Topic: ANTMINER S7 is available at bitmaintech.com with 4.86TH/s, 0.25J/GH - page 227. (Read 528055 times)

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For Sale is
ANTMINER S7 BATCH 6

AntMiner S7 BATCH 6 with 4.05th/s is available to order. Shipping may start between Dec. 7 ~ Dec. 17 (if shipped out 5 days later than it, it won't be considered as delay ).

Chip quantity per unit: 145x BM1385
Rated Voltage: 11.60 ~ 13.00V
Dimensions: 301mm(L)*123mm(W)*155mm(H)


https://www.bitmaintech.com/productDetail.htm?pid=00020151105082702881F8f0B9I405FF

May i ask about any guys have get Batch 1 refund ?

Batch 4 and 5 are sold out.

Just received an email that my previously expired order has been paid. Noticed that payment date and time is when they updated the order not when I paid which was over 14 hours ago. Hopefully, this won't delay shipment.

Quite the wild ride sir.
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Yes, it is quite a wild ride.  Not to say it won't have it's up's and down's (consolidation moves) while heading upward, cause it will definitely have those kind of moves on the way up.  We had similar moves like this on the way up in November, 2013.

I got my miner (batch 1) shipped 1 day before actual delay would count

600mhz stickers on the boards.

but it randomly beeps,
goes offline sometimes, not sure if connected to the beeps
and sometimes it has 3,8 average hash was checking in....

Have they paid anyone's promised money back yet for shipping fing late?

BITMAIN should get these fixed, but it sometimes takes them a day to do it.  I've seen it happen ... every time they release a new product, and they've always fixed the expired orders.  Hold on to your transaction number and shoot it to them in a support ticket.  I know it's a headache, but it'll sort.

Same here.... Had 11 confirmations then order expired. Now showing over 67 confirmations and order status still says expired / unpaid after email with screenshots to webmaster. I would think they would honor these orders. If not, how to we get BTC back?

FTFY  

I find it quite odd that when HW batch or HN hash is actually on sale, not announcement but first hour store is open AND they sell hundreds of units that the BTC price drops in the same hour. Then when units sold out or sales slow significantly BTC stabilizes and starts to rise. Is there any evidence to support them holding BTC from sales? Friday 9am China time, they are selling another 500 units into HN, if there is huge demand at open and they sell 100-200 units in the first 2 hours, let see what the price does. That would be 8pm ET Thursday if I am doing the time conversion correctly.

Bitmain holds significant amounts of BTC, they support Bitcoin and don't simply dump it on exchanges. If there are price drops after batch announcements then its coincidental.

I would love to see the Bitmain web site about now...

My s5's would crash the os going against nicehash. Not often but enough to cause me to get remote switched pdu's. I used m'sminermonitor so when it crashed all the stats stay frozen on the screen.
Seems that when the rentals are switching the hashrate went very low and then kaboom.
Had to power reset.

Had one of my s7's do it the other day. Just once, not since. Had to power cycle.
I see the red light as well sometimes. I'm always on nicehash.

Ok, back on to the S7 topic .....

I've been hashing along for over 24hrs now. No heatsinks have fallen off ........ yet.

I did have a brief issue with the following miner when I updated the IP address from the stock IP address. It sat there all dumb flashing the red light and beeping for a couple minutes. Then it woke up and has been hashing ever since.

That S7 B3 while hashing along, it will now flash the red LED. Maybe 1 a minute, sometimes 2-3-4 times in a minute.

So I looked at the Kernel Log to find out what is going on


DRV FIFO EMPTY


That's what that red LED is indicating.

I'm assuming that the miner is not getting the data to be hashed quick enough causing the FIFO buffer to run out of data.

I was hashing with the stock firmware and was having this issue. To see if the updated firmware would fix this, I updated all the miners to the latest firmware on the Bitmain site.... Just this one S7 is having the DRV FIFO EMPTY issue.

I've tried different ports on the switch, I've tried different CAT5e cables thinking maybe there is some issue with a switch port or a patch cable... nada, still tossing that error.

Any suggestions to tweak this thing??



ALSO............

I'm noticing that the S7's like to bounce around in difficulty on Nicehash ... whereas my S5's are rock solid at 2048.

Would it be better to have a fixed difficulty rather than a difficulty that is bouncing around frequently? How would that be done?

I guess I should have know this.  But that is a crazy amount to dump at once.    Wow surprised I never noticed.  But makes perfect sense.

Do we know if S4/S5 sales caused a dump? And if so how much?

They convert all coin, only coin they have is to pay miners and hashnest. Otherwise, comes in and its sold. Look at when they sold 500 s7 on HN, within 10 min of sale starting, the BTC price dropped and continued to drop till they sold out. 500 miners is almost a million USD dumped in 32 hours, the first 3 hours was a good chunk of that. When they sold out, within 1 hour BTC started going up again. BTC is a pretty small market from a liquidity perspective.

It's really hard to tell how much they have to cash out  With data centers full of gear even with low electricity, that is still a lot of money.

And they have to cash out to make next batches of miners I would think.  Guessing they go to fiat and then buy miner parts in fiat.   I'm sure they don't run day by day.  I'm confident they have a good amount of rainy day funds to keep everything going incase it ever did drop a lot.

In addition to the selling caused by the high price, there is ongoing sales of BTC that are just not optional. Bitmain must sell at least 100  coins each day to pay suppliers, workers, electric bill, and so forth.

We should expect that there will be "resistance" levels where the price brings out many seller. $500 is urely one of those points.

40 btc is a drop in the bucket, less than 2 block solves, to think such a small amount could "tank" the price is absurd.  The price is dropping because tons of people are selling right now, not just one guy with 40 coins.