[Announcement] Block Erupter USB

[-ck]

Not quite, there is no module requirement if you are mining with cgminer 3.2.1+ as it uses direct usb communication and will unload that module you just recommended.

Oh, thanks. Is there a reason for using direct USB communication? More efficient?

Yes, to bypass one layer between cgminer and the device, and give us more control over it. It has allowed us to shave a lot of CPU off by doing so. It is unfortunately a lot more work, and keeps revealing to us interesting hardware limitations that the drivers paper over, but that is often the case that the better solution takes more effort.

[Henchman24]

Not quite, there is no module requirement if you are mining with cgminer 3.2.1+ as it uses direct usb communication and will unload that module you just recommended.

Oh, thanks. Is there a reason for using direct USB communication? More efficient?

Yes, to bypass one layer between cgminer and the device, and give us more control over it. It has allowed us to shave a lot of CPU off by doing so. It is unfortunately a lot more work, and keeps revealing to us interesting hardware limitations that the drivers paper over, but that is often the case that the better solution takes more effort.

Hotplug is sweet!  It worked perfectly on the first try.  Thanks again, ckolivas and kano!!

[SoggyLettuce]

Would this hub work in the 4 port version? http://www.amazon.com/gp/product/B005NGQWL2/

[elasticband]

no the design of the hub could not fit 4 USB's, look at some of the pictures of how they are set up and how much space is needed

[elasticband]

the 4 port slim could probably take 3 sticks, the other 4 port you should could probably only take 2.

[SoggyLettuce]

Alright thanks...I think I'm only getting 2 anyways

[HowGudAmI]

It is a shame these are not a little cheaper, If I could get a ROI in 3 months I would do it in a heartbeat, 6 months and I would consider it.

If my calcs are correct these things currently will generate 0.01BTC per day, so 199 days for payback excl power/hubs/hosts/group buy fees/difficulty rises.

[Boxman90]

Taking into account the skyrocketing difficulty increase, these things won't even break even after a year of continuous mining.

Why are we buying these again?

[erk]

Taking into account the skyrocketing difficulty increase, these things won't even break even after a year of continuous mining.

Why are we buying these again?

I asked the same question, ASICMINER claim to have sold 4,000 units, that's, right 4,000 x .3GH/s = 1,200GH/s

I just laughed. That's 8,000BTC wasted, you realize how much hashing power you could get from Avalon or BFL for that money? Had you bought 20 x 66GH/s Avalon boxes for 75BTC each and set up a community farm, you would be hashing more than the entire network of Block Erupters, and saved yourself around 5,500BTC. I can't believe that so many people have been sucked in by what is clearly the ASIC ripoff of all time!

[turtle83]

Taking into account the skyrocketing difficulty increase, these things won't even break even after a year of continuous mining.

Why are we buying these again?

I asked the same question, ASICMINER claim to have sold 4,000 units, that right 4,000 x .3MH/s = 1,200GH/s

I just laughed. That's 8,000BTC wasted, you realize how much hashing power you could get from Avalon or BFL for that money? Had you bought 20 x 66GH/s Avalon boxes for 75BTC each and set up a community farm, you would be hashing more than the entire network of Block Erupters, and saved yourself around 5,500BTC. I can't believe that so many people have been sucked in by what is clearly the ASIC ripoff of all time!

Captain Hindsight to the rescue - http://www.youtube.com/watch?v=cqkI691dxNg

[yxt]

From BFL? *lol* ask the guys preorders @ BFL liars a year ago

[erk]

From BFL? *lol* ask the guys preorders @ BFL liars a year ago

At least they are now receiving superior value product than Block Erupters that will actually give them a positive ROI.

BFL in a day shipped more of their entry level 5 GH/s units, with a total hashing power than the entire 4,000 Block Erupters can do combined.

[yxt]

sure sure... they ship 400 a week.... in 14 days... go and tell that to the Marines!

[roy7]

Taking into account the skyrocketing difficulty increase, these things won't even break even after a year of continuous mining.

Why are we buying these again?

Fun.

[freshzive]

what pool is everyone using with this?

getting high rejects (~10%) on eligius using cgminer 3.1.1.....

like this:

ICA 1:                | 330.0M/331.5Mh/s | A:12016 R:1202 HW:238 U: 3.78/m

[CommanderVenus]

what pool is everyone using with this?

getting high rejects (~10%) on eligius using cgminer 3.1.1.....

like this:

ICA 1:                | 330.0M/331.5Mh/s | A:12016 R:1202 HW:238 U: 3.78/m

Try using CGminer 3.2.1.
This threads got a good amount of information that could help you too.
https://bitcointalk.org/index.php?topic=220905.0

[freshzive]

Try using CGminer 3.2.1.
This threads got a good amount of information that could help you too.
https://bitcointalk.org/index.php?topic=220905.0

Yeah, I get this error when I try to run in cgminer 3.2 or 3.2.1:

cgminer: -S: unrecognized option

I built using --enable-icarus

[-ck]

Try using CGminer 3.2.1.
This threads got a good amount of information that could help you too.
https://bitcointalk.org/index.php?topic=220905.0

Yeah, I get this error when I try to run in cgminer 3.2 or 3.2.1:

cgminer: -S: unrecognized option

I built using --enable-icarus

Because as the release notes say, and numerous other forum posts, you no longer use -S

[joae1975]

Taking into account the skyrocketing difficulty increase, these things won't even break even after a year of continuous mining.

Why are we buying these again?

I asked the same question, ASICMINER claim to have sold 4,000 units, that's, right 4,000 x .3GH/s = 1,200GH/s

I just laughed. That's 8,000BTC wasted, you realize how much hashing power you could get from Avalon or BFL for that money? Had you bought 20 x 66GH/s Avalon boxes for 75BTC each and set up a community farm, you would be hashing more than the entire network of Block Erupters, and saved yourself around 5,500BTC. I can't believe that so many people have been sucked in by what is clearly the ASIC ripoff of all time!

That would be a valid argument if BFL was shipping on demand.  To have a product in hand ASAP is appealing.

[erk]

Taking into account the skyrocketing difficulty increase, these things won't even break even after a year of continuous mining.

Why are we buying these again?

I asked the same question, ASICMINER claim to have sold 4,000 units, that's, right 4,000 x .3GH/s = 1,200GH/s

I just laughed. That's 8,000BTC wasted, you realize how much hashing power you could get from Avalon or BFL for that money? Had you bought 20 x 66GH/s Avalon boxes for 75BTC each and set up a community farm, you would be hashing more than the entire network of Block Erupters, and saved yourself around 5,500BTC. I can't believe that so many people have been sucked in by what is clearly the ASIC ripoff of all time!

That would be a valid argument if BFL was shipping on demand.  To have a product in hand ASAP is appealing.

Be thankful that they are finally shipping some units in volume!