Xeon ES, Intel S2600COE

[mb300sd]

I got this board to work after a long timeout with the stock BIOS it came with, but updated it and now it won't POST with this chip at all. Before it had a bunch of microcode errors in the log. I tried downgrading the BIOS to the earliest version available, but it still won't POST with the ES CPU. I think Intel locked it out, and the original BIOS version that the board shipped with is nowhere to be found.

CPU:
http://www.cpu-world.com/sspec/QA/QA8Z.html

Link to BIOS:
https://downloadcenter.intel.com/SearchR...x?lang=eng&ProductFamily=Server+Products&ProductLine=Intel®+Server+Boards&ProductProduct=Intel®+Server+Board+S2600CO+Family&DownloadType=Firmware

Another board that supports this CPU:
http://www.supermicro.com/products/mothe.../X9DAi.cfm

Please help, I tried using MMTool to look around, but the CPU tab is empty.

Thanks in advance.

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I got this board to work after a long timeout with the stock BIOS it came with, but updated it thinking it would fix it, and now it won't POST with this chip at all. Before it had a bunch of microcode errors in the log. I tried downgrading the BIOS to the earliest version available, but it still won't POST with the ES CPU. I think Intel locked it out, and the original BIOS version that the board shipped with is nowhere to be found.

CPU:
http://www.cpu-world.com/sspec/QA/QA8Z.html

Link to BIOS:
https://downloadcenter.intel.com/SearchR...x?lang=eng&ProductFamily=Server+Products&ProductLine=Intel®+Server+Boards&ProductProduct=Intel®+Server+Board+S2600CO+Family&DownloadType=Firmware

Another board that supports this CPU:
http://www.supermicro.com/products/mothe.../X9DAi.cfm

Please help, I tried using MMTool to look around, but the CPU tab is empty.

Thanks in advance.