So I was talking to a friend and he said OCing, particularly messing with voltages, can basically fry my entire PC... I'm not super tech savvy but I assumed that OCing was relatively safe even for beginners as long as I'm going for a pretty safe/easy OC. There is a video on youtube that basically goes through the BIOS settings of my exact mobo and processor to do a "safe" OC, but it does change voltages, if I basically copy what he did and just go through my bios and enter the same settings am I at risk or is my friend full of ****? Thanks.