naquaada Posted May 30, 2016 Share Posted May 30, 2016 Hello, I have a Zotac GeForce 9300 Mini-ITX board with a Sapphire Radeon HD4870 2 GB. The board is modified so that a Xeon E5450 fits, and this is working fine. There's Mavericks 10.9.5 installed and Leopard 10.5.8, unfortunately the 4870 is not supported yet, although there are drivers existing. A Snow Leopard installation is on another harddisk. There are only a few problems, mainly the USB problem. All versions have a lot outputs like this: AppleUSBEHCI[0xffffff8007808000]::UIMFinalize - could not get chip to halt within 100 ms If the BIOS settings are set to Normal/Full Speed, then it works, but who wants to loose USB 2.0? Actually I'm using Chameleon - would it be worth a try to test Clover? Has anyone testet it with Leopard? In the kexts folder there's only 'Other'. Well, I'm still adding the mosts kexts to /S/L/E, also in other versions of OS X. If anybody has a source for Radeon HD4870 kexts for 10.5.8 and some experiences with this card, would be great. Greets, naquaada. Link to comment Share on other sites More sharing options...
spakk Posted May 30, 2016 Share Posted May 30, 2016 Check this link, otherwise I'll check tomorrow a source code that I have on my hackintosh, then I could be build a driver for 10.5 http://applemacanix.com/hd4870.htm To "AppleUSBEHCI" problems Install DPCI Manager and upload the image with device id and vendor id Upload a raw dsdt and ioreg file Link to comment Share on other sites More sharing options...
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