Products on this page : Dell Core 2 Duo E7300 2.66 Ghz Dual Core Processor - Kit : Dell Quad-Core Xeon X3330 2.66 Ghz 2x3mb, 1333mhz Fsb - Kit : Processor - 1 X Intel Quad-Core Xeon X5355 / 2.66 Ghz ( 1333 Mhz ) - Lga771 Socket - L2 8 Mb ( 2 X 4mb (4mb Per Core Pair) ) - Box : Processor - 1 X Intel Quad-Core Xeon E5430 / 2.66 Ghz ( 1333 Mhz ) - Lga771 Socket - L2 12 Mb ( 2 X 6mb ) - Box : Processor - 1 X Intel Core 2 Quad Q9400 / 2.66 Ghz ( 1333 Mhz ) - Lga775 Socket - L2 6 Mb ( 2 X 3mb (3mb Per Core Pair) ) - Box : Processor - 1 X Intel Dual-Core Xeon 3075 / 2.66 Ghz ( 1333 Mhz ) - Lga775 Socket - L2 4 Mb - Box : Processor - 1 X Intel Dual-Core Xeon 5150 / 2.66 Ghz ( 1333 Mhz ) - Lga771 Socket - L2 4 Mb ( 2 X 2 Mb ) - Box : Coolermstr Cosmos S Atx : Coolermstr Cosmos S Atx