SATA HDD 360GB 400GB 500GB 750GB 1000GB MOTHERBOARDS SOCKET 775 SOCKET 478-2 MEMORY SLOTS SOCKET 478-4 MEMORY SLOTS LGA SOCKET 775 2.6 GHZ 2.8 GHZ 2.93 GHZ 3.0 GHZ 3.2 GHZ SOCKET 478 CPU 2.4 GHZ 2.5 GHZ 2.6 GHZ 2.8 GHZ 2.5/512/533GHZ IDE DRIVES 40 GB 60 GB 80 GB MEMORY 128 MB DDR 128 MB SDRAM 256 MB DDR 256 MB SDRAM 512 MB DDR 512 MB SDRAM