By this point, most of you probably already know that the Late 2005 PowerMac G5 (along with the Quad) actually supports far more memory than the measly 16GB which is purportedly the limit for it. Now, apparently, some 4GB DDR2 sticks might work in it without performing any OpenFirmware magic...
As I am planning to upgrade my 21.5 inch iMac late 2012, I did some research and conventionally it is only possible to upgrade to 16 gb with 2 X 8 GB rams. Of cause we know the specs of the ram needed (https://eshop.macsales.com/item/OWC/1600DDR3I16P/). However, out of curiosity I googled...
I have an Early 2011 MacBook Pro 13" that runs well but has been a bit slower than I want it to be. A few years ago, I upgraded the RAM from 4GB to 8GB when I started using Adobe software regularly. I still have the stock 320GB Hitachi HDD. Forgive me if I am not clear, I am not very well versed...