boforums

Yup, board is definitely in UEFI mode. Maybe I need to give all the BIOS settings a closer inspection, but I think I have everything in the right places.

Mald0n, We are inching closer and closer to success. I followed your directions to remove the DSDT, check BIOS.aml as the dsdt name, and I am able to boot successfully. But same issue remains with the 7950 unable to load the login screen. I still go straight to black screen, but system up and running fine. The card is even recognized when checking system information. I am doing everything through VNC viewer, even this post Any ideas what this issue might be? Thanks again for your help. I've seen some info about frame buffers being wrong, but this is pretty much a reference card. Sapphire 7950 3GB. 1x HMDI, 1x DVI, 2x mini-DP. I have my monitor plugged into one of the DPs, but any port goes to black screen.

Hi MaLd0n, Thanks for looking into my issue, but when I use the patched DSDT, I am unable to boot. I've attached images of where the boot gets stuck. This happens with the AMD 7950 or the nVidia card. I can press the space bar when it is stuck, but it basically keeps looping through that AppleKeyStore: Operation Failed lines. Cheers and Happy Holidays!

Hi MaLd0n, I've used your Mojave guide to decent success in building my hack. Thank you! But I need help with DSDT patching. My x79 Biostar board is working quite well, except for power management and sleep. I've read your comments on other forums that sleep is difficult with x79 and Mojave, so no worries there. Power management or speed step would be good, I think I am constantly running at 3.8ghz on this E5-1650. Other big issue is I can't get my 7950 to be the primary GPU. If it is the only GPU, it boots to black screen. I need to keep an nVidia P2000 in slot 1 and 7950 in slot 2. Will a patched DSDT help fix this? I want to upgrade to an RX580. I tried with a friend's RX480 and had the same result, black screen right before login window. I am using a Huanan X79 DSDT I found somewhere which seems to work well. I've also added the origin folder. Using SMBIOS 6.1. Thanks again for your help! Send me AHSs-Mac-Pro.zip AHS-origin.zip