Sorry if this is posted in the wrong forum. I have a 240GB OWC Mercury Exreme Pro Solid State Drive that was previously used in a Mac Pro as a startup drive (Snow Leopard system files + applications; about 45GB used in total). It was in good working order when it was removed from the Mac Pro and I would like to have this installed in a 15-inch 2011 MacBook Pro as the main startup drive. The SSD currently does NOT have TRIM support enabled. I have read around and found out that this particular model of SSD has built-in Garbage Collection and so TRIM support is not necessary. I also understand that I should not format the SSD via the usual formatting methods because Disk Utility would simply write zeros onto all cells of the SSD and this would be detrimental to the speed of the SSD. I have also read somewhere that I could simply delete the existing HFS+ partition on the SSD, and then format it again, but I am not 100% certain if this would work. Basically, I would like to empty or blank this SSD, install it into a 2011 MBP, format it as a single HFS+ (Journaled) partition, then install Snow Leopard on it. I would like to achieve all of this without significantly undermining the speed of this SSD. Is there a way to do that? Currently, there is nothing on the SSD that I need to back up or save. I also have a 2009 Mac Pro at my disposal. Secondly, I understand that the MBP has such a thing called sudden-motion sensor (SMS). If I were to replace the stock hard disk drive with this SSD, will I break or inadvertently disable the SMS? Is there anything else I should know before I attempt to install the SSD in the MBP? To replace the stock HDD with my own SSD, is it simply a matter of removing those screws at the bottom case of the MBP, or is the HDD more difficult to replace than adding / removing RAMs (i.e. is it less accessible)? I have zero experience with taking a Mac notebook apart, and I wouldnt want to attempt anything that is too risky. Your advice is really appreciated here.