jruschme Posted November 6, 2013 Share Posted November 6, 2013 I have a D820 from $WORK with 4 GB RAM which I upgraded with a T5500 CPU for 64-bit compatibility. It is currently running Lion with no issues. Could I install ML or even Mavericks or is there some other limitation which would stop me? (EDP compatibility page only lists 10.6 and 10.7.) Thanks... JR Link to comment Share on other sites More sharing options...
Administrators Bronxteck Posted November 6, 2013 Administrators Share Posted November 6, 2013 yup that's about it for that machine. no apple graphics support after lion. Link to comment Share on other sites More sharing options...
Administrators Hervé Posted November 6, 2013 Administrators Share Posted November 6, 2013 Your GPU is based on the nVidia 7300 chip which was dropped by Apple when ML was introduced (along several other GPUs too). However, you could always try the MLPF hack to run ML in 32bit mode and have graphics support through Lion kexts. Have a look at the guides published in EDP->Supported Models with Guides->Dell. It works for the D620n so it should be the same for the D820n since they are very close. Bear in mind that not everything will work as there are some secondary limitations or bugs such as connections to Windows systems or iMessage. For Mavericks, it's a total no-go in the present circumstances: no graphics support at all so, although Mavericks can be installed, it's just unusable. Link to comment Share on other sites More sharing options...
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