Thanks. If I add ram, I’ll definitely stick to the 3 slot configuration. Any tips on where to get a good ram deal? Is OWC the best? I’ve had this sitting in my Amazon cart for a long time and the price never seems to budge: OWC 24.0GB (3X 8GB) DDR3 ECC PC10600 1333MHz SDRAM ECC for Mac Pro https://www.amazon.com/dp/B01K22UKVE/ref=cm_sw_r_cp_api_glt_fabc_JZ1XDW6G9PX21E4JDEKM?_encoding=UTF8&psc=1