Why has my laptop's fan become loud after a few years while other laptops that have also been used for years, whose fans have never been cleaned, don't have this problem? -
![CPU Fan noise and very loud. The sound level is around 30dB Aspire TC-1660 - Page 2 — Acer Community CPU Fan noise and very loud. The sound level is around 30dB Aspire TC-1660 - Page 2 — Acer Community](https://us.v-cdn.net/6029997/uploads/V6EHOEYLC4AG/20230815-152945.jpg)
CPU Fan noise and very loud. The sound level is around 30dB Aspire TC-1660 - Page 2 — Acer Community
![This old CPU cooler is loud because it only had 2 wires and no PWM so I soldered a voltage step down converter inline to make it quieter. : r/techsupportmacgyver This old CPU cooler is loud because it only had 2 wires and no PWM so I soldered a voltage step down converter inline to make it quieter. : r/techsupportmacgyver](https://external-preview.redd.it/psQoKmaIMcR-ZEUh1_hAT6W3DmTOXaP9AV6p2eib2KY.jpg?auto=webp&s=a96faaf19a8fab271105a6a6fb7e6cf4c51d5f22)