BFGMiner - a modular ASIC/FPGA Bitcoin miner

Bitcoin Mining Forums: Turning Computers Into Cash Since 2011

The official bitcoin mining forum / subreddit / chat room / place to be!

PSA Regarding the Purchases of BFL Bitcoin Miner Pre-Order Spots on eBay.

I'm not sure if this will help anyone but it get my money back since it looks like it will be a long time before it will ship. I'd be happy even if this helped at least one other person in not getting ripped off for what is probably a very large amount of money.
This was new to me as this was my first pre-order purchase on eBay, but I did some researching and I found this page that describes eBay's policy on pre-order purchases. There's a lot of text, so I just want to highlight the main points.
Basically, you are protected by eBay (and PayPal if you paid with it), but the window is not open for very long. Ebay says that items must be available to ship within 30 days of the payment being made. From the day you made the payment, you have 45 days to open a case with eBay if you didn't receive the item and get your money back.
So unless your order date was very early, you will most likely not be receiving your miner within 30 days or even 45 days of making the purchase. After 45 days, there is nothing eBay or PayPal can do to help you, even if the seller decides to not send the miner to you. Now this is only my advice, but I would strongly recommend not going outside the 45 day window, in hopes of getting your miner, especially with ROI decreasing by the day. Do this only if you can afford to lose the money you spent.
This is just to make everyone aware of eBay's policies and that there may still be time to get your money back if you're still within the 45 day window. This helped me get my money back and hopefully it will be useful to some of you.
TL;DR: You can safely buy pre-order spots on eBay, but just know the seller has 30 days from when you make the payment to ship the miner to you. If he doesn't, you can open a case with eBay 45 days from the day you made the payment to get your money back.
submitted by mitman to BitcoinMining [link] [comments]

[WTS] 2x BFL Bitcoin Miner [7GHs and 10Ghs], power supplies, various USB Miners and Raspberry Pi Model B for controlling BFL

Can not sell for at least 6 months
I need to get these things out of my house. Everything runs perfectly and have been run for about 6 weeks [turned them off back in the summer after running too hot]. I bought them from Butterfly Labs directly at retail price. I am interested in knowing how much I can get for them. Doing some math I think I can get about $300-$350
I will not be making the sale until July, when I can actually get to them and get them shipped out. [No pictures, again just looking for reference prices]
What I have:
1x BFL Bitcoin Miner 7GHs (Likely could part for $60)
1x BFL Bitcoin Miner 10GHs (Likely could part for $90)
5x USB Block Eruptors 330MHs (Likely could part with the lot for $35)
2x AntMiner 2GHs [Never used] (Retail on Amazon for $35 each, could sell for $30 each)
1x Raspberry Pi Model B [would probably sell 4GB SD Card, USB Hub, Power Supply, and 16x2 LCD display with it] (Would sell the entire package for $70)
Willing to ship US only
submitted by Thinksgeek to BitMarket [link] [comments]

For Sale: Butterfly Labs BFL 50 Gh/s Bitcoin Miner and power supply on cryptothrift

For Sale: Butterfly Labs BFL 50 Gh/s Bitcoin Miner and power supply on cryptothrift for cryptocoins
Tags: BFL, BITCOIN, Miner
cryptothrift is a Bitcoin, Litecoin and altcoin marketplace and auction site with automated escrow.
submitted by cryptothrift to cryptothrift [link] [comments]

The $22,484.00 Butterfly Labs Mini Rig bitcoin miner is a huge, broken, unstable piece of shit.

