Macbook pro 2012 problems6/21/2023 ![]() ![]() Really would like the bottom slot to work as well, feels like i am out of options. So I turned the system off, put the 8GB stick in the top slot and now working fine with 1 8GB slot. This time it booted, with black stripes flashing in the screen and the boot taking a very long time while the load bar was not progressing (hope this makes sense to read). Pretty much tried everything after that, SMC reset, PRAM reset, loosening screws of RAM-bracket.Īfter that I tried to put 1 RAM stick back in the bottom slot, and tried to boot. ![]() Put the 8GB RAM back in the top slot, system boots normally with 8GB of RAM. Put the old RAM back in the bottom slot, same problem. No beeps, black screen, just 3 flashing/blinking lights at the LED indicator, with a 1 second pause in between the 3 flashes. I bought myself 2x 8GB of RAM (Corsair Vengeance 1600Mhz DDR-3)Īfter putting in both sticks the macbook didn't start. I got the system with 1 4GB RAM stick installed (in the top-slot) and the other slot being empty. I bought a used MPB 13'' Mid 2012 this week.
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