marylynn209 wrote:
you are right, I have a mid 2012 15" MBP with 2 x 2 gb RAM.
Before you said "Mid 2011" – now you're saying "Mid 2012".
There were two 15" Mid 2012 MacBook Pros – a Retina model, and a non-Retina model. Since you "replaced the hard drive with a SSD", you must have the non-Retina model. (The Retina model doesn't have internal drive bays, although it does have a type of circuit board SSD for which OWC has aftermarket upgrades.)
MacTracker indicates that a 15" Mid 2012 MBP officially supports 8 GB of RAM, but actually supports 16 GB. (In other words, Apple ran an extra address line which turned out to be useful later.)
If you upgrade the memory, I would strongly suggest getting it from Other World Computing or from Crucial - as Macs can be picky about RAM. Those companies are long-term suppliers of RAM for Macs, and have guides on their site to help you pick the right type of RAM for your model.
When I looked on the Crucial site, it said that they did not have any compatible memory upgrades for your Mac. (DDR3 is by now an ancient type of RAM, so Crucial might have made a business decision not to carry it.)
Other World Computing – OWC Memory Upgrades For MacBook Pro (2012 - Late 2016) Non-Retina
I have learned that with the right OS program, I can reprogram the computer to be able to accept at minimum Monterey OS.
Catalina is the end of the line for that machine. If you're talking about running some program to patch the OS to run an unsupported version of macOS, I suspect that we can't discuss that here. If you do go through with that, and something goes wrong, Apple obviously won't be on the hook for fixing it.
A computer store where I live, says they can do it for 1.5 hours of labor which is $120 / hr. I think that if I get 3 more years out of it, it may be worth it. of course, would rather do this myself, if I can find out what I need to pull this off. Open Legacy ? I have of that but not sure. thanks
Catalina is not recent enough to run current applications from the likes of Microsoft and Adobe. If you upgrade to it, 32-bit applications will break. Still, if you upgrade to Catalina, you might be able to get more life out of the Mac. Catalina is recent enough to run current versions of
- The Mozilla Firefox Web browser or the Google Chrome web browser
- The LibreOffice office suite
- The commercial Affinity V2 programs (including Affinity Photo V2, a full-featured photo editor with support for layers, which you could use instead of the Photoshop or Photoshop Elements that your machine can't run)