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XFX HD 5770 ZNFC on 10.8.3 !!!!!

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I have a XFX ATI Radeon HD 5770 graphics card that did not work on MOUNTAIN LION :( i tried so many way's but no luck , finally i decide to flash my card but so many ROM 's & GUID 's but i did after a lot of try :)

guid to flash :

download and install given software run win flash browse the given ROM and run and reboot that's all , now you will use you'r OOB graphics card to install 10.8.2 or 10.8.3 no
flickering work's Great :headbang:


Note : ( flashing may Harm your Graphics card , do it at your own risk ;) happy hacking )


http://www.techpowerup.com/downloads/1919/ATI_Winflash_2.0.1.13.html
 

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my system wouldn't boot to 10.8.3 with my sapphire 5770 installed. If I pulled my video card and ran just HD4000 it worked fine. So is this a workaround for this type of issue on any 5770 or just the XFX HD 5770?
 
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I dunno.... anyone know if that works with a MSI Hawk 5770? I beleive the port layout is different so I don't know if that would be safe or not.
 
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What will it affect if my card is being flashed? Will it still recognize as Sapphire HD5770 Vapor-x in windows?
 
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