USB ASIC ERUPTER - Setup & Config. BCG Miner, cgminer & Hubs "Oh Pi"!

[BitcoinFX]

Now where can Americans get it?? lol

These look quite cool.  

ModMyToys Solid Copper Passive Micro-Heatsink - 8mm x 8mm x 8mm (Pack of 4) - Black Electro-Plated-(MMT-HS-8X8-CU-BK)

http://www.frozencpu.com/products/14951/vid-177/ModMyToys_Solid_Copper_Passive_Micro-Heatsink_-_8mm_x_8mm_x_8mm_Pack_of_4_-_Black_Electro-Plated-MMT-HS-8X8-CU-BK.html

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[Polyatomic]

Im using difficulty 128 , HW values seem high . Any feedback would be helpful , I will be moving my hardware to a PI today.

Higher difficulty threw more errors in my testing.

Don't know why

Because you need to convert your shares to Diff1 to calculate HW errors correctly.

Thanks for the feedback.

[os2sam]

Im using difficulty 128 , HW values seem high . Any feedback would be helpful , I will be moving my hardware to a PI today.

Higher difficulty threw more errors in my testing.

Don't know why

Because you need to convert your shares to Diff1 to calculate HW errors correctly.

Thanks for the feedback.

So the way I read that is

HW/(A*Diff)

which is
115/(200*128) = 0.0044921875 = .449%

Seems pretty good to me.
Sam

[ks3rv3rg]

Windows 8
CGminer 3.2.2

cgminer.exe -O USER:PASS -o stratum.triplemining.com:3334 --gpu-powertune 20 --gpu-fan 100 --gpu-engine 1111,1111,1000 --gpu-memclock 1005,1005,900

With this .bat CGminer opens and Runs all three gpus 7950s, as well as recognizes my block erupter.  I have the BE in a USB 3.0 slot and its mining consistently at 333mh/s~.

Also, as you can see by my bat config I did not need to include and special settings for the Block Erupter.  I just installed the two drivers, restarted my computer and CGminer 3.2.2 recognized the card.
Reply

As far as hardware errors, Im literally seeing like 20 per 1000 shares accepted. give or take. so not so bad.

[Troupster]

I understand the math.

Increasing difficulty in stratum increases hw error % across the board for me.

It's slight, but it's there.

[os2sam]

I understand the math.

Increasing difficulty in stratum increases hw error % across the board for me.

It's slight, but it's there.

Didn't mean to imply you didn't understand, sorry.

What is your "slight" increased rate? from what to what?

Calculating Diff1 shares won't be exact so there will be slop in how many diff1 you would have submitted if you weren't using higher difficulty.
Sam

[tom_o]

Now where can Americans get it?? lol

These look quite cool.  

ModMyToys Solid Copper Passive Micro-Heatsink - 8mm x 8mm x 8mm (Pack of 4) - Black Electro-Plated-(MMT-HS-8X8-CU-BK)

http://www.frozencpu.com/products/14951/vid-177/ModMyToys_Solid_Copper_Passive_Micro-Heatsink_-_8mm_x_8mm_x_8mm_Pack_of_4_-_Black_Electro-Plated-MMT-HS-8X8-CU-BK.html

Those are a bit dear! I'd be going for these cause copper doesn't transfer heat to the air very well either.

http://dx.com/p/aluminum-cooler-heat-sink-chipset-for-ram-memory-w-type-8-piece-set-35816

You could just stick a load to the top 'heatsink' side if they dont fit on the little chips on the other!


This is pretty cool tho:



RPi sandwiched between a USB hub and LCD shield. It's doing a lot better than my Pi which can get about 0.47khash on litecoin...

[LaserHorse]

RPi sandwiched between a USB hub and LCD shield. It's doing a lot better than my Pi which can get about 0.47khash on litecoin...

FYI - just started a thread for that project here:
https://bitcointalk.org/index.php?topic=241504.0

[sdminer]

can two hubs function with the Rasberry pi, since it has two usb ports.
for instance 2 x 10port usb 2.0 hubs or is there a limit to how many usb block erupters one pi can handle?

[os2sam]

can two hubs function with the Rasberry pi, since it has two usb ports.
for instance 2 x 10port usb 2.0 hubs or is there a limit to how many usb block erupters one pi can handle?

You should be able to daisy chain one hub off of another too.

[Sampey]

Hi Guys,
i've some problems with my new Usb Erupter.
I've never get an ACCEPT. I Always get FOUN BLOCK FOR POOL or REJECTED
And the Mining pools indicates that my hasrate is always 0.



I run on Windows 7 with guiminer.
My connection string is :

cgminer-nogpu -u Sampey.1 -p XXXXX -o http://www.bottlecapspool.com:12353 --icarus-options 115200:1:1 --icarus-timing 3.0=100 -S COM5

Please help me 

[Perseus353]

"Network diff set to 1"   

[Sampey]

it's a pool of a new cryptocurrency.
The USB isn't working with this kind of pool?

[Perseus353]

Well of course it won't work.

ASIC stands for Application-Specific Integrated Circuit -- it's hard wired to do only one thing: mine bitcoins.

It can't do other cryptocurrencies (except namecoins which use the same result at Bitminter).

[Sampey]

Hum.....only namecoins other than bitcoins? 

[LaserHorse]

Hum.....only namecoins other than bitcoins? 

The Block Erupters can only mine cryptocurrencies that use the SHA256 hashing algorithm.
Add’l details on cryptocurrencies here:
https://en.bitcoin.it/wiki/List_of_alternative_cryptocurrencies

[Sampey]

ok i understand thanks 

[alexrossi]

Is possibly a thing like this? Thanks in advance for all the replies

[LaserHorse]

Is possibly a thing like this? Thanks in advance for all the replies
[…]

49 Erupters … theoretically, yes should work as the bus should max out @ 127 devices.
Need an example of someone using that many devices on a single RPi before we know for sure.

[os2sam]

Is possibly a thing like this? Thanks in advance for all the replies

Well your diagram poses a new question with me.

Is it better to configure the USB Hubs in a Star Topology as you are doing or to Daisy Chain them in a type of Bus Topology?

I am connecting mine in a Bus Topology and never really put much thought into doing a Star.
Sam