Am I pushing hard enough?
My Dad has given me his MacBook (2,1) to upgrade for him. I pulled two 512MB Hynix modules to insert two 1GB Samsung SODIMMs so he can run Yosemite. How hard should I push the modules? Angle? I can’t see enough in there using my iPhone’s torch. I move the levers left to release. Moving them right seem to do the insertion, as the panel screws in, but I got a blinking signal, meaning no RAM. I did get 1GB booting perfectly; one slot was shown empty but both were filled. The old modules now give a blinking alert. My focus is putting the boards in hard enough. Each boot attempt produces a mild squeak with a meagre screen flash. Mike Bird That’s either the Late 2006 or the Mid 2007 model, which needs DDR2667, non-ECC RAM modules, also often sold as PC2-5300. To access the RAM, you remove the battery and undo the three screws holding the metal bracket. The levers on each bay are only for ejecting the modules, by moving them all the way left. Just push the new modules in firmly. The socket is pretty stiff, but when the RAM is in properly it should sit about 1mm in from the chassis’s edge. Watch this video to see what I mean: https://youtu.be/fkrLwqUFsMo.
If the module is the right way around (with the little notch to the left) it should be straightforward. Sub-millimetre alignment isn’t necessary; the module either makes electrical contact with the socket or it doesn’t. If it still isn’t working, one of the socket’s contacts may have been bent or damaged. Fixing it yourself would mean taking the case off completely to be able to see what you are doing.
Since 2012, the RAM in MacBooks has been soldered onto the motherboard, so upgrading it isn’t an option.