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Showing 20 of 52 results by vpereira
Post
Topic
Board CPU/GPU Bitcoin mining hardware
Re: Running one USB Block Erupter with no Fan?
by
vpereira
on 24/09/2013, 20:54:45 UTC
i just turned on a ventilator, in the high summer, middle august. so since april i think. like there is some airflow, the air temperature now is around 14 degrees, but no fan and no reported error (actually less than 1% or something like that) on bfgminer and i never had a problem.. ROI is hard to calculate, specially if you think on the price when it came into the market, but for sure they are headache zero and silent.  I prefer a 10GHs from erupter than the asic blaster (I have one, and I always think that it will burn my house down, that sometimes I have to reboot, etc)
Post
Topic
Board CPU/GPU Bitcoin mining hardware
Re: Running one USB Block Erupter with no Fan?
by
vpereira
on 24/09/2013, 09:09:31 UTC
Im running almost 40 without fan.. they are costing 0.17 BTC/each, are easy to change if one get burned and i don't want to keep it 10 years up and running.. I prefer to save watts, hub port and to keep everything in silence.. They are hot, but I don't touch them with my tong... so who cares
Post
Topic
Board Computer hardware
Re: [Sell][in stock] HashBuster ASIC Miners
by
vpereira
on 23/09/2013, 10:41:25 UTC
and how you will plugin your hasbuster? with which software you will mine?
Post
Topic
Board Computer hardware
Re: [Sell][in stock] HashBuster ASIC Miners
by
vpereira
on 22/09/2013, 20:09:06 UTC
whats not clear is how to mine it? does it get recognized as icarus and hence is supported by cgminer? so many open questions while an erupter costs 0.17 btc....
Post
Topic
Board Computer hardware
Re: [Sell][in stock] HashBuster ASIC Miners
by
vpereira
on 22/09/2013, 07:35:49 UTC
any news about it or is it a scam? does anybody bought it and received it!
Post
Topic
Board Computer hardware
Re: [Sell][in stock] HashBuster ASIC Miners
by
vpereira
on 19/09/2013, 09:54:53 UTC
bump! I would like to see some pictures as well

interested ! Few questions:

1) Does it run smooth with BFGminer and/or CGminer?

1b) Do you have screenshots of the hashingpower/preformance on BFG/CGminer? please post them. Thanks.

2) Does it come with installationinstruction/manual?
Post
Topic
Board Mining speculation
Re: USB block erupters are now useless. $5 - $7 each.
by
vpereira
on 09/09/2013, 19:06:03 UTC
what I dont get it is: for 3.0 BTC I can get 12, reaching ~ 4.0GB/s, It isn't cheap comparing with the blade (5.5, I can get 13 GB/s), but if I look on ebay, a 5GB/s BFL is being sold for 5-8 BTC.. so there is an advantage on the block erupter that people just ignore: It's here and you can buy 1,5,30,50! I have one blade and one BFL, 14 lancelots and 20 erupter.. the erupter are the one that give me less headache. They mine, they are not loud, they work fine with rapi, I dont need ventilator.. they just work! I do 31260 GH/s all of them still profitable (I'm doing 5.3 BTC/m)...
Post
Topic
Board Hardware
Re: 25 TH/s ASIC miner?
by
vpereira
on 05/09/2013, 20:09:18 UTC
I will love to see people doing pre-order selling their legs, wives, etc and then "we are almost there", "we didn't receive the chips", "chinese mafia is blackmailing me", "we must review our plans and drop 50% of the hash power", etc, etc, etc
Post
Topic
Board Pools
Re: [19 TH/s] BitMinter.com [ASIC support: var diff, Stratum, GBT, rollntime]
by
vpereira
on 01/09/2013, 19:51:22 UTC
yup, odd. It always worked like a charm. I added a proxy on two VPS that I have and I'm balancing it via DNS.. I will keep it behind the proxy since I prefer to mine on bitminter.com Smiley
Post
Topic
Board Pools
Re: [19 TH/s] BitMinter.com [ASIC support: var diff, Stratum, GBT, rollntime]
by
vpereira
on 01/09/2013, 18:51:50 UTC
The stratum proxy doesn't handle any error. Doesn't matter what you send, it forwards. As I told you another problem is, that you introduces a single point of failure. I don't want my whole cluster offline, because my pi proxy is down. From my network, just the first worker is able to connect to mint.bitminter.com. In all the others, the bfgminer switches to a backup pool (it says that mint.bitminter.com is dead) I have 3GB/H going to you and the others 12GB/H going somewhere else :-/ 

