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"Unsupported CPU" after changing from gtx 760 to gtx 970 ?

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Jan 16, 2011
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14
Motherboard
GA-Z87M-D3H
CPU
Intel Core i5 4670K
Graphics
Nvidia GTX 970 Windforce
Mac
  1. MacBook Pro
Classic Mac
  1. 0
Mobile Phone
  1. iOS
Hello Guys,

maybe you can help me. I am running 10.10.3 and changed my graphic card from a Gtx 760 to a Gtx 970 ( both Windforce Edition).
However , after I tried to boot into OsX ( neihter internal Graphics with my 4670K nor the 970) I stuck at booting.

After looking what happens, I get the error that I have a "unsupported CPU"( see picture below) . How could this happen? I already tried to load optimized defaults and still I get this error...

Any hint would be awesome!

( Edit : I also removed the card and tried to install the cuda webdriver and so on, the boot itself worked. However, 10.10.3 seems not to be supported for the install of the driver. )
 

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Update : I managed to solve the problem - I removed the card, installed the Cuda + Webdriver, set the default driver to nvidia and set the build to Macpro 3,1 , installed the card again -> Success!
 
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