I have a very nice 3080 ti myself . Friend of mine bought himself a clevo p870tm1 with vapor chamber and then bought a supposed 3080 MXM from a seller on eBay . Card pulled 180 watts and overheated instantly because the vapor chamber doesn't have the proper mounting points . So he gave up on it and then sent it to me . I managed to figure out how to mount it and apply proper pressure with a combination of a copper shim( harvested from and old Asus rog laptop ) plenty of pads , bending the tabs up where you screw the vapor chamber to the chassis ( 2 points 1 left 1 right ) and a foam block pressing on the cooler and the underside chassis. The card is identified as a 3080 ti with both gpuz and cpuz as well as task manager . Had an extra resister soldered as well . So I'm assuming the seller probably gets a bunch of these cards from dead clevos , tongfangs ,firebats, or whoever and flips them . Anyway it's an impressive card that REQUIRES the use of both power bricks otherwise it power throttles lol temp are 30s idle and 80 plus full tilt with fans on auto