macbook 17"

Hi, i installed macos lion to a core duo macbook pro using dosdude method, it boots up fine but after 3-4 minutes or so i get several extension errors. I think the erros have no harm but there is another problem, when i put the laptop to sleep or close the screen it wont turn on anymore and i...

In March 2019 I replaced the batteries on our 2009 and 2011 17" MacBook Pro's. They are NewerTech bought from OWC, and when first installed they could run on battery for a respectable time. Both 17" now have the same battery stamina issues - they'll run for about 20 minutes and then shut down...