The upgradeable to Xeon E5-2697 v2 had been confirmed by both tmtam and Martin St in this thread.  The system was validated and shipped with CPU up to Xeon E5-1650 v2, which was 130w TDP.  So you can use the OEM cooler (heatsink + fan) for Xeon E5-2697 v2, which is also 130w TDP.

Beside ensuring your system has the latest BIOS firmware, no other modifications needed.

There are, usually spanning 2 generations. The easy way to find the part numbers is :

using your preferred computer model ( example 7820 )
google for a benchmark > https://www.userbenchmark.com/System/Dell-Precision-7820-Tower/72419
click on one, and you will get the info of the mb p/n associated with it.

So, you know, before clicking, which cpu was tested... and you know that if it's a Gen2 ( in this example ), the mb will also allow Gen1.

For each series of workstations, any motherboard revision supporting v2 - v4  - gen2 , will also support v1 - v3  - gen1 respectively.

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@mazzinia wrote:

No, it's not possible

The cases are these, doesn't matter the brand

MB allows v1 , then a newer revision of the MB allows v1 and v2
MB allows v3 , then a newer revision of the MB allows v3 and v4

In some cases you may get directly a MB allowing v1/v2 ( or v3 and v4 )

And that's all. The same happens now with the newer xeons.

Initial revision allows Gen1 , subsequent revision allows Gen1 and Gen2

 

FCLGA2011 is 3rd/4th gen intel core ( xeon e5 v1/v2 )

FCLGA2011-3 is 5th/6th gen intel core ( xeon e5 v3/v4 )

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Are there any specific motherboard revisions that allow compatibility with multiple generations of processors, such as supporting both Gen1 and Gen2 Xeon processors?

@souacz​ 
Installed directly from the ISO:

Just updated my Dell T3610 to a Xeon E5-2697 v2 12 Cores, 30MB L3, 16MB RAM, will do 32MB Ram soon. BIOS A19