I have a mid 2010 27" iMac. I use it for video editing and creating short films. Recently video exporting time has gone way up and i googled around it and they all told me that i was in need of some more RAM. I'm new to this kind of stuff, so i got some ram out of my old HP Windows Laptop and was wondering if it would be SAFE to put it in there, and then i would get more ram? My current ram type within my imac is 1333hz DDR3 4GB. The ram from the laptop is DIMM-CT 1GB.