A-Comparison-of-White-Box-Servers-and-OEM-Servers-Purschasing-Processes Exit Technologies 

https://www.exittechnologies.com/blog/data-center/server-upgrade-purchase-white-box-servers/

This graphic shows the difference in processes between buying a white box server and buying servers through a regular OEM like HP or Dell. White box servers are suddenly a big consideration for a lot of companies after the Open Compute Project opened the doors for the actual manufacturers of servers to bypass the likes of OEMs like HP and Dell. This flowchart and the accompanying article are meant to help you decide which option is best for your organization and your needs.