(This was a rather controversial article posted on and became quite popular, even moving to the top of /bitcoin. It's since been mysteriously edited on the site [maybe by g-g-g-ghosts!] so it's being reposted here for posterity's sake. Some numbers may be off by now, but it was all accurate at the time of posting.)
Butterfly Labs has a long and horrible history with their mining rigs. They started taking pre-orders over a year ago, with a ship time sometime in late July. After numerous delays in production, shipping problems and general incompetence, the only thing they’ve managed to get out the door are some of their tiniest miners, the Jalapenos. And those mainly ended up in the hands of reviewers and blogs in order to keep pumping the Butterfly Labs hype train and securing millions of dollars of pre-orders still in limbo.Lucky BFL forums user Luke-JR however scored a sweet Mini Rig from Butterfly Labs (it’s just a coincidence he’s a driver developer for them I’m sure). This rig was originally promised to produce 1500 GH/s hashing power at 1500 watts for $30,000, but has since seen it’s hashing power slashed to a third of what was promised and it’s power consumption increased 75%, now just offer 500 GH/s at 2400 watts. They’ve promised to make good on pre-order buy sending out 3 rigs to match the initial hashing rate, so now it’s only 1500 GH/s at 6900 watts, a reduction in GH/Watt by a factor of 5.
So what does $22,484 buy you? Take a look!
Minirig is here! Today, my Minirig arrived.
FedEx apparently dropped it somewhere along the way, and the weakest part of the case, the thin metal part around the back of the PSU, broke.
I’m not sure how sturdy the back side was supposed to be, but its two pieces aren’t quite together either.
The power supplies (EVGA 1500W) also created havoc interfering with the neutral on the power line. This disrupted X10 communication significantly enough that the pool overflowed because the system controlling it was unable to turn off the pump. Workaround: This PSU supports 240V, so we rewired the outlet. 240V does not use neutral, so now all should be okay.
Edit: 240V workaround is only partial. Still having problems
But the good news is, it all seems to be working for the most part.
Next up, installing it in the window so the heat goes outside
A twenty two thousand dollar box of electronics that is broken out of the box, that required the guy to do a sketchy electrical workaround to get partially working, that he is going to install in a window… and he’s happy about it?
In case you didn’t notice it, the delivered unit is different than the picture on the website. They had to install 2 power supplies instead of 1 and had to modify the case to fit. Also, if you didn’t notice, the LCD/Phone thingy in the front has been replaced by … a piece of cardboard spray painted black. Wonderful.
You could maybe chalk this up to a careless Fedex postman, but when you’re shipping something that costs as much as a mid-sized sedan, how bought putting a little more effort into packing? Dell and HP can ship bigger and heavier servers across the world without this kind of problem.
The unit had to hit its huge power draw increase by putting dual EVGA consumer grade power supplies in the unit. We’re talking almost a 75 amp load (6*1500/120), disregarding power factor. He could very well overload the circuit panel and trip the main breaker for the house.
Let’s take a look inside this guy.
This is from an earlier version of the Minirig (note the single power supply) This is apparently from an earlier FPGA but it will give you a good glimpse at what kind of craftsmanship you can expect from a computer that is half the average household income in the United States.
Consumer grade PSU and cheap USB hubs glued to the inside case.
Electrical tape and random velcro glued to the insides
A closer look at the USB hubs. Plugs are hot glued to stay secured.
Electrical tape everywhere, splices and voided hardware are the theme.
You can view the entire album here.
Despite all that, this thing can still mine bitcoins and it should be profitable. Keep in ind that many people jumped in on the preorders a year ago when bitcoins were still hovering around $6.50 per. Meaning customers paid 1562 bitcoins for that particular piece of shit, which at today’s value is $156,200. Aston martin money. How long will it take them to make their money back (as apposed to just hanging on to them)? If the difficulty didn’t change, they would make 37 bitcoins a day and recoup the initial investment in 124 days. Difficulty is jumping pretty much 20% every 12 days or so, so in the next week before adjustment, they’ll make 259, the next 12 days 369, the next 12 days 312, then 256, then 213, etc.
So by day 127, they’ll be halfway to breaking even, but by day 151 they’ll be making less than 5 bitcoins a day, and even if difficulty stopped rising at that point(which it won’t), it would take another 435 days for a total of 586 days to break even. If difficulty kept rising at the same pace, by day 200 they’d be making 2.4 bitcoins per day, and it would take 1024 days to break even with no difficulty increase. Assuming 25 cents per kw/h, and $100 a bitcoin, it would cost 0.43 of a bitcoin per day in electricity which means the unit would no longer be profitable on a power usage basis by day 307, at which point it will have produced 2620 bitcoins.
Bear in mind this is only for the first few units, and that’s running 24/7 pumping out around 24,000 BTU, so yes, medical bills from heat stroke will be on top of that.
But Alas, the chips don’t run nearly as well as they’re supposed to, frequently running too hot and giving multiple hardware failures. Coindesk noted in one of the first ever runs of the Minirig by hosting provide gigavps that it was running much too hot and erroring out.
At the time of posting, gigavps warned that the unit would be repeatedly shut down while ckolivas, who was assisting, modified the machine’s software to optimise performance. After some tweaking, the device was said to have been left to run continuously for two hours, and was shown to have an average hash rate of 478.1 GH/s. As you can see in the table below, ASIC number four (of a total of eight hashing chips) ran significantly hotter (86 degrees) and consequently gave the highest hardware (HW) error rate.
So, what happens if you just decide you don’t want this, you don’t want to wait over a year to get a $22,000 broken piece of shit? Nothing, because BFL won’t let you cancel your preorder because they’re now “shipping”, i.e. they sent out one unit to their own company shill.
Which is of course illegal regardless of what Butterfly Labs may say.
So in summary: Don’t buy anything from Butterfly Labs … ever.
submitted by borderpatrol to Buttcoin [link] [comments]

