HP 5183-3418 - Terminator board - Used in secondary processor socket for a system with only one processor Retail
HP D8520-63014 - Processor slot terminator module - Plugs into second processor slot when only one processor is installed Retail
HP D9387-63016 - Processor socket terminator module - Plugs into second processor slot when only one processor is installed Retail
HP D4944-69001 - Processor board - Has one processor socket - Does NOT include the processor - Processor Board (Small Horizontal Board) - Has One Processor IC Socket - Does NOT Include the Processor IC Retail