Methods, apparatus, and products for managing virtual addresses of blade servers in a data center are disclosed that include storing, by a blade server management module (‘BSMM’) in non-volatile memory of a blade server, a parameter block, the parameter block including one or more virtual addresses for communications adapters of the blade server and one or more action identifiers; detecting, by a BIOS module of the blade server upon powering on the blade server, the parameter block; disabling, by the BIOS module, in dependence upon the one or more action identifiers of the parameter block, an original address of at least one communications adapter of the blade server; and setting, by the BIOS module, an address of the communications adapter to a virtual address included in the parameter block.