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Not sure if Boris and Ashok came to any agreement on keeping it. > > Yap, needs to stay on AMD as the loader has always supported it. > I don't understand this. Maybe it's a wording thing. I see the following in a PPR document. Section: Mixed Processor Revision Supports AMD Family XXh Models XXh processors with different OPNs or different revisions cannot be mixed in a multiprocessor system. If the BIOS detects an unsupported configuration, the system will halt prior to X86 core release and signal a port 80 error code. Is stepping not included in this statement? Or do you mean that we can support mixed microcode systems? Meaning the processors are identical but with different microcode versions. Thanks, Yazen