[WTS] BFL Jalepeno 7.5ghash/s barely used. Make an offer in ($)

I want to sell: one jalapeno BFL bitcoin miner (used for one week) for: make an offer in USD coin values dont make sense to me. we'll cross that bridge when we get there I will only ship to the continental USA
submitted by ReiXgh to BitMarket [link] [comments]

[WTS] 30 GHASH BFL Miner $3000/24btc

So I've been having some rough times lately. Need money for car repairs/general bills.
I finally got this BFL bitcoin miner I ordered back in September, and while the $30 a day is nice, I could use a bigger chunk of change for now. The going price seems to be ~$3000 (24btc) on ebay. Selling for bitcoins is going to be somewhat sketchy for both of us, but I would prefer that over being scammed on Paypal or something else.
If we can, I would like to use a multi-sig escrow transaction. Blockchain doesn't seem to be allowing them even though they have an information listing related to it:
Does anyone know how to complete these? and would they also be interested in the unit? Once the initial transaction gets relayed to the network I can go ahead and point the miner to your desired pool, and I will set up shipping it by FedEx asap (from Florida).
submitted by CoinSpeculator to BitMarket [link] [comments]

So Wired is basically burning the bitcoins generated from their BFL miner

So Wired is basically burning the bitcoins generated from their BFL miner submitted by the_viper to Bitcoin [link] [comments]

BFL now selling a 500 GH/s Bitcoin Miner ... for $22,484.

BFL now selling a 500 GH/s Bitcoin Miner ... for $22,484. submitted by richielaw to Bitcoin [link] [comments]

investing in two BFL 50 GH/s Bitcoin Miner

Hi miners..
I am fairly new to Bitcoin and mining process so basically I am a big newb with some money to invest.
I am thinking of buying 2 x 50 GH/s Bitcoin Miner from BFL since they say that they have them in stock to ship right away (I hope so). That would be a $5000 investment + 30% in importing fees for me so I was wondering what do you guys think? is it worth it? When could I expect ROI? By some predictions (which I'm very skeptical about) it should be in 3 to 4 months.
submitted by b_Man to BitcoinMining [link] [comments]

[uncensored-r/Bitcoin] Are the old BFL 5gh miners collectors items yet?

The following post by Maxxit is being replicated because the post has been silently greylisted.
The original post can be found(in censored form) at this link: Bitcoin/comments/7ogh87
The original post's content was as follows:
submitted by censorship_notifier to noncensored_bitcoin [link] [comments]

is DragonMint the new BFL? All the newbies better just buy bitcoin instead of a miner. /r/Bitcoin

is DragonMint the new BFL? All the newbies better just buy bitcoin instead of a miner. /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

[US-CA][H] 5+GHs Bitcoin Miner (BFL Jalapeno) [W] Bitcoins or Paypal

I have a Bitcoin miner that I'd be willing to part with. I want to sell this model of Bitcoin miner. It is plug in and play, just grab the software/drivers from the Butterfly Labs Website and you will be making Bitcoins in no time. The miner only has about a month of wear. It will not be shipping with a PSU however, as I need it's PSU for another miner, but it just takes a standard 13V/6A DC PSU. I'm looking for ~40$ plus shipping. The miner tends to mine between 5 and 7 GHs.
I look forward to doing business with my fellow Redditors!
submitted by VivaLaPandaReddit to hardwareswap [link] [comments]

