1. Quad & Dual Core Intel 64-bit Xeon Support 667 / 1066 / 1333MHz FSB 2. Intel 5000X (Greencreek) Chipset 3. Up to 32GB 667/533MHz DDR2 ECC FB-DIMM (Fully Buffered DIMM) 4. Intel (ESB2/Gilgal) 82563 Dual-port Gigabit Ethernet Controller 5. 6x SATAII Ports via ESB2 Controller 6. 1 (x16) & (x4) PCI-e (using x16 slot) 2x 64-bit 133/100MHz PCI-X 1x 64-bit 100MHz PCI-X 1x 32-bit PCI 33MHz 7. Low Profile IPMI 2.0 (SIMLP) Slot