I'm not saying you can't do anything with it you wish but they can void the warranty if it is opened.
MSI would put a sticker over one of the screws on their video card saying the same thing, your welcomed to remove that screw but it voids the warranty.
Where I work we sell a bunch of controllers every one between the actual controller itself and backplate that must be removed to get to the inside parts has a seal that states warranty void if torn. Again this is not saying you can't open it up to modify it or try to repair it but if you do we will not honor the 3 year warranty.
Not real clear but from my old GTX 980 been collecting dust on a shelf. The screw is covered with the sticker in the middle of the pic.
View: https://imgur.com/a/ejAaF7e
No, they can't. By LAW, they cannot. At all. Ever.
I mean, they can PUT whatever they want, ON whatever they want, and they can SAY whatever they want. But the bottom line is, any consumer that was willing to take it to court would win, and MSI and every other company knows that. They would not push it past trying to intimidate a claimant initially. After that, when faced with the reality of a court decision, they would absolutely not waste the time or money on something they know they could not win. And there are plenty of consumer organizations that would 100% take up the case for free if any company DID want to try and fight it.
It doesn't matter if they put a sticker on it. I can put a sticker on stuff too. It absolutely doesn't make it legal. In fact, companies have EXPLICITLY been told to STOP doing it.
No longer will you have to resign yourself to a life in which you refrain from pulling off stickers that read "warranty void if removed." As it turns out, these stickers are not only ugly, but in fact deceptive and potentially illegal in the U.S., as per the Federal Trade Commission (FTC).
www.digitaltrends.com
https://www.npr.org/sections/thetwo...turns-out-feds-say-those-warnings-are-illegal
https://www.ifixit.com/News/10016/warranty-void-if-removed-stickers
https://www.engadget.com/2018-04-11-ftc-warranty-warning.html
Any company that puts one of those stickers on ANYTHING, is 100% breaking the law. Breaking the law is only breaking the law if somebody is willing to take it to court though. But the bottom line is, companies KNOW they are breaking the law when they put those on, and if it discourages half the people out there to not touch anything, then it's fully worth it to them because for the rest of the consumer base they will just take care of it and they are already ahead of the game by discouraging people that probably SHOULDN'T touch stuff, to stay out of it, and save the company a lot of unnecessary warranty work caused by people who had no business tampering with anything to start with. But for the rest of the user base, people who are capable, experienced or trained to do it, or are not discouraged by such stickers, it's a non-starter and rightly so because no company has the right to tell you you can't open up a device you own if it needs to be done.
What they CAN do is, IF there is sufficient evidence to suggest that YOU did something to cause the machine, device, component or whatever, to fail, is refuse to honor the warranty on those grounds but to simply say that "we will not honor any warranty if this sticker has been removed", cannot, and will not, fly, in a court of law.