Thank you for such a quick reply. I'll try and explain where I have found the information, and in doing so I hope that you will see where my confusion on HDMI audio etc comes from.
In the prerequisites section there is a link - 'AppleALC.kext, see AppleHDA Realtek Audio/Post...
I have an almost 100% working install of OSX High Sierra 10.13.6 on my HP 8200 ssf. This has a core i5 2400, Nvidia 1050ti and Realtek ALC261 HD audio.
I have graphics acceleration, CPU stepping and audio out of the internal speaker as well as the rear audio jack and can select which...
Many thanks for the info. I have now installed High Sierra and the 1050Ti is almost working 100%.
It's detected correctly and the graphic drivers etc are working - the start-up now fades to the desktop rather than showing the blinds effect.
However I cannot get sound out of the HDMI...
I have been building a Hackingtosh based on a HP 8200 SSF. I have installed El Capitan successfully and have a stable install, no crashes, and have updated to the last version of this OS, plus Safari.
However I am having problems with the Nvidia 1050TI being detected correctly.