Q: Will an Intel Core 2 Duo Quad Q6600 Processor work with the Dell Optiplex GX280 motherboard? The motherboard has LGA775 socket, but it supports DDR PC4200 RAM (not DDR2).
A: Supported CPUs: Intel Pentium 4, Celeron, Prescott So... No it wont support that. If it did it would say Core2-Quad or something. And Supported Memory: DDR2 Maximum Memory: 4 Dual Channel DIMM Support for up to 4 GB of memory