I got scammed on Bitcoin Classifieds buying a BFL miner, is there any way to get it back? And what can I do in the future to prevent it? Please help me r/bitcoin

I should of known it was too good to be true. I was blinded by the idea of getting something so amazing, I overlooked the obvious signs.
Here's a link to the post I was looking at (the review was not there when I paid the btc):
Here is my email conversations with the person:
I googled the information that this person had given me (phone number and name) and I came upon a skin care buisness (A SKINCARE BUSINESS! I don't know why I thought 'oh, must run a skincare business and the bfl miner is just too much to manage'). I used blockchain to track the flow of where my bitcoins went, but there are so many forks, that I don't know which path to go down. I have no idea what to do (if there is anything that can be done...). What should I have done, so this does not happen to me or anyone else who reads this post?
Thank you for taking the time to read my post, I appreciate it more than I can put into words.
submitted by Skull1234567 to Bitcoin [link] [comments]

BFL 25 GH/s Bitcoin Miner? Has anyone receive their order...

I'm looking to pick up the BFL 25 GH/s Bitcoin Miner but been hearing they take forever to ship.
Wondering if anyone who order got theirs and if it worth it for a beginner miner with making a + return on purchasing this miner.
I entered the stats into a Bitcoin calculator and I would break even in a week if I had the miner now and at these current prices and diffculty.
submitted by cheeeeeburger to BitcoinMining [link] [comments]

[WTS] BFL 10.1 GHs Jalapeño & 60 GHs Singles Bitcoin Miners

Recently upgraded BFL Jalapeño to 10.1 GHs. ($600) Also have 4x BFL 60GHs Singles for sale as well. ($1800)
submitted by jat0369 to BitMarket [link] [comments]

Butterfly Labs BFL 5 GHash ASIC Bitcoin miner - Tested and working at 5GH/s

Butterfly Labs 5GH/s ASIC Bitcoin Miner.
Let run for a few hours as quality check and, got 5.3GH/s on average.
INCLUDES Free Coffee Mug 5 GH/s Bitforce SCTM (ASIC) Miner USB to mini USB Cable Power Adapter (110v-240v) International ORIGINAL BOX All BitForce SCTM product warranties.
Circuit Board: Lifetime of the product line or minimum of 1-year
Fan & Power Supply: 1-year Warranty
FREE Shipping
To purchase: send payment to this address - 1AvbHuWbQneAxzHy1XBpvk16T8KeyXJBek and pm me afterwards.
submitted by fracta15 to BitMarket [link] [comments]

The first BFL Jalapeno Bitcoin miner in the wild. They are now shipping. Prepare for a new era in Bitcoin mining.

The first BFL Jalapeno Bitcoin miner in the wild. They are now shipping. Prepare for a new era in Bitcoin mining. submitted by JeffGarzikSucks to Bitcoin [link] [comments]

Is it worth setting up my BFL single miner? /r/Bitcoin

Is it worth setting up my BFL single miner? /Bitcoin submitted by BitcoinAllBot to BitcoinAll [link] [comments]

[WTS] BFL Refurb Jalapeño Bitcoin Miner.4 BTC

Refurbished Butterfly Labs Jalapeño bitcoin miner. Hashes at 3.7Ghz. Shipping included. Ships next business day.
submitted by jat0369 to BitMarket [link] [comments]

So Robert McMillan @bobmcmillan published the public key for the BFL miner at @wired on twitter: 1BYsmmrrfTQ1qm7KcrSLxnX7SaKQREPYFP Say they have 3 bitcoins so far.
Looks like they decided not to destroy the coins after all. I was happy to see that @bobmcmillan also retweeted my suggestion to @wired have him do an in depth piece on how BTC is used for donations to charity.
submitted by steffenfrost to Bitcoin [link] [comments]

TIL BitcoinX (bitcoin profit calculator) was a sham site for BFL to sell their miners

submitted by frankenmint to Bitcoin [link] [comments]

Butterfly Labs BFL 60 GH/s Single SC ASIC Bitcoin Miner is for sale on for Bitcoin and Litecoin

