Bitcoin Forum
October 16, 2018, 05:53:43 PM *
News: Make sure you are not using versions of Bitcoin Core other than 0.17.0 [Torrent], 0.16.3, 0.15.2, or 0.14.3. More info.
 
   Home   Help Search Donate Login Register  
Pages: « 1 2 3 4 5 6 7 [8] 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 »
  Print  
Author Topic: Bitmain Announces the Antminer R4 and APW5 Power Supply, Designed for Silence  (Read 68586 times)
sidehack
Legendary
*
Online Online

Activity: 1848
Merit: 1163

Curmudgeonly hardware guy


View Profile
August 29, 2016, 10:59:47 PM
 #141

Other reasons include cooling both sides without having to mill around components, and cooling both sides without risking shorting across the different node-level ground potentials.

Both the dead boards in my care have string power.

1539712423
Hero Member
*
Offline Offline

Posts: 1539712423

View Profile Personal Message (Offline)

Ignore
1539712423
Reply with quote  #2

1539712423
Report to moderator
1539712423
Hero Member
*
Offline Offline

Posts: 1539712423

View Profile Personal Message (Offline)

Ignore
1539712423
Reply with quote  #2

1539712423
Report to moderator
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction. Advertise here.
1539712423
Hero Member
*
Offline Offline

Posts: 1539712423

View Profile Personal Message (Offline)

Ignore
1539712423
Reply with quote  #2

1539712423
Report to moderator
1539712423
Hero Member
*
Offline Offline

Posts: 1539712423

View Profile Personal Message (Offline)

Ignore
1539712423
Reply with quote  #2

1539712423
Report to moderator
NotFuzzyWarm
Legendary
*
Offline Offline

Activity: 1596
Merit: 1117


Evil beware: We have waffles!


View Profile
August 29, 2016, 11:09:57 PM
 #142

Other reasons include cooling both sides without having to mill around components, and cooling both sides without risking shorting across the different node-level ground potentials.

Both the dead boards in my care have string power.
re: cost of milling. Um, CNC mills... Almost dirt cheap in China to buy and operate.

How about IO power on board for coms? Query: Can individual strings be addressed or does it have to be the whole card?

For bitcoin to succeed the community must police itself - Joshua Zipkin aka Joshua Alexander leaked AMT A1 miner skype chats
How a miner mfgr SHOULD operate: HaggsFIN trip to Canaan My info useful? Donations welcome! 1Fuzzyk398kDWVjuC5qPX5v6CjSkvbgAbd
-Support Sidehacks miner development. Donations to:   1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
sidehack
Legendary
*
Online Online

Activity: 1848
Merit: 1163

Curmudgeonly hardware guy


View Profile
August 29, 2016, 11:12:32 PM
 #143

Not sure what you mean. The whole card is an individual string, and each card is individually addressed at the control board.

NotFuzzyWarm
Legendary
*
Offline Offline

Activity: 1596
Merit: 1117


Evil beware: We have waffles!


View Profile
August 29, 2016, 11:16:22 PM
 #144

Not sure what you mean. The whole card is an individual string, and each card is individually addressed at the control board.
That's what I wanted to know. Only whole board is tasked. I'm on Skype with Opieum2 and the CompSi Master on the issue of some folks having -- odd -- hashrate dropouts eg Phillpma. As in a whole board seeming to be feeding a shadow pool.

That aside, I though electrically the chips were powered in several paralleled banks of series strings. No?

For bitcoin to succeed the community must police itself - Joshua Zipkin aka Joshua Alexander leaked AMT A1 miner skype chats
How a miner mfgr SHOULD operate: HaggsFIN trip to Canaan My info useful? Donations welcome! 1Fuzzyk398kDWVjuC5qPX5v6CjSkvbgAbd
-Support Sidehacks miner development. Donations to:   1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
sidehack
Legendary
*
Online Online

Activity: 1848
Merit: 1163

Curmudgeonly hardware guy


View Profile
August 29, 2016, 11:33:08 PM
 #145

Not really, no. Each board has 21 nodes of 3 chips. Comms go from chip to chip at the same node, then from the third chip of one node to the first chip of the node above in a continuous data path of all 63 chips. You take out one chip, you take out the whole board. On S1 and S3 you could take out one chip and all chips before it would keep hashing, but you know if you interrupt the current in a string topology the whole thing shuts down.

