Upgrading the RAM on most MSI laptops or desktops generally doesn't void the warranty, as long as no other components are damaged during the upgrade. However, it’s always a good idea to check the specific terms of your warranty or contact MSI support directly to be sure. Some warranties only cover the original parts, so any new RAM might not be covered, but your system itself should still be under warranty if upgraded properly. Always use compatible RAM and follow any guidelines provided by MSI to avoid issues.