Got it to boot with my Venice !!!
On a hunch I moved my memory from slots 3&4 to slots 1&2 - it now boots most of the time. It warm boots reliably, problems now are cold boot. I am too tired to wrestle with this any more tonight, but at least I don't have to return my new CPU tomorrow. :banana: I will start a new thread after I have done more testing. I reflashed back to the latest bios - it is working now. It's a good thing I have TCCD memory on the short BrainPower PCB - it just fits under my XP-120 heatsink. :D