A new customer is going to require spare parts for six PowerEdge 1950 servers he wants to put under hardware support contract with our company and the spares stock is to include a motherboard for these servers. He provided DSETs for each server that we may be able to determine his parts requirements and I notice that the motherboards in some are DP/N 0J555H (rev. A00) and others are 0H878G (rev. A01). Does anyone know if there are any important differences between the two? Thanks for any help.