NotFuzzyWarm
Legendary
*
Offline Offline

Activity: 1596
Merit: 1117


Evil beware: We have waffles!


View Profile
August 29, 2016, 11:40:39 PM
 #146

Dinna know that. Good to learn something new Wink
Makes sense in that since Vcore si divided between all the 3-chip nodes any differences in voltage between nodes is averaged out nicely. Guess I never just did the maths: Assuming a Vcore  supply of 10v/21=476mv per node. Right in line with expected chip Vcore range...

For bitcoin to succeed the community must police itself - Joshua Zipkin aka Joshua Alexander leaked AMT A1 miner skype chats
How a miner mfgr SHOULD operate: HaggsFIN trip to Canaan My info useful? Donations welcome! 1Fuzzyk398kDWVjuC5qPX5v6CjSkvbgAbd
-Support Sidehacks miner development. Donations to:   1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
sidehack
Legendary
*
Online Online

Activity: 1848
Merit: 1163

Curmudgeonly hardware guy


View Profile
August 29, 2016, 11:47:31 PM
 #147

Yeah, a wider node is better for stability since differences in voltage based on difference in current draw through the chips is averaged out. Worst part of a string is the weakest link issue where the worst-performing chip sets the voltage for the whole thing. That's why there's so much bottom-end performance variance in undervolted boards.

Which, one of these days I need to get ahold of some S9 enough to work on a good snap-in undervolt solution. I suspect it'd also work on this R4 just as well.

philipma1957
Legendary
*
Offline Offline

Activity: 2254
Merit: 1352


Avalon 841 rocks


View Profile
August 29, 2016, 11:48:08 PM
 #148

Not sure what you mean. The whole card is an individual string, and each card is individually addressed at the control board.
That's what I wanted to know. Only whole board is tasked. I'm on Skype with Opieum2 and the CompSi Master on the issue of some folks having -- odd -- hashrate dropouts eg Phillpma. As in a whole board seeming to be feeding a shadow pool.

That aside, I though electrically the chips were powered in several paralleled banks of series strings. No?

Get a cheap  router DSL

Do this modem ----- original router ------ cheap router.   The phantom s9s with a different password like rootfuckyouhacker.

If all boards pop back up I would be suspecting some diversion.

Although it could be that is the first sign of a board dying and the board will die in a week or so..

I am pretty much ready to go a bit nuts over this gear.

But I now have a second dead board and it came from the mystery drop out miner.

There is one more miner that was dropping a powered board it works now but my gut tells me it will die and I will end up with three dead boards out of six miners.


philipma1957.4           9.227k   3s   15,511   138,573,887   11.92THs   4m 36s   0.340%   0.026%   11.24THs-----down clock ---Stable
philipma1957.two2   9.499k   10s   14,150   137,968,161   10.64THs   4m 36s   0.164%   0.026%   11.21THs-----down clock ---Stable

philipma1957.6           7.911k   1s   12,721   112,717,709   8.74THs   4m 36s   0.192%   0.021%   10.08THs-----down clock----shaky
philipma1957.1           6.442k   3s   14,932   96,191,944   8.22THs   4m 36s   0.107%   0.018%    7.58THs------down clock----dead board




philipma1957.one   5.622k   4hrs   11,358   60,543,030   0GHs   4m 36s   0.142%   0.012%   0GHs ____off line testing pretty sure dead board


pattern seems to be mystery hashing  all board used then a vanished board
can be restored behind second router
but now  one seems dead
the other shaky.

and of course the one bad one  never did  this it just went xxxxx  then 0 then zip powerless

My guess is there are stages of death for the boards not a mystery hacker.

Oh no reply on second board as to where to send it.

and no info on board one which they have had since weds.

I am not a huge player  but 85,000usd  in direct business since December 2013 should be worth something.

I never thought I would be forced back to gpu mining but I now run 20 gpus and 470 mh  mostly due to the warranty service of bitmaintech.

What kills me is I want an r4 but 1400 and 90 days for  a warranty is no deal for me.

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
NotFuzzyWarm
Legendary
*
Offline Offline

Activity: 1596
Merit: 1117


Evil beware: We have waffles!


View Profile
August 29, 2016, 11:53:32 PM
 #149

re Philipma: I've never had any hints of your issue at the farm. Ja your setup works but I'm talking about getting PROOF of skimming. As in just where that boards hashing is going if not to your assigned pool where the other boards are pointed.

