well no matter what i try, even putting the s3 in front of an AC, the hash rate drops to about 400 after a few hours, not matter the cooling, the cleaning and re paste, heat sinks on the dc-dc and freq i use.
i need to restart it, usually restarting cgminer gives me back my top hash about about 30mins, than it drops slowly,
anyone know how i can kill and restart cgminer every X amount of minutes. ?
what is the power supply your using for the antminer?
Can you check voltage going to the chips at startup and when the hashrate has dropped?