Radeon 6470m Kext Helper

If you stay to versions Yosemite and earlier you may have luck with post installation with the HP Prebook installer app. I have been unable to resolve the video card problem to get it working in Sierra.

ATI/Apple RADEON Pro 3870 512MB 'Dual-Head' 16x PCIe Video Card for the Mac Pro 'Early 2008' ATI/Apple OEM RADEON 3870 Pro 512MB GDDR4 256Bit 16x PCIe Video Card for the Mac Pro Early 2008 with two x Dual-Link DVI Ports, supports up to two 30' displays! Supports HDMI output up to 1920x1080(1080p)! New with 1 Year Warranty.

The USB 3.0 was enabled by the generic USB kext from Rehab Man (thanks), but I'm not sure Sierra is running USB 3.0 at true speed. I was able to get everything including the video card to work on Mavericks, by dumb luck. I think now I have a better understanding, what the Pro Book installer does: 1) installs patched kexts 2) modified the DSDT 3) modifies the 6000 controller kext 4) But only to Yosemite, that is an older OS and not desirable for my line of work I installed Sierra on a new HDD, mounted the EFI from the Mavericks install and copied the folders in the EFI to the new EFI partition on the Sierra HDD. I also copied the patched ATI6000 patched kext over to the Sierra permission, (installed with kext beast). And was not able to get anything going as far as the video card seeing the v ram and frame buffer issues. Are there specific kexts or clover settings or frame buffer differences from Sierra to Mavericks in the same video card? Dikij tunic torrent.

Or is this a lost cause? If you want more information how I was able to install on Mavericks, I can get you help. Sierra has been no dice. Can anyone on the forum help us with this?

I can send my EFI structure over whoever I can post it, as well the config.plist, as well the kext, provided this is not illegal. Thanks again.