Quote from: MTPcgr on March 11, 2014, 06:54:46 PM

I'm really having some trouble understanding what's going on here. I've been running a single USB Block Erupter with BFGminer for several weeks and have seen ICA 0: with 337/332/355Mh/s. I just upgraded to an AntMiner U2 and used this guide to configure it, and it seems to be running ok around 2Gh/s, but the third number is always much lower and my pool reports much much lower speeds than even with my USB Block Erupter.

What am I doing wrong with the AntMiner to get slower speeds? And what do those three sets of Gh/s values actually mean?

Block Erupter
bfgminer.exe -o stratum+tcp://stratum.btcguild.com:3333 -O xxxx_1 -S all --icarus-options 115200:1:1 --icarus-timing 3.0=100

AntMiner U2
bfgminer.exe -o stratum+tcp://stratum.btcguild.com:3333 -O xxxx_2 -S antminer:all --set-device antminer:clock=x0881

My U1s are working OK with bfgminer --icarus-options 115200:2:2
If this doesn't help, try lowering speed with clock=x0681 just to check do you have weak USB power supply.