Nick,
Does you BIOS recognize all your RAM and only in macOSSierra you are seeing half the total RAM?
Did you try the SMBIOS >Memory entries I suggested?
My bios sees everything correctly for RAM. I tried changing the system definitions / SMBios with multibeast and it said it was successful, but on reboot the fix did not work.
What is your physical RAM configuration? e.g. 4 x 8GB dual channel
I have 2x16GB sticks. Maybe because I am having trouble making the machine see the correct smbios the OS thinks its an iMac instead of Mac Pro that has more memory slots. My bios sees all the memory. I think if I can get clover and the OS to boot and see the machine as a Mac Pro, it will then pick up at least the memory.
There are also some options for RAM in BIOS where it can be independent, mirrored, lock step or sparing. Any suggestions in this setting. I have it to independent, and my older Mavericks install sees all the RAM
I tried changing smbios to mac pro with multibeast and it did not like that. un-bootable. Is there another way to spoof the smbios definitions? I tried in the clover menu when booting but it did not have an effect. I uploaded the motherboard schematic and picture of where the RAM slots are installed too. I think maybe if I get it to see the machine as a mac pro that has more memory, then It may see all the RAM. Can anyone help on this as well?
My working Mavericks partition was able to get the machine by the MB./multibeast app to see it as a Mac Pro, then see all the RAM. My Mavs partition also sees everything the way i need it. If we can get the following issues:
Renseas USB controller working,
Correct RAM and SMBIOS
I will be in business, thanks again
RE Supermicro x9Dai system with 2 six core XEON. 16 memory slots. And my Mavericks partition see's the machine as a mac pro with all the RAM. Thx, Nick