I've already bought a new RAM & SSD and i have no problem with the installation process. FYI i've MBP late 2011. EXCEPT the cloning and backing up steps part . How can i clone and backup my HDD. i'm planing on installing my EVO 850 but before that i have to backup and clone my drive. and the problem is that i'm not sure about my steps can anyone just help me by providing the steps in how to do it, now my mac running the "OS X Yosemite" version 10.10.5. 1-What measures should i take before i start. 2-HOW to clone and use the backup. 3-Do i've to download softwares to do it. ------- one more thing i've read that before installing the EVO 850 i might have to change the SATA cable is that TRUE ??? thank you.