OSX Yosemite Hackintosh freezing problem + general to do's

We've recently put together a Hackintosh with the following config: HARDWARE: INTEL 240GB 2.5 INCH 535 SERIES SSDSC2BW240H601 WESTERN DIGITAL 3000GB WD GREEN™ 64MB I-POWER WD30EZRX CORSAIR CMY16GX3M2A2400C11R CORSAIR RM650i INTEL CORE I7 4790 ASUS GTX970-DCMOC-4GD5 CORSAIR HYDRO SERIES H80I GT CORSAIR Graphite 380T White ASUS Z97I-PLUS DDR3 SOCKET 1150 INTEL® Z97 KINGSTON KVR16LS11/8 OS INSTALL OSX Yosemite trough UniBeast THE PROBLEM After multiple tries of installing the OS, it finally worked. However, we have the issue of "random freezing". We tried several solutions: - [login to view URL] - [login to view URL] However, none of them worked. We believe it's the GTX970 that is causing the freezing problem. GTX970 has latest drivers from NVidia. YOUR JOB What we would like to ask you is to fix the freezing problem trough TeamViewer and/or trough chat. The problem will be marked as "fixed" once the computer doesn't freeze 3 days in a row. Second is to configure audio, WiFi, Bluetooth, ... so that everything works 100% correct. PAYMENT - 50% after you mark the problem as "solved" and everything works 100% correct - 50% after the computer doesn't freeze 3 days in a row (we can discuss together on how we're going to prove this in an honest way to you)