I've changed the USB Hub for a 7port powered one, and all ASIC works fluently.

Hi all,

I need some help. Yesterday I've tried to install my third Asic miner USB Block Erupter to my powered hub. Till then, the previous two worked fine. But when I started cgiminer, one's led remained lighting continuously (not the new). It's hashrate is 333MHash, but other values like A, R, WU is 0. Some hw error message also appeared.

Could it be 'cause lack of power of the hub?

It's a kind of this, plugged an 5V/2A adapter.

http://www.4world.pl/files/products_gallery/219960136307946751478.jpg

I've started mining with one asic miner (333MHash) in october 16, now I have two, and third is on posting. I already have 0.03BTC, next 0.01BTC is on the way (~70%) I think with my ~1GHash, I will stop buying miners for a while.

By the way, if I cool the miners with a fan (i've  bought one yesterday) could they mining more effectively, or just increasing the life period?

greenemso
No, if you write it to /boot/cmdline.txt you don't need to do it again. It will start also with every boot.

"If you are using a Raspberry Pi do the following:

sudo nano /boot/cmdline.txt

Add the following code at the end of the first line (on the same line as the other text)

slub_debug=FP"

Business of the century

One antminer costs £59.9 + posting at cryptoware (unfortunatelly its sold out now)

On the manual, there are 2 resistors, and if you change their value, you can overclock it.

I've asked Crytoware about overclocking Antminer up to 4GHash.

Here is the ansver:

"Hi there

Please be aware that any overclocking is to be done at the users own risk, and will void the manufacturers warranty. Overclocking by that amount could greatly reduce the expected lifetime of the device. Instructions are for educational/experimental purposes only - they are included for the benefit of those customers who enjoy modifying their equipment, but customers do so in the full knowledge that Cryptoware cannot accept liability for the results!

Its up to you to decide if you want to play around with trying to overclock these devices, we have read reports of some pretty good results being acheived. We've also read reports of broken hardware due to overclocking.

Hope this answers your question,

Regards,

The Crytoware Team"

I mean the number of rounds and the lenght of it. If I know well, transactions also checked by miners.

Aha, I wasn't dare enough to run cgminer under GUI, but now I can imagine it, thx for the pic. Otherwise I have two Rpi, and I've dedicated one to mine only.

How can I run two cgminer in one raspberry pi? Should I log in with two user? How can I see the two cgminer messages? What if one of it stop working, but the other run well. How can I restart the stopped one without messing the working one?

Hi,

In the guide of antminer seems it could be overclocked up to 4GHash, has anyone tried it?

Could 2 asic USB miner and 1 USB antminer working together on the same USB hub under cgiminer?

In that case If I want to keep the level of BTC reward I have to invest new hardware time-after-time?
Could the rate of BTC / number of BTC transaction modify the long of a round /number of round in a day?

Hello all,

I've started mining bitcoins with one USB Asic miner in october 2013, a round reward was 0.00001xxx-0.00003xxx, then in november I've installed a second one and the round reward increased to 0.00003xxx-0.00008xxx. But from end of  november, the round reward dropped again between 0.00001xxx and 0.00003xxx. The hash rate still ~670Mhash (2x333Mhash). Is it normal?
I've also found, that in october-november a round took 0,5-1,5 hour and the number of it was 10-20 / day. Nowadays the number of rounds are 3-6 / days, and often they tooks 4-11 hours long. Is also normal?