If it only touches slightly, I have seen people use a bit of wood to gently bend the side panel slightly out so it doesnt touch.
Nice suggestion but his case is windowed.
Ah ok. In that case, then it touching the window slightly wont be a problem.
Pl guide him as the real problem he is asking is that there is a stress on CPU thru cooler. If cooler is touching the window it is ok but what about the stress as a result of it? pl
The stress will be insignificant. The perspex of the case panel will bend slightly. Trust me, it will be fine.
Mobos can take some bend without issue, pressure on the CPU isnt a problem, some coolers clamp with a lot more force than this.