HP A2051-69007 - 64MHz system processor board - 64MHz System Processor Board - Plugs into Slot to the Right of the Multifunction I/O Board Retail
HP 5062-6954 - System processor board - For use with HP Vectra 486 series - System Processor Board - Plugs into System Interface Board Retail
HP D8228-69006 - Power management/interconnect board - Has connectors for the system processor board, I/O board, IDE drives, and system power connectors - Power Management/Interconnect Board - Has connectors for the system processor board, I/O board, Retail
HP D2186-69001 - Processor board with 66MHz 486DX2 processor - Processor Board (with 66MHz 486DX2 Processor IC) - Plugs into the System (Mother) Board Retail
HP D2182-69002 - Processor board with 33MHz 486DX processor - Processor Board (with 33MHz 486DX Processor IC) - Plugs into the System (Mother) Board Retail