I am not able to get the MacOSX installed at all. The machine hangs up where it is looking for a boot device. I am using a tried and trusted USB installer that I used on the other 3 devices.
I have tried all the boot flags to no avail. At this point I am completely stuck. I was able to get it installed once but it never booted into the installation reliably. So I know that it is possible to install macOSX on this device.
I have been able to get a dsdt.aml file using Ubuntu which I am uploading.
One thing that I have noticed is that the machine is extremely slow when it is booting from the USB installation key. I think the USBs are 1.1 since when i turned off the legacy USB support in the BIOS the USB ports were not recognized by either Windows or Linux. Don't know if this plays a role.
I have uploaded the original dsdt file. This forum does not allow me to upload an actual dsdt.aml or even an excel file with the dsdt. I did this to get line numbers to make it easy for editing.
PookyMacMan suggested that I may have a dsdt problem and I request help and advice here. Would be grateful for any direction.