Summary: When I when from Snow Leopard to Snow Lion on my aging iMac (just to read larger hard drives), I noticed the system seemed to lag a little bit. While Apple officially maintains that this model can only support 4 GB of RAM, I'd been told that with Snow Lion or a newer OS, it could read up to 6. So I gamble $85 and bought this 4 GB module and swapped out one of the existing 2 GB modules and the system does seem to run a bit faster! And the new OS sees the additional RAM.
Summary: I recently discovered that 2007 iMacs can effectively use 6GB of RAM even thought the specifications state that they max out at 4GB. I swapped this in for one of my 2GB sticks and now have 6GB of RAM working perfectly. The computer is running quicker and had no problems updating to OS X Mavericks (which I've heard may be a strain with only 4GB of RAM).
Summary: Bought this to increase my girlfriend's Macbook (early 2008). She was told by the Apple "genius" at the store that her model could support up to 6GB of RAM, so I bought her this single stick of 4GB, thinking that I could pair it with 1 of the existing sticks of 1GB that came with the laptop. However, while the Macbook booted up with 1 stick of 4GB and 1 stick of 1GB, it only recognized the 1GB.
Summary: Upgrading my MacBook to 6gb (this 4gb card and a 2gb card, which is the max is can handle without sending it into a tailspin) kept me from having to buy a whole new computer. Overall, totally worth the investment!
Summary: The newer browsers take up a lot more memory than they did when the MacBook was new. For $100, it's like getting a "tune-up" for your computer. Things load only a little faster, but it doesn't slow down nearly as much. Much better response. Got one for my daughter's computer, too.
Summary: The mid-2007 iMACs can be upgraded to 6GB of RAM (though the Apple manuals/website says it can only go up to 4GB). By using a 2+4GB configuration. It has boosted the speed of the computer significantly and I don't have to upgrade the computer seven years later. I use the computer mostly for photo processing (photoshop, indesign, lightroom).
Summary: Replacement RAM for a 2008 MBP non-unibody which was also available at OWC, but purchased through Amazon because I'm a Prime member and shipping would be free. Also, no tax. Apple only supports up to 4GB RAM in these machines, but OWC confirms that they will accept up to 6GB. Tried it. It works. All 6GB recognized. Whether or not all 6GB are being used...
If you have an older MacBook Pro, this is what you need.
Mac Coder, Amazon
21 December 2013
Summary: If you have an older MBP (mine is a 17" "3,1" version) that Apple says can only have 4gb in it, take heart -- you can put this and a 2GB SODIMM in the two slots and the improvement is awesome, particularly if your aging MBP seems to be being sorely tested by Mavericks. Really, do it. it's a lot cheaper than a new MBP.