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Showing results for tags 'egpu uefi'.
Hey guys, I'm cross posting from macrumors because I think everyone here has better experience with setting PCI registers and implementing EFI for Windows 8 in a mac setting. So I've installed windows 8 through EFI, no bootcamp (emulated bios setup). Current setup: Macbook Air mid 2012, Windows 8 EFI. Problems right now: 1) No Audio. I've tried everything -- downloaded newest intel drivers and tried to force the HD Audio Controller driver to update using the intel DisplayAudio folder driver as mentioned here by gophermobile http://forums.macrumors.com/showthre...1427082&page=2 Does not work. Windows rejects the driver saying: "The folder you specified doesn't contain a compatible software driver for your device. If the folder contains a driver, make sure it is designed to work with Windows for x64-based systems." (Yes the driver is for 64 bit, straight from Intel's website). Note that I had to use the Have Disk option in device manager, because simply doing "update driver" leads windows to reject the update saying its already gotten the newest drivers. Tried this same Have Disk method to manually install Cirrus Drivers extracted from the Bootcamp drivers, and still the same error. 2) Intel Graphics HD4000 drivers not working. Using basic windows graphics driver which means that graphics is severely impeded. Anyone got a working solution for this? There has been mentions of setting PCI registers and all this nonsense but not sure if that is working. I'm pretty sure these are the 2 MAIN problems. Has ANYONE been able to resolve these? Let's solve these now, especially with the new Bootcamp 5 drivers out. I'm wondering if this can all be solved using the PCI register. This is something I am highly unfamiliar with, but is it possible to set the PCI registers so the drivers identify the HD4000 intel graphics and the Cirrus Audio properly?