fees.  I had it reversed.  PayPal is normally always 2.5% for anything sold on eBay.

OK I was thinking you had reversed but for some reason I had it in my mind that paypal was 4%.  Is it less for ebay sales through paypal then a normal paypal transaction?  Or maybe they reduced it?
legendary
Activity: 1302
Merit: 1318
Technical Analyst/Trader
I had bought a week ago antminer s7 but one chain problem and hasrate 3000 ~ghs working..Please help me...the following problem photographs,

Looks like no power to the last hashing board. (far left looking at the front of the miner)

Which means you may need to swap PCI-e cords to the boards AFTER you have shut off the PSU.  DO NOT turn on the PSU until all PCI-e cords have been swapped to determine if it's bad cords or bad rail in the PSU.

We are also assuming you have tried a soft reboot from the system menu...  Sometimes, that's all that's needed.
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