I’ve never done it, but it should be piece of cake job for Andy tool. IMO, all we have to do it is to extract CPU microcode module from any of the latest BIOS and replace it our BIOS. I guess, it’s completely independent module - nothing else needs to be updated with it. If somebody knowledgeable could put a little tutorial together - everybody will appreciate it. One more thing to think about: Is there a way to parse CPU microcode to determine what CPUs are supported to make sure we add what we want and don’t drop out current CPU by mistake?
The post say only "Unsupported processor(s), system halted !", and a blinking cursor... I can only shut down the server. But I found a "solution" : I downgraded the bios from A06 to A03 and it boot ! Processors are quite good detected, just say "3,33ghz dual core, L3 cache : unknow", and after I have a warning message who say that microcode of processor isn't updated, but after the system boot normally...