Motherboard is an ASUS Crosshair II Formula, Republic of Gamers Series, nForce 780a SLI Socket AM2+ onboard graphics 8 channel audio ATX. CPU is an AMD (HD9550WCJ4BGH) Phenom 2 x4 (quad core) 9550 2.2GHz. CPU Cooler is an Akasa AK-875 AMD Heatpipe (92mm) Cooling Fan AM2 heatpipe cooler. Memory is Corsair CM2x2048(4Gb) 6400 C5. This kit all works together perfectly, sale due to upgrade.