How much stress testing did you do with the original hdd only setup? When I was much newer at this I didnt' realize how much testing can be done to truly achieve a "real stable" OC. I'm not assuming this is your error but I am asking. Have you tested your original setup with prime95? Intel Burn test? Don't just answer "yes". Please be specific about settings ie standard, high, very high stress level for intel burn test, _ hours for prime95 and settings, your actual oc settings such as vcore, utilizing offset or not and how much? If these details are above your head you may have much more to learn but that's the fun of it. If you are already familiar than you should know to list such details when posting but perhaps you were in a rush. You get out what you put in! So, please fill us in so we can help you better! By virtue of your problem and your response to bepop406 you display a habit of rushing which is counter to those who truly achieve stable OCs. You would know that while their may be "faster" solutions that those are not ones that eradicate the possibility of your cpu oc stability as a variable. The details are important here. So please take the time to indicate them and you will spend your time much more efficiently here. Enjoy the process! If you find it too tedious to revert to your previous setting due to not having the luxury of time which most of us understand, then you may be better off just finding the stable oc with your new setup. What bepop406 is recommending will help you narrow down the problem. If you start fresh that could be faster but it also may not get you to the specific variable as fast as you'd like either and could actually make you take much longer to figure out. 2min to give us more detail could save you a lot of headache. Thanks!