Why paint it black, this thing will be glowing red in a few hours. It will set your wife's cat on fire.
http://www.youtube.com/watch?v=u6d8eKvegLI
Topic: wild and unsubstantiated speculation about BFL's power woes - page 2. (Read 6345 times)
http://www.youtube.com/watch?v=u6d8eKvegLI
I feel that first batch chips (June) going to generate the worst performed rigs and they might revise the design on later batch of chips to get better power/thermal performance
Sweet, so ten+ months of waiting and early BFL ASIC investors get partially functional pre-production prototypes. Nice.
Normally first generation hardware users will become lab rats
Avalon team is awsome, so far not so much complains about their first batch units, very impressive!For the awesome bank early BFL investors would've have gotten had BFL met nearly any of it's promises then that would've been fine. For them to ship half baked junk now on top of being 5+ months late is ridiculously scammy. Rewards are halved and difficulty is multiplied. This is the kind of stuff that keeps lawyers in new BMWs.
I feel that first batch chips (June) going to generate the worst performed rigs and they might revise the design on later batch of chips to get better power/thermal performance
Sweet, so ten+ months of waiting and early BFL ASIC investors get partially functional pre-production prototypes. Nice.
Normally first generation hardware users will become lab rats
Avalon team is awsome, so far not so much complains about their first batch units, very impressive! 
Is there any truth to the rumor that you cannot use the BFL Single as a coffee warmer because it melts starbucks cups? Someone said that this was the problem that most of the BFL engineers are focused on right now. That person told me that the solution they came up with was to email Starbucks and ask them to change their cups to asbestos. They are waiting for starbucks' decision before looking to other solutions.
I'm going to make a wild guess here and speculate that they ran all their pre-production SPICE simulations ...
The fact that only recently "discovered" the real power consumption of their ASICS shows that they never had a working prototype up until now.
What were those fuckers supposed to ship in October 2012 (their original shipping date)
? They had nothing back then. Literally nothing! Stringing customers along for months ...The only difference between BFL and bASIC is that BFL has kept things together long enough to get to this point, where they have something to show.
How do you know this?
They could have an FPGA there working for all we know. Until someone can verify ASIC-like consumption and ASIC-like performance, we are just speculating.
I'm going to make a wild guess here and speculate that they ran all their pre-production SPICE simulations ...
The fact that only recently "discovered" the real power consumption of their ASICS shows that they never had a working prototype up until now.
What were those fuckers supposed to ship in October 2012 (their original shipping date)
? They had nothing back then. Literally nothing! Stringing customers along for months ...The only difference between BFL and bASIC is that BFL has kept things together long enough to get to this point, where they have something to show.
I feel that first batch chips (June) going to generate the worst performed rigs and they might revise the design on later batch of chips to get better power/thermal performance
Sweet, so ten+ months of waiting and early BFL ASIC investors get partially functional pre-production prototypes. Nice.
I feel that first batch chips (June) going to generate the worst performed rigs and they might revise the design on later batch of chips to get better power/thermal performance
They may have made the power lines on the PCBs too thin. Even a milliohm of resistance between the power supply and the chips causes problems when you try to run 60+ amps worth of chips.
Thing is if you're "losing" power somewhere, that must be converted into heat. If the device is pulling 190 Watts instead of 60, it should be fairly obvious exactly where that energy is being lost. You can't lose that much to resistance in traces, the whole thing would simply melt and break down after a second or 2 of running. What you do get is a voltage drop the more current you're trying to cram through, but most of that power has to be lost to leakage in the chip, the power circuitry and DC-DC converters are unable to dissipate that kind of heat.
Either BFL are stupid or they are playing stupid. Any engineer working on this would have known exactly where the power is going within 5 minutes of turning it on.
Reminds me of that GH/s vs power consumption of the BFL chip chart I saw posted once (not sure if it was authored by BFL)....it was LINEAR. I'm sorry but it doesn't work like that. There will be a sweet spot in terms of efficiency somewhere well below the maximum clock/hash rate, anything more than that will start to use exponentially more power (as anyone who uses GPUs knows).
