Blade B200 M3 "Compute Failure" after CPU upgrade to V2

[Itris]

We got a defective UCS blade B200 M3 equipped with E5-26xx V2 processors. We also have a replacement blade server but with V1 processors. So we took the good V2 processors from the defective blade and put them into the replacement server...

Now comes the fun part. The new blade works with no issues. After a manual power-on and connecting a monitor the the front port, I can see everything working. It even boots from USB.
But the blade-enclosure management tells me that the new blade has "Compute Failure" and goes "not operable". No way to get it running properly.

There is the same firmware on the old and the new blade server. Even the manual tells me that the firmware I'm using is way newer than I'd need for a V2 CPU.
I also decommissioned the blade, did factory reset... no help. But as soon as I re-install the V1 CPUs, it goes green and works.

What am I missing here?

[Steven Tardy · Accepted solution]

Cisco UCS B200 M3 Blade Server spec sheet has:

Upgrading your Server from Intel Xeon E5-2600 to Intel Xeon E5-2600 v2 CPUs 
(or downgrading from Intel Xeon E5-2600 v2 to Intel Xeon E5-2600 CPUs)
See the following link:
http://www.cisco.com/en/US/docs/unified_computing/ucs/hw/CPU/IVB/install/IVB-B.html

 Haven't done this directly myself, your mileage may vary.

[Itris]

Thank you for the link. This actually solved the problem. Some steps are a bit misleading, a couple of examples for the CLI commands would be nice. But since this is an old manual, I guess it will not change anymore. However, not a problem you have to solve...