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3303
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Economy / Computer hardware / (sold!!) [WTS] [EU] 2x Antminer S9, 11.85 Th/s and 12 Th/s
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on: December 21, 2016, 09:56:48 PM
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edit2: both of the miners are now sold!
edit: one sold and the second one is at the moment reserved for a potential buyer.
(sold!)The first one is stock 11.85 Th/s (550 Mhz) , non-autotune freq firmware model.
(sold!)The second one is stock 12.93 Th/s model (non-autotune freq firmware model) underclocked to ~12 Th/s (562.50 Mhz) , because one board has trouble getting to the nominal hashrate at stock 600 Mhz frequency setting.
I'm asking the same price from both of these miners.
Price: 1.5BTC per unit +shipping costs.
PSU is not included.
Miners are in good shape and working nicely with reasonable temps.
Location: Finland (EU area)
Escrow is ok for me, at buyer's expense.
Click here to see..
(sold!) picture of the 11.85Th/s model: https://i.imgur.com/mj4XVao.jpg
(sold!) picture of the 12.0 Th/s model: https://i.imgur.com/njelyWs.jpg
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3306
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Bitcoin / Hardware / Re: GekkoScience is now dabbling with 16nm ASICs for new designs
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on: December 19, 2016, 10:05:07 PM
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With the compartively low power density of these boards (compared to S7/S9/Avalon6 etc) they could be made pretty quiet. 6 boards in a 4U would run a bit hotter than an S2 at stock, but since it's adjustable that wouldn't have to be the case.
I think that's the main issue with the latest hardware, trying to cram so much into a small box bitmain could of released single or dual board boxes, or spread the chips a bit more and had the same efficiency, in a more affordable box, with less noise. But they aren't in it for the little fella. Well they came up with the R4, it's better than S9 in that kind of sense. |
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3309
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Bitcoin / Hardware / Re: Bitmain's Released Antminer S9, World's First 16nm Miner Ready to Order
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on: December 18, 2016, 11:05:46 PM
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I now just tried with the PICkit3 to: 1. Read a good PIC firmware from a good hash board 2. Write a good PIC firmware to a dead hash board No effect. The dead hash board is still dead. So it is probably not just "soft bricked". So I wait for the answer from BitmainWarranty ( www.bitmainwarranty.com). I have previous experience with the PICkit3. Do you have the image file from the good hash board? I'd like to have a look at it if you could send it to me. In what way is your board dead? Mine died immediately AFTER a firmware update, it never hashed on the new firmware, so I'm pretty sure it's software related, unless the bad software caused something to overheat. Bitmain thinks it's an incompatible firmware, which is weird because they said it was for "all" but we'll see if they can help me. They responded to my first e-mail and I gave them more information, now I'm waiting to hear back. Thankfully I only flashed one of my S9's, the rest will probably never get a firmware update, it's too risky. Here is the HEX-file PIC16F1704_firmware_good_condition_board_S9_11.85ths_model_non-autotune.hex : https://mega.nz/#!4l8HzB7A!R_Fomh8O5uSk8VVqmRseGduxSbvl_ajDNcATl3z22hAMake sure that you know what you are doing. I take no responsibility on this.My board went dead just suddenly without any warning. |
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3313
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Bitcoin / Hardware / Re: Avalon A7 announced
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on: December 18, 2016, 10:14:31 AM
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Silly question maybe but I have 3 A6's can I string them in with an A7?
Probably not backwards comparable but why couldn't it be?
Thanks everyone
If you have the newest software version installed in the Raspberry Pi, both A6 and A7s should work. |
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