Hi Hive account@rahvin84, honestly i dont know if its the best idea ever to try to solo mine with 100 GRC. The reward for the research you are doing gets paid out together with the stake when you are staking. I currently have in my wallet something like 200 GRC and it say to me that iam staking in like 770 days.
Did you change the projects to cosmology@home ? this makes sense because in this project you can have a quite high mag with a lower grade CPU. Iam just asking because in the pool it seems you have researched SETI :) LHC@home is a solid project for an older CPU as well.