Adam Mercado

Q: Mac Pro will not boot with ATI Radeon HD3870

hi guys. This girl s an odd one.

 

JUst oust upgraded my Mac Pro 3,1 with an SSD drive for system and apps. With the stock ATI XT2600 card installed in slot 1 everything works fine. However when I remove the 2600 and install the 3870 in slot 1 the machine hangs at the grey apple logo boot screen.

 

THere are are no drivers to install so I'm stumped what would cause the hang.

 

ANy ideas?

 

thx

adam

Mac Pro, OS X Mountain Lion (10.8.5), ATI Radeon 3870, 14GB RAM, 250GB

Posted on Jun 30, 2016 11:51 PM

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