Hey guys iv been looking everywhere so ok i bought a new graphic card and proccesor : MSI R7770-2PMD1GD5/OC Radeon HD 7770 GHz Edition 1GB 128-bit GDDR5 PCI Express 3.0 x16 HDCP Ready CrossFireX Support Video ... and AMD Phenom II X4 965 Black Edition Deneb 3.4GHz Socket AM3 125W Quad-Core Processor HDZ965FBGMBOX but my computer is only like 250-300watts power supply so what could happen if i plu gin my graphic cards and change my cpu? could i try it out a while or is there a big risk of damage or something thanks for answering!