chimera 4.1

Hey guys, very new to all this but have inherited a machine running Chimera 4.1 with Yosemite.. Well I got the computer stuck by resetting PRAM the traditional Mac way because of something I'd read. Overall however I'd like to install Clover and upgrade to Sierra. It doesn't bother me to lose...

Hi, Guys! I have some doubts. a) I installed Chimera 4.1 through Multibeast, although I had read that it had been updated, but the Bug of RAM, remains, unfortunately. I have already tried with MacPro3,1, but nothing! b) It is probably the trim, but I noticed that the restart is...