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I use a NVIDIA GeForce GTX 680 2048 MB, I understand that with this GPU i wont be able to upgrade the firmware of my mac pro 4.1 that was upgraded to 5.1, right now my SMC Version is the 1.39f5 that don’t allow me to install high sierra.
I have a old Apple ATI Radeon HD 2600 XT, can I use this GPU to upgrade my firmware?
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