The case used in the s can accommodate one 5. The motherboard used in the s is the same as the motherboard used in the edition, except for the fact that this motherboard only supports Dual Core processors, and not any members of the Standard Quad Core series like its twin,unless the motherboard is swapped to the DG33M03 motherboard used in the Inspiron ,or Dell Inspiron 546 Desktop 65W TDP Core 2 Quad. While almost any low profile PCI-E x16[…]