Good day. Hope everyone who reads this had a good holiday. I recently bought a refurbished Mac Pro 3,1 that came with 6 gigs of PC2 667MHZ RAM. I use this computer predominantly for running Logic Pro X. It ran great but I recently upgraded to 16 gigs of of DDR2 800MHz and it almost seems like it is running worse now. When I click the About this Mac button its reads that I do indeed have 16 gigs of RAM now. I would appreciate any insight on this as I have pointed out in other posts, I am new to Mac. Thanks.