Code:

pi@raspberrypi ~ $ nc -v -w 5 mint.bitminter.com 3333
nc: connect to mint.bitminter.com port 3333 (tcp) timed out: Operation now in progress
pi@raspberrypi ~ $ nc -v -w 5 mint.bitminter.com 9332
nc: connect to mint.bitminter.com port 9332 (tcp) timed out: Operation now in progress
pi@raspberrypi ~ $ nc -v -w 5 www.web.de 80
Connection to www.web.de 80 port [tcp/http] succeeded!
pi@raspberrypi ~ $ nc -v -w 5 www.redtube.com 80
Connection to www.redtube.com 80 port [tcp/http] succeeded!
pi@raspberrypi ~ $
Post
Topic
Board Pools
Re: [19 TH/s] BitMinter.com [ASIC support: var diff, Stratum, GBT, rollntime]
by
vpereira
on 01/09/2013, 18:15:01 UTC
I'm having problem to connect more than one client to bitminter. I have 3 workers, that I don't want to put behind the stratum proxy - cause its bugged and it introduces one more point of failure - but looks like now I'm just able to connect with one client. are you filtering the number of connections per ip to help you to fight against the DDoS?
Post
Topic
Board Hardware
Re: Is it still worth getting a 5 GH/s Bitcoin Miner BFL?
by
vpereira
on 31/08/2013, 19:01:27 UTC
Ah, no, you did not... "If you produce less bitcoins (in the life of the miner) then the miner cost (in bitcoins), then mining activities has created a loss " <-- Most of the time when people start using this argument, they also say that it would be better to spend that money on BTC and save it than purchacing the mining equipment as you'd have more money in the long run.  That is why I used the horse and water analogy... if a person can buy and wait they should and would be ahead, but not everyone can.

People mining for profit should do their best to separate profits/losses from mining activities and profits/losses from speculation.

If anyone is trying to determine if they should start a mining operation (for profit) or speculate on the price of bitcoins(for profit), they should do their own research and come up with their own conclusions. Random people on some forum may not be giving the best advice.  Grin

well said... from the miner point of view, to recommend people to buy coins makes sense: one less miner to fight against and one (or more) transaction(s) to be mined.
Post
Topic
Board Hardware
Re: Is it still worth getting a 5 GH/s Bitcoin Miner BFL?
by
vpereira
on 31/08/2013, 17:51:51 UTC
True, but overpriced, and with all the additional difficulties that come with eBay items.

which "additional difficulties" come with ebay that you don't have with BFL? I bought one overpriced, true, but well It is up and running. You can pre-order it cheap and don't receive it or receive it in.. january Smiley
Post
Topic
Board Hardware
Re: [Work in progess] Burnins Avalon Chip to mining board service
by
vpereira
on 29/08/2013, 18:50:04 UTC
shame on you (the seller is probably reading it) http://www.ebay.de/itm/Asic-Miner-Bitburner-XX-bis-18-GH-s-/251326535529?pt=DE_Computer_Sonstige&hash=item3a843a9769 // he says "its everything there, avalon will arrive in the next weeks".. that's scam.
Post
Topic
Board Hardware
Re: [Work in progess] Burnins Avalon Chip to mining board service
by
vpereira
on 29/08/2013, 16:00:39 UTC
the funniest thing to do is to read the first page of all those custom hardware new vendors and then jump straight to the last page. All of the posts start like "i love you,  i want to buy it now,  i wanna a baby with you" and then in the past page: "scammer, i sue you, i want answers now".. while fpgas and asic miners are hated or outdated, they are up and mining


Post
Topic
Board Hardware
Re: Bitcoin "Monarch" PCI Express 600 GH/s cards.. What the heck
by
vpereira
on 20/08/2013, 22:01:43 UTC
a lot of stupid ppl will preorder it.. so as long as people are willing to be ripped off we will always have some scammers around
Post
Topic
Board Mining
Re: Donation to help ButterflyLabs to ship faster
by
vpereira
on 02/08/2013, 11:12:22 UTC
i would love to hear that they are already mining with your hardware. as fpga miner myself, it means that it wont get harder to mine as soon the they ship, cause the same hardware is already hashing Smiley
Post
Topic
Board Altcoin Discussion
Re: BlockBurner LLC - Crucible FPGA Scrypt Miner - Moving Forward
by
vpereira
on 31/07/2013, 22:06:21 UTC
I"m interested as well, I do have an idea: can you take bitcoin FPGA miners as part of payment or even somehow adapt them to be able to work with ltc?


Count me in. Subscribed on the website.
Highly interested.
Post
Topic
Board Altcoin Discussion
Re: BlockBurner LLC - Crucible FPGA Scrypt Miner - Moving Forward
by
vpereira
on 30/07/2013, 12:28:49 UTC
I"m interested as well, I do have an idea: can you take bitcoin FPGA miners as part of payment or even somehow adapt them to be able to work with ltd?


Count me in. Subscribed on the website.
Highly interested.
Post
Topic
Board Mining software (miners)
Re: BFGMiner 3.1.3: modular ASIC/FPGA, GBT, Strtm, RPC, Lnx/OpnWrt/PPA/W64, BFLSC
by
vpereira
on 30/07/2013, 08:33:07 UTC
no clue on your /var/log/messages?