Intel Core2 Quad Q6600 SLACR SL9UM Desktop CPU Processor LGA 775 8M 2.40 GHz 1066 MHz Intel Core 2 Quad Q6600 SLACR Quad Core 2.40GHz 8M Cache 1066MHz CPU Processor Intel Core 2 Quad Q6600 SLACR Quad Core 2.40GHz 8M Cache 1066MHz CPU Processor