Full Intel ® Blue Box Servers are a complete product built by Intel to the same standards of quality and reliability that you can count on from Intel Processors . You can rest easier knowing that both the Processor and all of the Components in the System are built and supported by Intel and made to work with Advanced Intel® Technologies and Software. Often times, other manufacturers such as Dell, HP, Lenovo use 3rd party components that increase the chance of inefficiencies of the system. Dell, HP, Lenovo have Networking Cards from Mellanox, Intel, Broadcom, RAID Controllers from Avago/LSI/Intel, Power Supplies from Lite-On and Delta, among many other components that come from various technology partners.
In conclusion, Dell, HP, Lenovo and are not as homogenous as Intel Full Blue Box Solutions that are fully optimized with the following Intel System Components.