Maybe more specific information will be helpfull to solve my problem:
Chipset: Intel C602 rev. 06
Mainboard Model: S2600CP (0x000001AE - 0x005368B0)
BIOS: SE5C600.86B.02.02.0002.122320131210 dated at 12/23/2013
where minimum required bios is ver. 02.01.0002 from 09/07/2013
the list of compatible processors is: http://www.intel.com/support/motherboards/server/sb/CS-033241.htm
where 2696v2 does no appear.
looking forward your help.
If the processor compatibility list does not show your processor model, it has not been officially tested. I would recommend contacting the server team to see if there is a BIOS (microcode) update you can get for your motherboard model.