(been lurking here a long time, just wasn't able to post)
7) BFL has said they are re-designing the boards to improve the power situation. To me this is unclear what they are doing. I think Josh said something about using 2 regulators instead of 1 - but I could have that wrong.
They may have made the power lines on the PCBs too thin. Even a milliohm of resistance between the power supply and the chips causes problems when you try to run 60+ amps worth of chips.
There is an option for bfl that I implied before:
1. Post some delivering pics (a stunt like lukeJr)
2. Tell preorder upgrade people to send in their old FPGA singles and rigs
3. Wait till old gear arrives unpack it do some tests with it.
4. Switch old gear payed by customers online at a pool of choice
5. Evaporate from earth with preorder moneys, old already paid for FPGA gear, and a half finished ASIC in hand.
6. Be rewarded with a scammer tag in bitcointalk
7. No other harm will be done to you. Live on with your life mining happily ever after.....
8. Buy some Avalon ASIC or Asicminer shares.
1. Post some delivering pics (a stunt like lukeJr)
2. Tell preorder upgrade people to send in their old FPGA singles and rigs
3. Wait till old gear arrives unpack it do some tests with it.
4. Switch old gear payed by customers online at a pool of choice
5. Evaporate from earth with preorder moneys, old already paid for FPGA gear, and a half finished ASIC in hand.
6. Be rewarded with a scammer tag in bitcointalk
7. No other harm will be done to you. Live on with your life mining happily ever after.....
8. Buy some Avalon ASIC or Asicminer shares.
I don't know if it's possible to quantify the damage BFL have done to the Bitcoin mining environment, but I have no doubt it's huge.
This, my friend, you are so right. I'm crying thinks about it.I will not accept they turn out being profitable while early investors get back a mere 25-50% of their investment in X many years.
There is only one solution a this time, Forget the shipment and mine however you can with this batch of failed chip, Use liquid-nitrogen if so needed ! Get a rent neat a powerplant providing 150KW , And pay back customers what you can.
How BFL promised to begin shipping in late October or early November 2012 is beyond comprehension. All the promises made to date regarding power use and performance have been based on simulations that now have proved to be wildly optimistic.
I still can't believe how people fell for it after their previous history of over-promising. 1GH/s and 19.6W and $500, remember?
Wheres Josh and his rebuttals? I miss Josh the troller.
Hmmm. Josh's most recent comments in shoutbox imply that the problem could be with the chips.
What a surprise.
Who could ever expect...
That's surprising. 
Hmmm. Josh's most recent comments in shoutbox imply that the problem could be with the chips.
Minor nitpick:
Typical circuit spec for a residential electric stove is 240V @ 50A. That works out to 12 kW.
(Not that you'd rip out the stove and plug in a mini-rig...what are you going to cook on? A campstove?
)
120v x 20A USA You're kitchen might have a 2400w rated socket for your cooker, everywhere else will be 1800w.
Typical circuit spec for a residential electric stove is 240V @ 50A. That works out to 12 kW.
(Not that you'd rip out the stove and plug in a mini-rig...what are you going to cook on? A campstove?
)Um, sounds like you can just use the mini-rig.
It is pretty obvious now that they don't know what they are doing... like the first season of Gold Rush
BFL probably filmed the past 10 months and will be on the next season of that show
BFL probably filmed the past 10 months and will be on the next season of that show
at least on gold rush they had god on their side.
Minor nitpick:
Typical circuit spec for a residential electric stove is 240V @ 50A. That works out to 12 kW.
(Not that you'd rip out the stove and plug in a mini-rig...what are you going to cook on? A campstove? )
120v x 20A USA You're kitchen might have a 2400w rated socket for your cooker, everywhere else will be 1800w.
Typical circuit spec for a residential electric stove is 240V @ 50A. That works out to 12 kW.
(Not that you'd rip out the stove and plug in a mini-rig...what are you going to cook on? A campstove?
)If it netted me $10k a day I'd dynamite my stove out of the way for access to that circuit
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