So I have my S3+'s up and running, but I'm trying to overclock them to 237.5MHz. But they get a lot of hardware errors (sometimes up to 5%), and sometimes the chips starts showing x's.
Is there anything to solve this? I guess the S3+ from B8 are installed with latest firmware?

Also, I don't really know what pool to choose, currently mining on Eligius/Discus Fish. any suggestions?