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Can't get HD5770 to run properly


Skaryon
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Hey there, I’ve inherited an old PC from a friend and am trying to get OSX working on it.

 

Here are the specs:

Mainboard: Intel DH55HC

CPU: Intel Core i3-530

GPU: HD5770 PowerColor 

R84FE-TI3 RAM: 8GB DDR3 Mushkin

 

I got it to install and boot, but can’t get the GPU working (it shows up as a HD5000) properly. On my 1080p Screen, everything seems to display just fine, but when I hook it up to my 2560x1080 ultrawide display (via DVI, HDMI refuses to work), it does display at the right resolution, but everything is really jaggy and the sceen flickers.  Tried different applicable frame buffers (Vervet, Eulemur...) etc. GE=Yes works with them.

 

Any ideas on how to do this? Should I use clover over chimera etc. (couldn't get clover to boot so far)?

 

 

Thank you in advance!

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