Guest culser Posted November 4, 2023 Posted November 4, 2023 tsialex, have a little issue with my new MP 5.1 i just got. 2012 MP 5.1 came with ATI card, 16GB RAM, After i received it it booted with H-Sierra SSD sata and it booted and ran. I did try adding additional ram, but after poweron the power light would just flash over and over, since i have removed the extra RAM. The ram i added was from another MP - and it may have been bad Ram, Not Sure. I updated the Boot Rom to 144 by running "Install OS Mojave" using a HD 7950 i was able to install... Read more Source: MacRumors
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