Introduction
Prereq only.
Tools
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While supporting the fan assembly with one hand, loosen the two T8 captive screws in the fan cable bracket.
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Disconnect the fan assembly antenna cable from the IO board.
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Remove the fan assembly from the Mac Pro.
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Conclusion
To reassemble your device, follow these instructions in reverse order.
You don't have to remove the fan assy to get to the wifi board & card. It can be done with the fan assy still attached.
Fat Mango -
Fat Mango is correct. That said. If you do pull the fan assembly note that the screws are all held in with blue Permatex and breaking them free takes a fair amount of effort. Getting a good set of Torx screwdrivers is a must.
Jim WIlson -
Hey guys, what would happen if you only replace one card.. I have a D300 but the plan is to upgrade to D500 or D600. So If I can afford and install one instead of the pair would it increase something? or will it cause any conflict? I guess I don’t understand if I the Mac Pro has 2 D300 graphic cards that means each has 1GB? Same as If I would Install 1 D600 that would increase 3GB only? Thanks.
marcotamayo -
D300 = 2GB each card. Very few apps uses two cards at the same time.
Gio Cas -
The (5) Screws are Apple part number 923-0713
Steven Gier -