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Author Topic: Nvidia 200 series GT220 fully working in Mountain Lion OS X 10.8 (12A248)  (Read 2376 times)

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Offline chrisNova777

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Nvidia 200 series GT220 fully working in Mountain Lion OS X 10.8 (12A248)
« on: June 01, 2020, 09:11:54 AM »
https://www.insanelymac.com/forum/topic/279753-nvdia-gt220-ml-dp4/

Quote
Extract the Video Card's rom in Windows.

(There's a few methods that can be used to achieve this. I can not remember what I used unfortunately. You will have to Google)

Rename the file with the .rom extension as follow;
Details for my card is as follow;

Vendor ID = 10de
Device ID = 0a20

so that the file looks as follow;

10de_0a20.rom

You will have to get your cards Vendor and Device ID's and implement them as I did above.

Place this file in /Extra in ML DP4.

Install Enoch's Chameleon Bootloader r1999. (Works good for me)
Ensure that you use the following boot flags: GraphicsEnabler=Yes, UseNvidiaROM=Yes and VBIOS=Yes

Dual Monitor, Mirror displays, Resolution and QE/CI all working.

NOTE: This method has been working ever-since Snow Leopard. so will also work for lion, snow leopard and probably works for mavericks aswell???

 
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