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843
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Other / Off-topic / Re: Butterfly Labs is going to give lifetime warranty
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on: October 06, 2012, 11:58:43 AM
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As an Engineer, I ask myself what is definition of BFLs "life time warranty"? Is it;
1. The calculated operational lifespan of the circuit board including solder joints, fatigue rates, etc and comes out to 18 months?
2. Is it the industry standard of 25 years = life time?
3. Is it the mean lifetime remaining of the purchaser? i.e. Purchaser is caucasian male with life expectancy of 80 years and he buys it when he is 40 years old, therefore the lifetime warranty is 40 years?
What does the forum think?
More importantly, what does BFL think?
Like many statements from BFL - sketchy, suspicious and undefined. |
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844
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Bitcoin / Bitcoin Discussion / Re: Miners operate the majority of Bitcoin nodes.
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on: October 06, 2012, 10:43:44 AM
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A 51% attack would be fairly easy for anybody with the resources to do so(government) from what I understand..
Just take down Deepbit, BTCGuild, 50BTC, Eclipse, Ozcoin simultaneously.. All of a sudden 2-3 TH is all that's needed to gain 50.1%+ of the network.. am I wrong here? Seems like the bigger pools need to distribute their hashrates, maybe to multiple Cloud EC2 instances?
sure, you footing the bill? actually most miners are smarter than most of the community gives them credit for. All of the good mining software has failover mode where you can enter multiple pools including p2pool and solo mining I know people that set up mining software with 10 pools then p2pool then solo mining in their failover - that hashrate doesn't just "disappear" if big pools are attacked cheers Graet All miners should have at least 3 different backup pools, you could also list your primary pool with each one of it's servers as backup and then have alternatives, at the minimum, setup to mine on a p2pool node using one of your bitcoin addresses, as your next to last, then solo mining as your final backup, then you will always be mining somewhere unless it's your connectivity that is down. |
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849
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Bitcoin / Hardware / Re: High Efficiency FPGA & ASIC Bitcoin Mining Devices https://BTCFPGA.com
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on: October 04, 2012, 11:11:24 AM
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Is anyone else having a problem with the order confirmation page provided after ordering ? I get the following error, but perhaps I (or my browser) am at fault...
Notice: Undefined variable: order_id in /home/btcfpga/public_html/catalog/controller/account/order.php on line 149Warning: Cannot modify header information - headers already sent by (output started at /home/btcfpga/public_html/index.php:104) in /home/btcfpga/public_html/vqmod/vqcache/vq2-system_engine_controller.php on line 28Warning: Cannot modify header information - headers already sent by (output started at /home/btcfpga/public_html/index.php:104) in /home/btcfpga/public_html/vqmod/vqcache/vq2-system_engine_controller.php on line 29
Login first. |
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851
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Bitcoin / Hardware / Re: High Efficiency FPGA & ASIC Bitcoin Mining Devices https://BTCFPGA.com
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on: October 04, 2012, 02:51:39 AM
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hi tom,
just sent you an email since my PM is probably backlogged somewhere.
LOL - bad timing... I have been really trying hard to knock out emails but I just hit another hourly limit. Domain btcfpga.com has exceeded the max emails per hour (23/20 (114%)) allowed. Message will be reattempted later send me another PM right now and I will respond right now thanks Have you thought about adding another e-mail address from another provider? |
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857
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Bitcoin / Hardware / Re: USB hubs for ASICs
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on: October 02, 2012, 07:20:43 PM
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You need to determine if redundancy is important, 1 large hub = single point of failure, Multiple smaller hubs will spread out the risk and allow some margin of safety. One fails and you can plug into the others. Also make the determination if you will need USB 3.0 ports before buying. |
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