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481  Bitcoin / Mining speculation / Block erupter blade profitablility? on: April 27, 2014, 07:46:23 PM
Could these be made profitable again through underclocking?  Say, installing an 8Mhz crystal to operate at a slower speed. (8x28x32=7168Mhs)

I have a few of these that I turned off recently.   I am thinking about putting them back online and underclocking them for reduced power usage.

anyone tried this?  If I could get them under 4W/Gh it might be worth it. Wink
482  Economy / Computer hardware / Re: [WTB] Looking for BFL singles again. on: April 27, 2014, 07:30:06 PM
Bump
483  Economy / Computer hardware / Re: [WTB] Looking for BFL singles again. on: April 26, 2014, 12:44:45 PM
How much you offering per 60 GH single?

Comparable to Antminer S1 so about .2-.25 BTC
484  Economy / Computer hardware / [WTB] Looking for BFL singles again. on: April 26, 2014, 12:37:43 PM
Want to buy bfl singles.  Paying comparable GH/BTC as antminer S1's. Post here with offers or PM me.  

I'll pay escrow fees through Ognasty.  Let me know on shipping.  Might pay that too.  I am located on east cost, US.

Only interested in singles that are complete (have all parts except crappy power brick).  Ones with early heatpipe heatsinks preferred.

Thanks!
485  Bitcoin / Hardware / Re: Hardware monitoring on: April 26, 2014, 12:27:57 PM
You could try something like Anubis if you have a computer that is on anyway.  It listens for api calls from cgminer/bfgminer.

https://bitcointalk.org/index.php?topic=57342.0

edit: you can set the api port to whatever you like.  this should get you around a firewall. Wink

486  Economy / Computer hardware / Re: WTS CoinTerra Terraminer IV (1.7TH/s) on: April 26, 2014, 02:34:17 AM
Hmm.. You sold it? Who did you use for escrow?
487  Bitcoin / Hardware / Re: [Antminer S1 Sales open] Price changes daily, now 0.619 BTC for 180GH/s on: April 25, 2014, 05:30:47 PM
I received one with a bad temp sensor.  Fans ran at 100%.  Replaced it myself and all is well.  

Oddly, this same unit, overclocked to 387.5Mhz, has almost no errors!  Maybe 1 a day.
488  Bitcoin / Hardware / Re: Antminer S1 got shot on: April 25, 2014, 01:46:38 AM
i think antminers got shot
What caliber? If .22LR you might be able to fix. Anything larger probably not a chance.



Probably birdshot. Shocked
489  Economy / Computer hardware / Re: [WTS] 1 Antminer S2 on: April 09, 2014, 04:13:04 AM
Whats up with the connector in one of your pictures?  It looks damaged:

http://imgur.com/a/D4xcV#1

I am interested. Can pickup in person.
490  Bitcoin / Hardware / Re: [Antminer S1 Sales open] Price changes daily, now 0.893 BTC for 180GH/s on: April 09, 2014, 01:40:29 AM
Anyone else NOT been able to access bitmain's website?  I check it every couple of days to see if anything is in stock again, but getting nothing today. Huh
491  Economy / Reputation / Re: Helipotte's Reputation/Trust Thread on: April 08, 2014, 11:39:12 PM
Hi Helipotte,
I have just rented EBLades and it is showing Hash. 0.00 GH/s on LeaseRig.net, and also no activity in my pool stats.
Can you rectify and have any downtime added to my mining time, please.
Regards
FFERI

Use port 12234 for Eligius.
492  Economy / Computer hardware / Re: Looking to sell partially working Btmine unit on: April 04, 2014, 04:10:29 PM
What is it's "normal fully functional" hashrate?  I do electronics repair and might be interested.  Would you do escrow?

Pictures? Smiley
493  Economy / Computer hardware / Re: 5 CoinTerra units in hand for sale. on: April 02, 2014, 03:10:53 AM
Asking price per unit?
494  Economy / Reputation / Helipotte's Reputation/Trust Thread on: March 18, 2014, 02:15:21 AM
Post here if you did business with me.
495  Bitcoin / Mining / Re: 240 vs 120vac psu for setting up antfarm on: March 17, 2014, 12:15:31 AM
How many outlets?


5. Half amperage allows me to double up on some outlets.
496  Bitcoin / Mining / Re: 240 vs 120vac psu for setting up antfarm on: March 16, 2014, 10:41:49 PM
Got all of my stuff on a refitted 240V circuit.  30A breaker outside.  I think it was an old dryer circuit.  Have 8 750W power supplies running at about 60-70%

load each.  Used an inductance meter to measure before/after 120V to 240V switch, same load.  Netted about 120W reduction in usage and power cords that are

cold to the touch.  Anything warm on AC voltage side makes me nervous.  Small benefit but worth the effort I think. Smiley
497  Economy / Computer hardware / Re: [WTS] BFL Singles & 7970 GPUs on: March 12, 2014, 02:46:50 PM
What's your price for the singles?

Thanks!

>$400.

Is that each or for more than one. Grin
498  Economy / Computer hardware / Re: [WTS] BFL Singles & 7970 GPUs on: March 11, 2014, 10:59:36 PM
What's your price for the singles?

Thanks!
499  Other / CPU/GPU Bitcoin mining hardware / Re: corsair cx750m? on: February 19, 2014, 04:58:54 PM
Got one of these powering an overclocked Antminer.  Runs cool/quiet.  Voltages are good to.  Pulls about 450W at the wall.
500  Bitcoin / Hardware / Re: 28nm ** 1T ** 900W【jingtian mining rig】 in production !!! on: February 17, 2014, 05:56:44 AM
Price? Availability? Shipping dates? Website?  So Many questions!
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