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1  Alternate cryptocurrencies / Mining (Altcoins) / Re: Reference list of mobos with 8 OR MORE pcie slots on: August 20, 2018, 07:48:39 PM
Anyone: any new motherboard release?
2  Bitcoin / Hardware / Re: 7nm Avalon ASIC (A3207) AvalonMiner A9 0.06-0.07 J/GH on: August 01, 2018, 07:50:17 PM
https://twitter.com/stevenmosher/status/1024605157902835712

7nm  256 cores per chip  ( 2x)  the 16nm



https://twitter.com/stevenmosher/status/1024605165200932864

chips bring up

3  Bitcoin / Hardware / 7nm Avalon ASIC (A3207) AvalonMiner A9 0.06-0.07 J/GH on: July 31, 2018, 08:31:38 PM
Looks like redtheminer spilled the beans first:
https://twitter.com/redtheminer/status/1024307705006022657

  • Product: AvalonMiner A9 series
  • Speed: 26.5TH/s - 30TH/s
  • Power: 1720 W (typical)
  • Energy efficiency: 0.06~0.07 J/GH
  • Chip: A3207 7nm ASIC
  • Fan: 1x 14038 fan
  • Note: Subject to changes(translation?)

4  Alternate cryptocurrencies / Mining (Altcoins) / Re: Innosilicon A5 DashMaster 30.2G 750W on: July 17, 2018, 06:47:39 PM
Innosilicon A1 was No. 1 btc Asic in 2014, independently developed by innosilicon, who subsequently developed A2 to A6 various leading performance mining asic in the world.

You say A2 to A6, but I don't think you guys ever released the A3. It was supposed to be a Bitcoin mining chip succeeding the A1...
5  Alternate cryptocurrencies / Mining (Altcoins) / Re: Reference list of mobos with 8 OR MORE pcie slots on: June 27, 2018, 05:06:36 PM
I added the RebTech 8GPU-MB:



Very interesting product and company. RebTech seems to have existed since 2015 (http://rebtech.ro) but they are now designing their own motherboard and even a custom GPU and they are advertising them on a new website (domain name http://rebtech.ai bougth 2 months ago.)

The mobo is very compact and has 8 PCIe slots exposed as USB ports (no need for risers on the mobo side). And RebTech also made a custom GPU with a USB port instead of the PCIe edge connector. So combined together, the mobo + custom GPUs (RX470 8GB) offers a completely riser-free setup.
6  Alternate cryptocurrencies / Mining (Altcoins) / Re: Reference list of mobos with 8 OR MORE pcie slots on: June 22, 2018, 05:46:53 AM
No new hardware released in a month? Anyone?
7  Alternate cryptocurrencies / Mining (Altcoins) / Re: Reference list of mobos with 8 OR MORE pcie slots on: May 30, 2018, 11:52:58 PM
Asus offers The ASUS H370 Mining Master connects 20 GPUs to one motherboard with PCIe over USB.

http://edgeup.asus.com/2018/asus-h370-mining-master-20-gpus-one-motherboard-pcie-over-usb/

Thanks. Added to http://bitcoin.zorinaq.com/many_pcie/
Interesting: this ASUS blog post reveals they sold "six figures" of the B250 Mining Expert. Assuming fully populated (19 cards) it means more than 20% of the estimated ~10 million GPUs in mining farms are running on the B250 Mining Expert.
8  Bitcoin / Mining speculation / Re: Avalon pursuing 7nm technology on: May 18, 2018, 09:02:20 PM
My message brings an update a year later to this thread... but as part of Canaan's IPO announce, 7nm is confirmed for the "second half of 2018", see page 94 of http://www.hkexnews.hk/APP/SEHK/2018/2018051401/Documents/SEHK201805150005.pdf

Specifically they taped out 7nm in April 2018 and final products are arriving in the 3rd quarter (p. 118)

They had revenues of 1296 million RMB (203 million USD) in 2017 (page I-32). I agree they have zero intentions to abandon the Bitcoin mining industry. Working on AI accelerator chips is just a natural way to expand their business into other areas.
9  Alternate cryptocurrencies / Mining (Altcoins) / Re: Reference list of mobos with 8 OR MORE pcie slots on: May 16, 2018, 05:15:40 PM
there is also the MSI HF-310-F Pro with 13 PCIE slots

Thanks. Added. Based on the layout of PCIe slots present but not installed, it seems like they may have been working on an 18-slot motherboard...

10  Alternate cryptocurrencies / Mining (Altcoins) / Re: Reference list of mobos with 8 OR MORE pcie slots on: May 16, 2018, 03:19:32 AM
New motherboard: Biostar TB250-BTC D+. Relatively similar to the Colorful C.B250A-BTC PLUS V20 in terms of layout and features. I wouldn't be surprised if the 2 shared designers (ODM product?)


11  Bitcoin / Mining speculation / Re: Avalon pursuing 7nm technology on: May 16, 2018, 02:57:48 AM
My message brings an update a year later to this thread... but as part of Canaan's IPO announce, 7nm is confirmed for the "second half of 2018", see page 94 of http://www.hkexnews.hk/APP/SEHK/2018/2018051401/Documents/SEHK201805150005.pdf
12  Alternate cryptocurrencies / Mining (Altcoins) / Re: DIY FPGA Mining rig for any algorithm with fast ROI on: May 07, 2018, 05:21:08 PM

It would be nice to have a complete database documenting all PoW algos (including pseudo-code). If someone feels motivated to do it, I'd be glad to sponsor them.

