macbook pro 15" mid 2014

Hello! I bought a Crucial 1TB P2 NVME SSD to replace my stock 256gb storage, plugged it in using an adapter from eBay, and to my enormous frustration the SSD was recognised and formatable in recovery mode disk utility, but upon attempting to install Big Sur via bootable USB, the installer got...

I got a deal for around $900 on ebay for a 15" 2.2 2014 mbp w/16gb ram, just wondering whether I should go through with it or not. I know batteries go to a 1000 charges, then 80%, so I'd still have some good use of the battery right? thanks

Hi guys, I have a big problem with my mac. When I use it, often it turn off. Always when I do different operation. When i had El Capitan in console I saw this message : previous shutdown cause -128. Now I have OS Sierra but in console there isn't a shutdown message when it turns off. I brought...