|
Desolator
|
 |
October 04, 2012, 01:04:47 PM
Last edit: October 10, 2012, 04:41:48 AM by Desolator |
|
well the small asics like the bfl jalepeno are usb powered
I think BFL has already verified many times that that's not true. It's completely idiotic since USB power fluxuates and is limited and varies from computer to computer. It's the worst way to run a high end cbhip imagineable and 2.5W could never run a Jalapeno. |
|
|
|
|
|
|
|
|
|
|
|
|
|
There are several different types of Bitcoin clients. The most secure are full nodes like Bitcoin Core, which will follow the rules of the network no matter what miners do. Even if every miner decided to create 1000 bitcoins per block, full nodes would stick to the rules and reject those blocks.
|
|
|
Advertised sites are not endorsed by the Bitcoin Forum. They may be unsafe, untrustworthy, or illegal in your jurisdiction.
|
|
|
|
|
|
|
|
puck2
|
|
October 04, 2012, 03:17:39 PM |
|
well the small asics like the bfl jalepeno are usb powered
the bfl single sc and the bASIC have there own barrel connector for power
Thanks for the info. What is the best way to power via a barrel connector? Will each BFL Single/bASIC need a separate AC adapter? |
|
|
|
|
bitpop
Legendary
 Offline
Activity: 2912
Merit: 1060
|
|
October 10, 2012, 04:25:00 AM |
|
|
|
|
|
|
Desolator
|
|
October 10, 2012, 05:03:05 AM |
|
btw in case you missed my other post, if you think you don't need a powered USB hub for the Jalapenos, you do. Standard board USB power isn't good enough for like 4 different reasons. You could maybe get away with a PCI-E controller to help voltage dips, interference, unknown power limitations, etc but why not just go external?
For the singles, probably not unless you're actually out of them, as I would expect them to draw almost nothing over the USB power since it's 2.5W max and the singles are like 60 or 80W or whatever.
|
|
|
|
|
|
firefop
|
|
October 10, 2012, 11:32:19 AM |
|
I've got a mondohub - works great. manual buttons are nice (they control if that port gets external power or not) - and having LEDs attached to each port switch is great for identifying if you've got a power delivery problem.
|
|
|
|
|
|
|
ralree
|
 |
October 10, 2012, 07:37:26 PM |
|
|
1MANaTeEZoH4YkgMYz61E5y4s9BYhAuUjG
|
|
|
|
|
|
Morblias (OP)
|
|
October 10, 2012, 08:06:15 PM |
|
You will soon find out why I stopped buying cheap electronics from China. Good luck  |
Tips / Donations accepted: 1Morb18DsDHNEv6TeQXBdba872ZSpiK9fY
|
|
|
bitpop
Legendary
Offline
Activity: 2912
Merit: 1060
|
|
October 10, 2012, 11:38:40 PM |
|
Dont ever use a usb 3 for usb 2 devices. usb 3 still has issues due to cheap chipsets.
|
|
|
|
MoonShadow
Legendary
Offline
Activity: 1708
Merit: 1007
|
|
October 10, 2012, 11:49:01 PM |
|
I don't understand this attraction to usb, at least not for more than a single unit. If one intends to accumulate a number of these stand alone hashing devices, there are much better interfaces to use. Firewire comes to mind immediately. And before anyone complains about not having firewire on their PC, if you can invest gobs of money into a growing ASIC farm, you can buy a $40 firewire card off Ebay.
USB has it's place, certainly. But I would think that it wouldn't take very many of these devices to overwelm even a 480 Mb/s serial bus, considering the relatively high overhead penalty that a spider's web of powered hubs is going to introduce into such a plan.
|
"The powers of financial capitalism had another far-reaching aim, nothing less than to create a world system of financial control in private hands able to dominate the political system of each country and the economy of the world as a whole. This system was to be controlled in a feudalist fashion by the central banks of the world acting in concert, by secret agreements arrived at in frequent meetings and conferences. The apex of the systems was to be the Bank for International Settlements in Basel, Switzerland, a private bank owned and controlled by the world's central banks which were themselves private corporations. Each central bank...sought to dominate its government by its ability to control Treasury loans, to manipulate foreign exchanges, to influence the level of economic activity in the country, and to influence cooperative politicians by subsequent economic rewards in the business world."
