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2681  Economy / Computer hardware / (sold!!) [EU] Bitmain Antminer R4 8.7Th/s with Enermax PSU on: August 26, 2017, 02:26:46 PM
edit2: And the miner is now sold! Thread is locked.

edit: Reserved to a potential buyer at the moment.

Hello ladies and gents,
I'm selling one Antminer R4 8.7 Th/s miner with Enermax Revolution 87+ 1000W power supply (80 PLUS Gold rating efficiency) included.

Available right now.

The miner has been in a warranty repair in March 2017 at Bitmain and has worked nicely ever since without any pauses.
I've had the miner cooling fan at manual speed 100% to have a maximized cooling effect.
It still is reasonably quiet even with the 100% speed fan.

The power supply has been repaired with a new cooling fan when the original cooling fan failed.
The fan failure didn't do any damage to the power supply itself because the power supply shuts itself down when the cooling fan tachometer goes to a zero rpm speed.
The new fan is Arctic F14 140mm standard fan.
Specs: https://www.arctic.ac/eu_en/f14.html

Price incl. shipping in EU: 1500 EUR

Location: Finland (EU area)

You can pay me directly with BTC or we can use a escrow service.
Escrow fee is at buyer's expense.

More info about the Antminer R4 at Bitmain.com:
https://shop.bitmain.com/market.htm?name=antminer_r4_silent_bitcoin_miner_for_home

More info about the Enermax Revolution 87+ 1000W power supply:
http://www.enermax.com/home.php?fn=eng/product_a1_1_1&lv0=1&lv1=58&no=190

Click here to see..
picture 1: https://i.imgur.com/Gnc4xWa.jpg
picture 2: https://i.imgur.com/KfSrGpb.jpg
picture 3: https://i.imgur.com/gv9WUsH.jpg
picture 4: https://i.imgur.com/fZmxor2.jpg
picture 5: https://i.imgur.com/oanbEXU.jpg
picture 6: https://i.imgur.com/SWigX5z.jpg
2682  Alternate cryptocurrencies / Mining (Altcoins) / Re: BW.com L21 - Litecoin (scrypt) ASIC miner - unofficial speculation thread on: August 26, 2017, 01:25:08 PM
I haven't tried yet as I'm keeping it at the 684M frequency as it was delivered and the hash rate is a decent 570-580Mh/s.
2683  Bitcoin / Bitcoin Discussion / Re: HARDWARE MINING ITALIA on: August 26, 2017, 01:23:53 PM
Please move this here.

Bitcoin Forum > Local > Italiano (Italian)
https://bitcointalk.org/index.php?board=28.0
2684  Alternate cryptocurrencies / Mining (Altcoins) / Re: BW.com L21 - Litecoin (scrypt) ASIC miner - unofficial speculation thread on: August 26, 2017, 12:27:11 PM
Minimum order is 100 pieces? If I got that right from the FB page.

If that's the case, anybody interested in a group buy?
I'd get 10 to 20 of them.

Thanks
Yeah, you need someone to do a group buy.
But it is not that impossible if there is from 3 to 5 guys that want 10 to 20 pieces and then like 10-20 guys that want less quantity.
2685  Alternate cryptocurrencies / Mining (Altcoins) / Re: (Review/Guide) BW.com BW-L21, 550 Mh/s, 950W Litecoin (scrypt) ASIC miner on: August 26, 2017, 10:27:07 AM
Very nice review, seems to be a good competitor for the L3+

Wonder how did do 900W @28nm instead of Antminers 800W @16nm...

Really would like to get my hand on some of these Wink

Also send you a PM
PM replied.

I'm pretty sure that BM1485 chip in L3+ is 28nm node process  too.

Highly doubt that. Most likely all their lineup is L3+/S9/D3 is done on same process to cut costs. Most  likely they are also very similar, most differences coming into chip codebase.
Your argument is invalid, it is actually cheaper to make 28nm node process chips.

Bitmain is not mentioning the node process any where visible. If it was 16nm they would use it in advertising just like they use it a lot in the Antminer S9 advertising.

I tried a lot of Google searching but I was unable to find which process BM1485 is done.
2686  Alternate cryptocurrencies / Mining (Altcoins) / Re: (Review/Guide) BW.com BW-L21, 550 Mh/s, 950W Litecoin (scrypt) ASIC miner on: August 26, 2017, 08:38:03 AM
Very nice review, seems to be a good competitor for the L3+

Wonder how did do 900W @28nm instead of Antminers 800W @16nm...

Really would like to get my hand on some of these Wink

Also send you a PM
PM replied.

