Sorry in advance if this is a stupid question . I'm just about to install my new noctua dh15 heatsink but I'm just a little worried about the mounting bracket alligntment. Can I test fit the heatsink on the cpu without thermal paste to make sure the fit is right? Any danger of the heatsink touching the CPU without thermal paste? I'm not powering on or anything and I'll of course add thermal paste once I know it fits right. Thanks!