Then you don't have a problem. It was only if you are planning to mixed M3 and M5 in the same cluster and want to vmotion the machines from one host to another. 

I only see 1387 document that show below but do not see in 1385. Does anyone know? Cisco UCS Virtual Interface Card 1387 Data Sheet - Cisco ●  SFP-10G-SR (short range, MMF) ●  SFP-10G-LR (long range, SMF) ●  10GBase-CU SFP+ cable, 1m...

  Hi Chada   The best way forward is to follow the upgrade guide, that can be found here.   https://www.cisco.com/c/en/us/td/docs/hyperconverged_systems/HyperFlex_HX_DataPlatformSoftware/HyperFlex_upgrade_guide/2_6/b_HyperFlex_Systems_Upgrade_Guide_2...

BTW -  For ESXi, where should I enable the EVC ? via VCenter, or UCSM ? And why should I enable it ?   If you want to have a ESXi Cluster that runs on mixed generations of CPU you need to enable EVC to get them work in the same cluster. You can rea...

Hi Tony,   You need to ensure that you are running at least UCSM 3.2.x for support for the B200M5.  The Service profile will work with the new hardware without any changes.    When talking about the cluster are you here looking at ESX or HyperV or?  ...