At the moment your machine is in the pre-embryonic stage of existence. Its nothing more than some bits of data in a data base.
Once it enters the production process the Screen you get depends on which part was on the shelf in the Kitting room on the day and time that a human being had a print out of your order in one hand and was grabbing parts of the shelf and putting them in a your tote with the other. The reason for more than one part ID is so that if one supplier(Samsung or Phillips in this case) does not deliver a shipment on time, it does not slow Dell's production process.
Only after your tote is assembled and tested do they generate a service tag which contains part numbers of all parts that they actually used.http://support.dell.com/support/topi...p#InProduction