- Carroll Quigley, CFR member, mentor to Bill Clinton, from 'Tragedy And Hope'
|
|
|
bitpop
Legendary
Offline
Activity: 2912
Merit: 1060
|
|
October 10, 2012, 11:54:05 PM |
|
And how do you explain firewires incapability to hub?
|
|
|
|
Unacceptable
Legendary
Offline
Activity: 2212
Merit: 1001
|
|
October 11, 2012, 12:01:08 AM
Last edit: October 11, 2012, 03:48:56 AM by Unacceptable |
|
I have several of these Belkin hubs,they are powered up to 2.5 amps @ 5 volts.  Belkin F5U101,4 ports,5 volt @ 2.5 amps. So in theory I could run at least 2 Jalapeno's on each hub. But yeah,USB supplying that much power for a device is not a good decision.I would prefer a wallwort myself or get some cables from Cablez  I shouldn't be needing them,I'm going to upgrade my order to a 30gh unit instead.Maybe I'll get a Jalapeno or two later just for the novelty  |
"If you run into an asshole in the morning, you ran into an asshole. If you run into assholes all day long, you are the asshole." -Raylan Givens Got GOXXED ?? https://www.youtube.com/watch?v=9KiqRpPiJAU&feature=youtu.be"An ASIC being late is perfectly normal, predictable, and legal..."Hashfast & BFL slogan  |
|
|
|
jjshabadoo
|
|
October 11, 2012, 12:11:23 AM |
|
What about just to communicate with devices and not for power purposes?
Do people think a decent laptop with a quad CPU can handle like 25 of the 54 or 60 GH units ?
Can you plug in like 2-3 hubs to one laptop ?
|
|
|
|
|
bitpop
Legendary
Offline
Activity: 2912
Merit: 1060
|
|
October 11, 2012, 12:12:53 AM |
|
Of course
|
|
|
|
|
Mobius
|
|
October 11, 2012, 12:40:30 AM |
|
What about just to communicate with devices and not for power purposes?
Do people think a decent laptop with a quad CPU can handle like 25 of the 54 or 60 GH units ?
Can you plug in like 2-3 hubs to one laptop ?
With cgminer yes |
|
|
|
|
MoonShadow
Legendary
Offline
Activity: 1708
Merit: 1007
|
|
October 11, 2012, 04:14:15 AM |
|
And how do you explain firewires incapability to hub?
Firewire is a daisy chain serial bus, it doesn't need to hub. The second unit plugs into the second firewire port on the first unit. Also, firewire uses a much higher power bus voltage, of 16 volts nominal. It could handle a small asic on it's own without powered hubs. Furthermore, you can now get firewire switched hubs, so that complaint is moot. |
"The powers of financial capitalism had another far-reaching aim, nothing less than to create a world system of financial control in private hands able to dominate the political system of each country and the economy of the world as a whole. This system was to be controlled in a feudalist fashion by the central banks of the world acting in concert, by secret agreements arrived at in frequent meetings and conferences. The apex of the systems was to be the Bank for International Settlements in Basel, Switzerland, a private bank owned and controlled by the world's central banks which were themselves private corporations. Each central bank...sought to dominate its government by its ability to control Treasury loans, to manipulate foreign exchanges, to influence the level of economic activity in the country, and to influence cooperative politicians by subsequent economic rewards in the business world."
- Carroll Quigley, CFR member, mentor to Bill Clinton, from 'Tragedy And Hope'
|
|
|
bitpop
Legendary
Offline
Activity: 2912
Merit: 1060
|
|
October 11, 2012, 04:25:40 AM |
|
And you don't think daisychained firewire gets "overwhelmed"?
|
|
|
|
|
ralree
|
|
October 11, 2012, 05:17:16 AM |
|
You will soon find out why I stopped buying cheap electronics from China. Good luck I've gotten LOTS of cheap electronics from China, and I've never had a problem. It's not that hard to implement USB (all of the USB you're using right now was almost certainly made in China). I'll be very surprised if these hubs don't work. If they don't, $10 loss. No biggie . What did you get that didn't work? |
1MANaTeEZoH4YkgMYz61E5y4s9BYhAuUjG
|
|
|
|
