I get a high-pitched sound from my computer while playing Football Manager. After about 1 hour of playing, a high-pitched noise starts coming from my PC. If I shut down and restart the computer, the sound stops, but if I do a restart without completely shutting down, the sound continues, and this time I also start hearing a 'trim trim' sound from the HDD. What could be the reason for this? I haven't experienced this issue in any other game except Football Manager. What do you think the cause might be?