Let me try to be concise:
Original box Mojave, cMP 5,1 2010, 6core-single 3.33, 24GB, Radeon7970, SSD boot, and assorted storage.
PCIe: RME RAyDat Audio, UAD-Audio DSP.
I have power up issues, you have to "play 3-4 minutes" with the push button to start (for years), after that it runs fine...