Modifying the software (for example, temperature-triggered CPU throttling?) might move liability to the customer side, if the hardware's integrity is software-controlled: https://europa.eu/youreurope/business/dealing-with-customers...

" the injured party must prove that: damage took place, your product was defective, the defect and the damage were linked."

"You bear no liability if you can prove that: he defect causing the damage did not exist when the product was placed on the market"