Can you please elaborate on the sponsorship. I understand the equihash algorithm very well, by the way.

It would be very informal. Start writing the documentation for 3-4 PoWs. If it's high quality and think you have what it takes to continue, I'll periodically donate you some BTC whenever you add more PoWs to the doc ($10-20 per hour of work).
13  Alternate cryptocurrencies / Mining (Altcoins) / Re: Reference list of mobos with 8 OR MORE pcie slots on: May 06, 2018, 07:35:21 PM
So, no new motherboard release that I could add to the list?
14  Alternate cryptocurrencies / Mining (Altcoins) / Re: DIY FPGA Mining rig for any algorithm with fast ROI on: May 06, 2018, 05:52:44 PM
Regarding the algorithms I spent months analyzing every single one to determine which were most suitable to FPGA's.  I checked them all.

This research alone is a huge effort. You are very dedicated!

It would be nice to have a complete database documenting all PoW algos (including pseudo-code). If someone feels motivated to do it, I'd be glad to sponsor them.
15  Alternate cryptocurrencies / Mining (Altcoins) / Re: DIY FPGA Mining rig for any algorithm with fast ROI on: May 06, 2018, 03:09:01 AM
whitefire990: really nice job in identifying & executing on this opportunity with FPGAs! I still have a bunch of Spartan6 LX150 FPGA hardware (from 2012, when FPGA-mining Bitcoin was a thing!) but I doubt this type of FPGA can be as profitable as your cards.

Do you have a particular process for identifying which PoW algos are the most profitable on FPGAs? For example you implemented Phi1612... it is not even implemented by tpruvot's cpuminer. It's used by LUXCoin which is a rather obscure coin (#458 on https://coinmarketcap.com). Did you manually examine hundreds of PoW algorithms to find the best opportunities?
16  Alternate cryptocurrencies / Mining (Altcoins) / Re: Reference list of mobos with 8 OR MORE pcie slots on: March 29, 2018, 09:35:22 PM
I got mixed up in my contact names. Sunfa, not Zrt, confirmed they have a 12-slot in development. This doesn't quite explain why a Zrt motherboard was photoshopped. I am still waiting for an answer from Zrt...

Zrt never replied. So I guess we will have to wait and see if this 12-slot motherboard is real...
17  Alternate cryptocurrencies / Mining (Altcoins) / Re: Reference list of mobos with 8 OR MORE pcie slots on: March 05, 2018, 11:03:07 PM
I got mixed up in my contact names. Sunfa, not Zrt, confirmed they have a 12-slot in development. This doesn't quite explain why a Zrt motherboard was photoshopped. I am still waiting for an answer from Zrt...
18  Alternate cryptocurrencies / Mining (Altcoins) / Re: Reference list of mobos with 8 OR MORE pcie slots on: March 03, 2018, 06:52:26 PM
There might be a 12 slot PCIe motherboard, but I can't find who manufactures it. This is seems to be a Shenzhen Zrt Co design. I contacted them to confirm... Only one random Alibaba seller has pictures of it: https://fashionplaza.en.alibaba.com/product/60680844122-805574575/Fast_shipping_p106_12pcs_gpu_ZEC_Zcash_ETH_miner_ethereum_mining_machine.html

However I have a sneaking suspicion of this being a scam, a picture photoshopped from ZRTD-101. Slots 4 5 6 (from the right) seem digitally inserted. It's a wide area with no screw holes for support (flimsy), and the PCB/component layout is too repetitive. And the entire rest of the PCB layout (even the faintly visible traces) are strictly identical to the ZRTD-101... Plus powering 12 cards with the 12 power outputs on the PCB, fed by only 7 power inputs is not a great idea, unless your cards are low power, but then it would limit the utility of the mobo...



Shenzhen Zrt Co replied to me and confirmed they have a 12-slot board currently in development. They said it will be released probably in a "few months". They said some suppliers are already advertising it (hence the photoshopped images.)

Edit: I got mixed up in my contacts. Sunfa, not Zrt, confirmed they have a 12-slot in development. This doesn't quite explain why a Zrt motherboard was photoshopped. I am still waiting for an answer from Zrt...
19  Alternate cryptocurrencies / Mining (Altcoins) / Re: Reference list of mobos with 8 OR MORE pcie slots on: February 28, 2018, 04:30:04 AM
Thanks for the request, I added the Olike3C and Colorful C.J1900A-BTC PLUS V20.



20  Alternate cryptocurrencies / Mining (Altcoins) / Re: Reference list of mobos with 8 OR MORE pcie slots on: February 27, 2018, 10:54:41 PM
Yanyu Gongkong drastically redesigned the K17 v1.0 into v1.2 which is now almost identical to the K37 except:
  • K17 v1.2 has two mechanical USB ports carrying a PCIe signal and two 25-pin header carrying a PCIe signal.
  • K37 has four mechanical USB ports carrying a PCIe signal and one 25-pin header carrying a PCIe signal.

I am waiting for confirmation from the vendor whether these PCIe signals are fully usable. This would technically make the K17 v1.2 a "12-slot" and K37 a "13-slot" motherboard.
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