I'm completely clueless when it comes to taking computers apart and i'm trying my best not to damage my iMac. I want to make my Imac a little faster so, i bought 4 pieces of 4GB memory sticks. When i removed the plate underneath the screen, i pulled out the 2 factory memory sticks and replaced them with the 16Gig. In the process, it took me 10 minutes to figure out why the 16gigs would not slide in. I realized, i was putting them in the wrong way! When i finished the install, I checked the iMac to see if it made a difference. I can tell it's a little faster but i feel it isn't fast enough. Is there anything else that i can do to boast the speed of the iMac even more?