Just bought an Antminer U3. Cannot get it to run more than 30 seconds before the hash rate drops from 45Gh to about 6Gh. I'm using the latest build, as it seems to be the only one that works with it. my batch file is this:

cgminer -o http://us-east01.miningrigrentals.com:3333 -u  -p --icarus-timing=short --anu-freq 200


I change any of that and CGminer doesn't even open. I've tried using the basic bmsc lines that were in the user manual, but still nothing works.


What am I doing wrong here   Pretend I'm 5 when explaining.