gpu noise

Hi, i got a strange noise from my GPU while in-game/under loar, in idle state its 100% silent, noise sound depends on the FPS and V-Sync helps in some games, it reduces the noise but not completely Power supply and GPU was tested on another system and it was fine, i've tested them separately...

Everytime I start a game, it doesn't matter if I played for 1 hour or 10 seconds, and exits my GPU makes this noise and only stop if turn off/restart my PC. Sorry for the low volume, this is my PC in idle after I played a game for about 1min and this only stop after turning it off: Not sure...

Hello. As of today my GPU started making this annoying noise and I came to the conclusion it's the fan, since the noise stops at lower speeds. I just wanted to ask what type of oil would be suitable for the fan bearing. Thanks :)