u/Aivannnneee

I recently bought a B450 motherboard then suddenly it stopped working. The last time it was working was last night but now my pc won’t even power on. I’ve tried resetting the cmos and even used an extra working psu to isolate the issue. Will my warranty be voided if I removed the plastic piece preventing the cmos battery from being removed. The mobo itself has few cosmetic damages will that affect my warranty?