? if u mean mother board,sorry this gonna be my first rig, i listed it

This is what I have planned so far but i would like a second opinion

Tower:Thermaltake-Soprano Mid-Tower Case

Motherboard:ATX Desktop AMD Phenom II Motherboard(Socket AM3)

CPU:AMD-Deneb Phenom II X4 Processor 945

Graphic card:XFX-ATI Radeon HD 4890 1GB DDR5 PCI Express 2.0

OS: Windows 7 Home Premium

Harddrive:Western Digital-Caviar Black 1TB Internal Serial ATA

Fan:Corsair-Hydro Series H50 CPU Cooler

Memory:Corsair-4-Pack 2GB PC3-12800 DDR3 DIMM