The MSI P45 Neo2-Fr comes with Dr. Mos, an application designed to provide energy saving capability and high computing performance. The Dr. Mos feature includes Green Power, Xpress Cool and Rapid Boost, all designed to keep a lower temperature, improve efficiency and performance. The unit comes ATI CrossFire ready, with 2 PCIe x16 slots. User friendly functionality built in to assist power users when making changes within the in-chassis environment are much appreciated and enhance the features already provided. The unit also comes with 4 DIMM slots for DDR2 memory up to 1600MHz and 7.1 channel audio with jack sensing built in.