I'm pretty sure that BM1485 chip in L3+ is 28nm node process  too.
2687  Bitcoin / Hardware / Re: Avalon A7 announced on: August 25, 2017, 10:02:47 PM
Phil have you tried contacting Ebang if they could sell their hardware more easily than Canaan at the moment?
2688  Alternate cryptocurrencies / Mining (Altcoins) / Re: (Review/Guide) BW.com BW-L21, 550 Mh/s, 950W Litecoin (scrypt) ASIC miner on: August 25, 2017, 04:14:40 PM
nice review, i hope they give it to you a bit more for some "in depth testing" Wink
Too bad they don't lower the minimum qty. Would be nice to see some competition for bitmain in the small ops segment.
Any word on warranty-handling from their side ?
Thanks.  Smiley
In the introduction video BW.com mentions that there is a six month warranty, in which you can send it back for them to do the needed repairs that are because of quality issues.
2689  Alternate cryptocurrencies / Mining (Altcoins) / Re: (Review/Guide) BW.com BW-L21, 550 Mh/s, 950W Litecoin (scrypt) ASIC miner on: August 25, 2017, 02:08:59 PM
Did you test any other pools than Nicehash?
Yeah, I moved to Prohashing.com and it is working ok as well.
2690  Alternate cryptocurrencies / Mining (Altcoins) / Re: https://asic-trade.com Is this a scam store? on: August 25, 2017, 01:30:33 PM
It's a sad fact that most of the 3rd party resellers advertising here at the Bitcointalk are scammers.  Undecided

Eastshore.xyz and Holybitcoin.com are the few that I know are trustworthy.


Hi, I was able to access the eastshore website but I could not reach holybitcoin, is their website down for maintenance or something?

Regards
You need to ask Holyscott about that.
2691  Alternate cryptocurrencies / Mining (Altcoins) / Re: New PSU shocking me on: August 25, 2017, 12:57:40 PM
Ok, sounds good  Smiley
2692  Alternate cryptocurrencies / Mining (Altcoins) / Re: What are you mining today? on: August 25, 2017, 12:32:18 PM
I'm mining..
BTC with BTC ASIC hardware
BTC via multipool Prohashing with LTC ASIC hardware
BTC via selling hashrate at  Nicehash with X11 ASIC hardware.

BTC all the way.  Cheesy
2693  Alternate cryptocurrencies / Mining (Altcoins) / Re: New PSU shocking me on: August 25, 2017, 12:28:58 PM
I would recommend doing what I said in the previous post before selling the house.
2694  Alternate cryptocurrencies / Mining (Altcoins) / Re: https://asic-trade.com Is this a scam store? on: August 25, 2017, 12:27:08 PM
It's a sad fact that most of the 3rd party resellers advertising here at the Bitcointalk are scammers.  Undecided

Eastshore.xyz and Holybitcoin.com are the few that I know are trustworthy.
2695  Alternate cryptocurrencies / Mining (Altcoins) / Re: Launching the Antminer L3+, World's Most Powerful and Efficient Litecoin Miner on: August 25, 2017, 12:25:21 PM
HW stands for the hardware error. But your HW number is so small that it is nothing to worry about and it does not affect the hash rate.
2696  Bitcoin / Mining support / Re: Help building Rpi with Avalon openwrt image on: August 25, 2017, 10:10:39 AM
OP, did you follow these instructions by Canaan Creative

These instructions are for the AvalonMiner 6
https://canaan.io/question/how-do-i-setup-an-avalon6-with-a-raspberry-pi/

These instructions are for the AvalonMiner 721 and AvalonMiner 741
https://canaan.io/question/how-do-i-connect-an-avalonminer-721-and-avalonminer-controller-including-raspberry-pi-1-2-and-3/
2697  Alternate cryptocurrencies / Service Discussion (Altcoins) / Re: Hashnest L3+ on: August 25, 2017, 10:05:47 AM
1. No
2. No
3. do not use you won't get profit

End of the story....

Sadly it kind of looks like that.....

I'm wondering if they will be so restrictive with the D3 ( if they bring it to hashnest ) since they don't have a X11 pool....
My guess is that Bitmain won't host miner in the Hashnest that are pointed to other pool than Antpool.

They most likely will come up with a Dash pool in the future.
2698  Bitcoin / Pools / Re: BITMAIN announces Antpool on: August 25, 2017, 09:49:31 AM
Well it's not like they haven't done a bunch of empty block before. I'm not surprised. I'm disappointed.
2699  Bitcoin / Mining support / Re: Networking - wifi / ethernet on: August 25, 2017, 09:21:50 AM
If there is no possibility to run an Ethernet cable to the mining room, you could try a powerline Ethernet solution.
This method uses your existing electrical wiring for communication.
See this article for more information https://en.wikipedia.org/wiki/Power-line_communication

You can find products in Newegg for example.

https://www.newegg.com/Powerline-Networking/SubCategory/ID-294?Tpk=powerline&Order=BESTSELLING

https://www.newegg.com/Product/Product.aspx?Item=N82E16833704164
2700  Bitcoin / Hardware / Re: Avalon A7 announced on: August 25, 2017, 09:09:07 AM
Hello Everyone, anyone working Avalon, on 1200W PSU?   can you tell me can it handle?  

Its risky - the specs want it to run at 1150W with up to a 15% variance, which would put you at 1322. Use a 1500 to be safe.
No, 1150 W is the power consumption measured at wall.
HP 1200W server power supply is sufficient when your mains voltage is from 200V to 240V area.
End of story.

With the 93% PSU power efficiency in the Avalon specs the consumption in the 12VDC rail is about 1070W.
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