Yes, someone predicted it, but it has to be said; you should give ubuntu a try.

I want to buy a stock reference cooler for a 5850.  Location Belgium
Ideally its from a Powercolor, but thats not necessary. If you have a reference 5850 that broke down, please post or PM.

BTW, I dont even need the shroud, I do need the baseplate, the copper cooler, fan and mounting screws. In case you are wondering why, I have a 5850 that died but is still covered by warranty, but I massacred the original cooler.

No it isnt, not for an unreleased product. There are a million ways butterfly labs could handle it, by offering rebates or refunds.  But think about it, how many people do you think would cancel their preorder if this turns out to be real, but with 10% lower than projected performance? My guess: no one. Im pretty sure most will in fact order more,  thats how scammed they would feel. Lets keep in mind, if BFL only  achieve 50% of their claimed performance at double the powerconsumption, this will still be about the best mining product in the market. It would be nonsensical for BFL to undermine (no pun intended) their credibility by deliberately overpromising like that, if they are indeed actually sitting on by far the best product in the market. It makes no sense. 

So either butterfly labs is a real scam and has nothing (or a 486 under that heatsink with bogus software making fake proofs), or they are legit. Something inbetween, like were I drew the line for the bet,  just is not  gonna happen.

I know, its just to make sure they wouldnt sell a GPU based solution, which could easily achieve 1MH/$, but at far higher power consumption obviously.


If Butterfly wants to take the bet with the performance as currentlyclaimed, thats their choice, but assuming they havent gotten their software ready and fully optimized yet, think its fair to give them some leeway without labeling it a scam. Remember, half this thread is about fake photo's, non existing business registration what not. If it turns out everything is legit but they miss their performance estimates by 20% or whatever, thats something entirely different as them never shipping a single product and running of with the money never to be heard of again (which is what most here expected).

Show me a fancy FPGA solution that provides >1 MH/$ (and better than 10MH/W). If you call that a scam, I want to be scammed

Yeah, I wouldnt bet $20.000 there either (or anywhere else for that matter), but Id be surprised Goat would actually put up 100 BTC, let alone 1000 or 10000 and I suspect the butterfly lab guys will gladly match a few 100. Well worth the risk IMO.

Anyway, Ill formulate a bet. How is this as bet:

The Butterfly Labs "Bitforce miner" shown here:
http://butterflylabs.com/
is just a scam, not a real product under development.

Butterfly Labs will not ship a single self designed bitcoin mining "bitforce 256" product in the next 6 months to paying customers

If they ship a single BitForce SHA256 board to a paying customer within this time, and its verified to produce more than 500MH/s while consuming less than 50 Watt, the above statement is deemed false, and Butterfly labs is not a scam.

Butterfly labs will also not let anyone independently verify their custom hardware is real and works. If they do let someone independent, recommended by bitcointalk forum, test and verify their claims, and this person acknowledges the hardware is real and produces results that are roughly inline with the performance claims made on Butterfly's website, it is also not considered a scam and this statement is considered false.



Yes, i cut their projections by half, underdelivering on promises is not the same as being a scam.

You can create your own bets.

On linux Ive not been able to get it to work, not with the proprietary drivers at least. One or the other card would work, but not both.
With windows (vista and 7), it does work effortlessly.

Place your bet here goat:
http://betsofbitco.in/

I havent seen it. But Ive booted linuxcoin only once so far. And its still running. I havent configured it for headless  and removed the monitor since booting, so I hope it keeps running for some time .

Are you using "screen" ? If not, Id give that a try. It runs the console in a 'session', that you can attach and detach over ssh. install it with

and run it with


To detach the screen press control+A and then D. To reattach,


or


if its already attached elsewhere.
well, you probably know all that already but someone else might not

IF it is legit, I will be selling.
My GPU's as fast as I can.

This thread is getting ridiculous. Bottom line is that the claims are bold, but not impossible, and it doesnt look like a simple scam, though until proven otherwise, its clear the claims may be... optimistic.

As for the price being too low; without knowing their fixed and variable costs,  or their capacity, you cant conclude anything from it. Its not because "the market would bare more", that their pricing is per se nonsensical; their business plan may require volumes they wouldnt reach at the maximum price "the market would bare". In fact, such an approach makes perfect sense, if you would invest a non trivial amount in such a product, knowing that a competitor with a better product might make your product almost unsellable in 12 or 6 months or less. You would want to sell as much as you can, rather than sell for as much as you can.

So why doesnt everyone just take a deep breath and wait to see what happens.

Won my first bitcents playing poker (freerolls ). I had just began mining but not found any blocks yet. Now Im getting my coins from mining (rather minor amounts with just 3 videocards), by selling stuff for bitcoins, playing poker.. I tend to spend most of what I earn, its like that with euro's and no different with bitcoins lol.

I would be very uncomfortable running my cards at 85+C 24/7. It wont instantly kill the cards, but electromigration may wear them out quite fast if you are unlucky. Everyone has their personal limit, I know Im anal about temps, but 70C is my feel good limit and Im no where near that. My 5850s are ~60C @ 900 MHz, my 5870 is even sub 50C (though admittedly, because of an absolute overkill Spitfire cooler)



All of them are dead silent. (5850 twin frozr stock cooler @45%, the other 5850 has a 6 euro Battle-axe cooler).

Even more importantly, run GPU-Z and have  a look at your VRM temperatures under load. Depending what kind of VRMs and VRM cooling is used, they can be as high as 100+C or as low at 60C. Not all cards support VRM monitoring, but definitely check if yours do, because overheating VRMs are probably the number 1 cause of dead gpu's.

If the card does not support VRM temp monitoring, that means a non reference design, and Im under the impression most non reference cards have VRMs dont overheat as easily a reference cards, but thats just an impression I have. If you want to be sure, consider buying an IR thermometer.

I think it would be. Or make two colums, one for BTC one for NMC so its easy to see. While Im at it, perhaps email notification for new found (BTC) block would be nice. Or automated twitter feed or something.  I keep clicking that page to see if we finally found one

Thats what I meant, why he switched to bitminter client  (not the pool). With a farm like that, cgminer seems like an obvious choice.

Just curious, why did you switch to bitminter? As much as I like the app for tech unsavvy users who want to run a miner on their everyday desktops without having to struggle to get anything running, I dont see the point of running it on headless dedicated machines. Particularly when you have a farm as big as yours, I wouldnt dream of not using cgminer with failover pools.

hotglue is plastic. Its non conductive. And you can always remove it. Its perfect for stuff like that, or for fixing GPU ram heatsinks that otherwise fall off (putting the glue on the sides obviously as its also a very poor themal conductor). Hot glue and duct tape will let you fix almost anything

What miner application are you using? 600 MH seems very very low for that config. A big short term variance is normal though, its just luck.
Perhaps you should give bitminter a try, see my signature. Its a one click miner, and the pool currently gives you extra bitcoins rather than taking a significant %. Its also one of the fastest miner apps.

I figured that much, but thanks for the long answer


You're such a fountain of wisdom! That was the one question lingering in my mind, what that "u" meant exactly. Intuition told me it was a good proxy for performance.

BTW, 30 shares per minute, so 5 per gpu ?  Seems lowish to me. Have you underclocked and undervolted those 5970s? Thing is, Im getting exactly 5 share per minute per core on average with my considerably cheaper (*) GPU cores (and not even seriously overclocked due to linux limitations).

(*) okay, they would have been cheaper if I wasnt so anal about keeping temps low. If I factor in the cost of that spitfire and the other coolers, its not that cheap anymore, but the ease of mind that 46C peak temperature on the 5870 @ 900 MHz  gives me is priceless .