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

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?