It's not open to public but this is what I found for T630: Minimum configuration to POST The components mentioned below are the minimum configuration to POST:  ● One processor (CPU) in socket processor 1  ● One memory module (DIMM) in socket A1  ● One power supply unit  ● System board  ● Control panel    
What is the minimum-to-POST hardware configuration for the Poweredge T630?
Poweredge T630 minimum-to-POST components