HP D3613-69001 - Processor board with a single 133MHz Pentium processor - Processor Board (with Single 133MHz Pentium Processor IC) - Plugs into the System (Mother) Board (2 Can Be Used) Retail
HP D3614-69001 - Processor board with dual 133MHz Pentium processors - Processor Board (with Dual 133MHz Pentium Processor IC`s) - Plugs into the System (Mother) Board (2 Can Be Used) Retail
