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Author Topic: [WTS] 2 * FPGA Cairnsmore --- shipping now  (Read 1360 times)
Cranky4u (OP)
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November 11, 2012, 10:56:28 PM
Last edit: November 11, 2012, 11:08:13 PM by Cranky4u
 #1

Due to spiralling utilities costs in Australia (elec = AU$0.27kW/h), I am looking to liquidate my two FPGA miners. I have qty 2, serial number 600 series, Cairnsmore 1 FPGA miners. Both have makomk's 220MHs bitstreams installed so they mine at 880MHs per board whilst consuming 80W/h. As a pair they mine at 1.6GHs whilst consuming 0.16kW/h which generates ~0.5BTC a day or 15BTC per month.

I am looking to change over my mining operations to LTC and as such the FPGAs are excess infrastructure. The funds from their sale will be put towards solar / wind power to run my LTC / gaming rig.

I am asking 20BTC + postage each. With ~4 weeks to go onto halving day, these babies should generate their new owner about 15BTC before reducing to ~7.5BTC. If you in a cheap elec zone or already have solar, then break even should be within 4~6 weeks of purchase.

Pls pm me for offers / discussions.

Regards,

Cranky

gyverlb
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November 11, 2012, 11:12:42 PM
 #2

I noticed this message :

Quote
Request for help...

I have 2 CM1s mining in Australia due to high elec costs...Over the last few weeks I have noticed that they only mine for between a few minutes to a few hours (8 tops). Having said this, the best I have done is 2 days str8 mining.

They just appear to drop of the USB line with a "boink" then cgminer reports they are "OFF". I have been using cgminer 2.7.0 > 2.8.4 on a Win 7 system with the same reuslts...could I please get some stability help. (whilling to sheel out BTC for help)

Did you solve this problem? How?

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Cranky4u (OP)
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November 11, 2012, 11:17:23 PM
 #3

I noticed this message :

Quote
Request for help...

I have 2 CM1s mining in Australia due to high elec costs...Over the last few weeks I have noticed that they only mine for between a few minutes to a few hours (8 tops). Having said this, the best I have done is 2 days str8 mining.

They just appear to drop of the USB line with a "boink" then cgminer reports they are "OFF". I have been using cgminer 2.7.0 > 2.8.4 on a Win 7 system with the same reuslts...could I please get some stability help. (whilling to sheel out BTC for help)

Did you solve this problem? How?

yeah it is solved. I had installed "BOINC" for SETI, Search for Extra-Terrristal Intelligence, a few weeks ago then the disconnects started (hindsight is a wonderful thing) - just trying to use an idle CPU to further humanity. So a few days ago I uninstalled BOINC and it has remained stable since then.

I also upgraded to cgminer 2.9.0 --- not sure if this improved stability but I think BOINC was overloading my CPU as it was up flat out and then starving the FPGAs of data (my impressions).

gyverlb
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November 11, 2012, 11:21:44 PM
 #4

I'll take both for 45BTC shipped to France with escrow (I'll trust juggalodarkclow for escrow).

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420
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November 12, 2012, 08:21:30 AM
 #5

sucks you're in australia and I haven't heard of this FPGA

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Cranky4u (OP)
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November 12, 2012, 08:39:51 AM
 #6

sucks you're in australia and I haven't heard of this FPGA

not heard of CM1's...you must have been smoking some heavy shit the past 6 months. Check the mining FPGA pages in this forum for info or http://enterpoint.co.uk/products/spartan-6-development-boards/cairnsmore-1/

happy to be of public service  Grin

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November 12, 2012, 09:14:42 AM
 #7

Okay I've heard of spartan. THese must be some multi use boards that have been made and not specifically bitcoin mining designed

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gyverlb
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November 12, 2012, 02:44:16 PM
 #8

I'll take both for 45BTC shipped to France with escrow (I'll trust juggalodarkclow for escrow).
My offer won't last for long. I'm probably losing at least 0.5BTC/day not mining with them if I'm waiting...

Additional questions do you have:
  • USB cables?
  • a stacking kit?
  • a master/slave ribon cable?

P2pool tuning guide
Trade BTC for €/$ at bitcoin.de (referral), it's cheaper and faster (acts as escrow and lets the buyers do bank transfers).
Tip: 17bdPfKXXvr7zETKRkPG14dEjfgBt5k2dd
gyverlb
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November 12, 2012, 02:47:47 PM
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With ~4 weeks to go onto halving day
More like 2 weeks and 2 days BTW.

P2pool tuning guide
Trade BTC for €/$ at bitcoin.de (referral), it's cheaper and faster (acts as escrow and lets the buyers do bank transfers).
Tip: 17bdPfKXXvr7zETKRkPG14dEjfgBt5k2dd
Cranky4u (OP)
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November 12, 2012, 10:03:07 PM
 #10

sold to a PM pending settlement.

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