Butterfly Labs BFL 60 GH/s Single SC ASIC Bitcoin Miner is for sale on for Bitcoin and Litecoin submitted by duetschpire to cryptothrift [link] [comments]

BFL Bitcoin ASIC Teardown I am easily amused -- BFL Bitcoin Mining Rig BFL 5 GH/s Miner Demo T4D #84 - Pt 2 Bitcoin Mining, BFL ASIC vs FPGA vs GPU vs CPU How to setup a 60 GH/s Butterfly Labs BFL Single SC ASIC Miner

USB Bitcoin Miner; SP20 Jackson; Software; Pools; Cloud. Hashflare Review; Genesis Mining Review; Buying A BFL 25ghs Miner. I'm thinking about buying a BFL 25GH/s miner. I also emailed them about when I should anticipate the arrival of my miner, and they said it should be somewhere around mid-july. Do you think that this technology will become obsolete by then? While I expect the difficulty to ... Currently the best miner on the market for mining Bitcoin is the Antminer S19 Pro by Bitmain. You can read my review of it here. Is It Worth to Mine Bitcoins? Bitcoin mining has become more of a profession than a hobby these days. If you want to mine profitability you’ll need to invest heavily in equipment, get cheap electricity, and locate yourself in a cool area since miners tend to heat ... Miner CGMiner wurde entwickelt, um mit Grafikkarten von AMD zu arbeiten. Wenn Sie einen PC oder eine Farm mit NVIDIA-Grafikkarten besitzen, ist es besser, den Dual Miner von Claymore zu verwenden. Selbst CGMiner kann Debug-Informationen zur Verfügung stellen, den "Problem" -Arbeiter automatisch deaktivieren, über einen Proxy arbeiten und die Strategie Load Balance und Round Robin verwenden ... Butterfly Labs BFL Little Single BF0050G ASIC Bitcoin BTC SHA-256 Miner 60GH/s. $35.00 +$5.00 shipping. Make Offer - Butterfly Labs BFL Little Single BF0050G ASIC Bitcoin BTC SHA-256 Miner 60GH/s. Butterfly Labs Jalapeno SHA-256 Bitcoin ASIC Miner - Original Packaging. $150.00 +$25.00 shipping. Make Offer - Butterfly Labs Jalapeno SHA-256 Bitcoin ASIC Miner - Original Packaging. Butterfly Labs ... USB Bitcoin Miner; SP20 Jackson; Software; Pools; Cloud. Hashflare Review; Genesis Mining Review; BitForce Sha256 Mini Rig. BFL’s $15,295 Mini Rig - 25 Ghash/s. About one year ago began the frantic race to begin acquiring motherboards, power supplies and GPUs for the purpose of mining which was fairly profitable at the time. Specifically, mining operators were scrambling to source the higher ...

[index] [26032] [5980] [6059] [21726] [23955] [21002] [48913] [12640] [20601] [44018]

BFL Bitcoin ASIC Teardown

In this video I take a look at Bitcoin mining hardware. I compare the performance and power usage between BFL SC ASIC vs FPGA vs GPU (Nvideo GTX 560 Ti and AMD ATI Radeon HD 8950) vs CPU (Intel ... ThaFresh's ultimate Bitcoin Mining rig, featuring hardware from Butterfly Labs - Duration: 1:21. Mark English 28,188 views. 1:21 . Noob's Guide To Bitcoin Mining - Super Easy & Simple - Duration ... I'm new to bitcoin mining so be nice! I purchased to BFL asic miners for $20 off of ebay. Combined hash power is 120Gh/s. I have an antminer s5 coming. Anyways here's my video on how I set ... I am easily amused -- BFL Bitcoin Mining Rig - Duration: 0:30. Mqrius 14,058 views. 0:30. The D-C-G Trick : What Famous Bands Did With Easy Chords! - Duration: 28:41. Song Bike - jkehew1 ... T4D #84 - Pt 2 Bitcoin Mining, BFL ASIC vs FPGA vs GPU vs CPU - Duration: 28:50. mjlorton 63,579 views. 28:50. What is ASIC? - Duration: 3:31. Debopam Pal 44,133 views. 3:31. What’s Inside ...