DELL OptiPlex how to change BIOS from Legacy to UEFI. In Short Differences between the Dell OptiPlex 3050, 5050, and 7050 The OptiPlex 3050 is the budget option and comes with fewer features some of which are fewer RAM slots, less advanced chipset, fewer ports, low power CPU options, lack of Serial port, and others. We just received a batch of Optiplex 7050 desktops but can't get the drivers to take. . 6122 ReleaseID 331N1 Version 6. 0. .