How can I check if they perform okay?I looked at the hash rate when I was using cgminer/sgminer now what should I check, I'm kinda new to Primecoin mining, thank you and sorry for my noobish questions.
Look at CPD (estimated chains per day). When you press "s" you can see the progress and how many 4- 7- 8- 9- 10- 11- 12- chains you found.
Are this stats okay for 3xR9 280x and 1x7970?If not any tips to improve them?Can XMP miner be bottlenecked by my processor (AMD Sempron 145)?