SUPERMICRO SYS-1025W-UB 1U Rackmount Server Barebone Dual LGA 771 Intel 5400 DDRII 800/667/533 CPU Type: Supports up to Dual Intel 64-bit Xeon processor(s) of the same type below: Quad-Core Intel Xeon Processor 5400/5300LV sequence (Harpertown/Clovertown processor)up to 3.20 GHz Dual-Core Intel Xeon Processor 5200/5100LV sequence (Wolfdale/Woodcrest processor) up to 3.40 GHz FSB: 1600/1333/1066 MHz South Bridge: MCH + ESB2 Memory Slots: 8 x 240Pin Max Memory Supported: 64GB ECC Supported: Yes ATA: Single EIDE channel supports up to two UDMA IDE devices (IDE-M, IDE-S) Serial ATA: 6 x SATA 300