Celeron 2.4ghz S478 128k 400fsb INTEL SL6VU Celeron Processor 2.40 Ghz/128/400/1.25v Intel SL6VU Celeron 2.40 GHz 400MHz Processor CPU Processor Frequency: 2.40 GHz Package Type: 478 pin Bus Speed: 400 MHz Core Stepping: D1