CPU Support max 1pc Intel Xeon LGA 775 1.8 GHz~2.66 GHz CPU （Xeon3000/3200） Intel Pentium D LGA 775 2.8-3.2 GHz CPU Chipset INTEL S3000(MCH);ICH7R(ICH) FSB /800/667/1066 Cache 4M RAM ECC/NO ECC/ Unbuffer DDR2 400/533/667 SDRAM,support max 8GB memory RAM Mistake Detective Modify one-digit mistake ,detect two-digit mistake SATA RAID Support RAID 0,1,5,integrated Intel matrix storage Manager &LSI Graphic Adapter Controller integrated PCI Expansion Slot 2*PCI-E*8;1*PCI-E*4 ports;2*32bit/33MHz HDD Expansion slot Provide 4 hot-plug hard disk expansion slots(not hot-plug ) LAN Integrated 1*Intel82573 1000M and 1*Intel82541 1000M LAN