I suggest to check the system compatibility first.
If can not find any compatibility then check the Technical Product Specification for the system configuration and limitations
However better to tell the people that specific parts such as what model of Nvidea VGA card of your system then someone can provide solution.
Hi edwardzh, did all that before purchase by consulting Intel website to ensure all components are compatible. Consulted Intel support and they inform that the E5-2690-V2 processors need BIOS updates on motherboard to function correctly. They suggest getting an older processor to start up the workstation and do the BIOS updates. Once done, revert back to the newer processors. If still no video at startup, then motherboard needs to be changed. Now waiting for Intel distributor to provide temporary loaner processor (old ones) to do the BIOS updates.
Thanks for yr suggestion.