Review your architecture needs to determine whether ESX or ESXi is the right foundation for your virtual infrastructure. Identify the answers to these questions:
Do you need the console operating system?
Do you need to minimize the footprint on the physical server?
Do you want to install any third-party applications that require the Service Console?
Always consult the ESX/ESXi compatibility guides before purchasing any new hardware. Even if you are successful at installing on unsupported hardware, be aware that using hardware not listed on the Hardware Compatibility List (HCL) will force any support calls ...