For bitcoin to succeed the community must police itself - Joshua Zipkin aka Joshua Alexander leaked AMT A1 miner skype chats
How a miner mfgr SHOULD operate: HaggsFIN trip to Canaan My info useful? Donations welcome! 1Fuzzyk398kDWVjuC5qPX5v6CjSkvbgAbd
-Support Sidehacks miner development. Donations to:   1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
philipma1957
Legendary
*
Offline Offline

Activity: 2254
Merit: 1352


Avalon 841 rocks


View Profile
August 30, 2016, 12:34:44 AM
 #150

re Philipma: I've never had any hints of your issue at the farm. Ja your setup works but I'm talking about getting PROOF of skimming. As in just where that boards hashing is going if not to your assigned pool where the other boards are pointed.

Would be nice to figure it out, as I said I am not quite sure if it is diverted hash or a dying board or something in the middle of that.

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
traxor
Full Member
***
Offline Offline

Activity: 229
Merit: 100


View Profile
August 30, 2016, 12:47:24 AM
 #151

I am so disappointed.  

I was really looking forward to getting a few of these.

I'll look forward to reading the reviews from those of you who did shell out the extra coin.

And; hopefully, a price drop soon.


EDIT:  Phil -- are your board failures from a specific batch?  Nevermind -- I found the answer in your post history.  Grin
Finksy
Legendary
*
Offline Offline

Activity: 1022
Merit: 1003



View Profile
August 30, 2016, 12:53:46 AM
 #152

  The price is fine if it had a real warranty.  but sadly an item that won't break even for about 400 days and how long is the warranty?

Oh I now have a second dead miner board.  so 6 units 18 board 2 dead boards.

I still like the gear .
I like that they sell gear.

The price is not the issue the warranty is a real problem.

Unfortunately without real warranty protection these are almost certain to be losing items.

I completely disagree, they are both problems.  They could have a 10 year warranty it wouldn't change the fact that they are SCREWING customers on warranty claims, even if you have done everything by the book as the customer!  I'm quite surprised they haven't extended their warranty yet, laughing all the way to the bank every time they send an email out denying warranty based on false claims on their side.

Bitmain,

I would like to thank you for increasing the price of these from your original plan of $1000.  It made my decision that much easier NOT to support your dishonourable company, and the shady practices that go along with it.  Keep up the great work, you are safely eliminating mining competition every time you release a product or deny a warranty. Until someone else comes along...

Also, they don't even have it listed in their China site: https://cnshop.bitmain.com/product.htm I guess they are too embarrassed than to try to put this one past their fellow countrymen.

IBM 2880W PSU Packages: https://bitcointalk.org/index.php?topic=966135 IBM 4K PSU Breakout Boards & Packages: https://bitcointalk.org/index.php?topic=1308296 
Server PSU-powered GPU rig solutions! https://bitcointalk.org/index.php?topic=1864539  Wallet address: 1GWQYCv22cAikgTgT1zFuAmsJ9fFqq9TXf 
philipma1957
Legendary
*
Offline Offline

Activity: 2254
Merit: 1352


Avalon 841 rocks


View Profile
August 30, 2016, 01:03:39 AM
 #153

I am so disappointed.  

I was really looking forward to getting a few of these.

I'll look forward to reading the reviews from those of you who did shell out the extra coin.

And; hopefully, a price drop soon.


EDIT:  Phil -- are your board failures from a specific batch?  

No one miner is a batch one. It mined for 65 days.

The other miner is a batch 10 it mined for 10 hours.

A third miner is flaky but would be a batch 3  not sure if it is going to lose a board.

At finksy.  The warranty length of 90 days and the fact that getting it honored is hard to do are both wrong.

I can live with high price for the gear although this item should be 1000-1100 with a real warranty say six or nine months.

Not a ninety day that is not easy to,get.

I purchased lots of gear from them lots and lots of gear.

S1 s3 s5 s7 s9 over 85000 usd .
I have 1 replacement s-1 issued I have a 150 dollar under hash adjustment.
I now need two replacement boards.
This is over three years of purchases and more then 75 pieces of gear.
I showed many ways,to use their gear and I have helped them this way.

But now looking at two dead boards and a flakey third one.
On low clocks never over clocked never run at high temps. I see warranty length and service as huge problem
Why buy gear that dies fast and you still can get the warranty?

