Is the PSU malfunctioning or is it only the fan causing the loud high-pitched sound?
Is the PSU malfunctioning or is it only the fan causing the loud high-pitched sound?
The video shows an old Corsair CS450M with random loud high-pitched noises after starting the PC. The sound might not be clear in the footage. Listening closely to the PSU fan doesn’t make it louder. I’m considering replacing the fan, but if the issue is with the electronics, swapping the PSU could be safer. Any advice would be appreciated.
Consider flipping the device to check if the noise changes. If the sound improves, it might point to the fan being the issue. Initially, I thought it was coil whine, but the PSU's volume seems excessive for that. Trying the PSU from different angles could help identify the problem.