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
Xian01
Legendary
*
Offline Offline

Activity: 1400
Merit: 1016


Christian Antkow


View Profile
August 30, 2016, 01:10:35 AM
 #154

* Xian01 sees Bitmain releases a new product geared for home mining

* Xian01 dusts off account

* Xian01 laughs out loud at the price and wonders what is in the water over there in China

* Xian01 proceeds to visit Coinbase to purchase/HODL 3 BTC instead

You suck, Bitmain.



* Xian01 resumes lurking
philipma1957
Legendary
*
Offline Offline

Activity: 2254
Merit: 1352


Avalon 841 rocks


View Profile
August 30, 2016, 01:18:20 AM
 #155

* Xian01 sees Bitmain releases a new product geared for home mining

* Xian01 dusts off account

* Xian01 laughs out loud at the price and wonders what is in the water over there in China

* Xian01 proceeds to visit Coinbase to purchase/HODL 3 BTC instead

You suck, Bitmain.



* Xian01 resumes lurking

Can't say I blame you. Good luck!

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
suchmoon
Legendary
*
Offline Offline

Activity: 1736
Merit: 1783



View Profile
August 30, 2016, 01:34:21 AM
 #156

* Xian01 sees Bitmain releases a new product geared for home mining

* Xian01 dusts off account

* Xian01 laughs out loud at the price and wonders what is in the water over there in China

* Xian01 proceeds to visit Coinbase to purchase/HODL 3 BTC instead

You suck, Bitmain.



* Xian01 resumes lurking

Yep, that's been the winning strategy for the last year or so.

NotFuzzyWarm
Legendary
*
Offline Offline

Activity: 1596
Merit: 1117


Evil beware: We have waffles!


View Profile
August 30, 2016, 02:29:05 AM
 #157

Back OT, even if shipping is zero on checkout, that only saves $140USD for me (+maybe whatever brokerage UPS might add). Still not attractive on price for me. If closer to the teaser $1k USD Bitmain posted before opening sales of the R4, sure.

And I might add that aside from the s1 I have always been a batch-1 buyer.

For bitcoin to succeed the community must police itself - Joshua Zipkin aka Joshua Alexander leaked AMT A1 miner skype chats
How a miner mfgr SHOULD operate: HaggsFIN trip to Canaan My info useful? Donations welcome! 1Fuzzyk398kDWVjuC5qPX5v6CjSkvbgAbd
-Support Sidehacks miner development. Donations to:   1BURGERAXHH6Yi6LRybRJK7ybEm5m5HwTr
Swimmer63
Legendary
*
Offline Offline

Activity: 1584
Merit: 1000



View Profile
August 30, 2016, 03:28:29 AM
 #158

* Xian01 sees Bitmain releases a new product geared for home mining

* Xian01 dusts off account

* Xian01 laughs out loud at the price and wonders what is in the water over there in China

* Xian01 proceeds to visit Coinbase to purchase/HODL 3 BTC instead

You suck, Bitmain.



* Xian01 resumes lurking

Can't say I blame you. Good luck!

This is how they make more money selling mining gear than actually mining.  I do appreciate that they still sell gear.  I do loathe their warranty and epically poor warranty repair service.  Still waiting to get a board back.  And I think a quiet miner is genius.  But even for a fanatic (like myself), $1400 is insulting.
kodokbuduk
Full Member
***
Offline Offline

Activity: 287
Merit: 100


View Profile
August 30, 2016, 04:00:03 AM
 #159

can we use one APW5 to power two antminer R4? i am in 220volt so should be generate 2600watt
philipma1957
Legendary
*
Offline Offline

Activity: 2254
Merit: 1352


Avalon 841 rocks


View Profile
August 30, 2016, 04:12:02 AM
 #160

can we use one APW5 to power two antminer R4? i am in 220volt so should be generate 2600watt

I believe you will have a shortage of pcie cables.

I mine alt coins with https://simplemining.net...
I see BTC as the super highway and alt coins as taxis and trucks needed to move transactions.
Pages: « 1 2 3 4 5 6 7 [8] 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 »
  Print  
 
Jump to:  

Sponsored by , a Bitcoin-accepting VPN.
Powered by MySQL Powered by PHP Powered by SMF 1.1.19 | SMF © 2006-2009, Simple Machines Valid XHTML 1.0! Valid CSS!