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The fan running when the system is working is normal. You will hear that fan when it is running, this too is normal. If the sound of the fan is different when you download a file, we recommend you call Lenovo Tech Support for more specific help. The number is 877-453-6686.
Sorry, there was a problem. Please try again later.I had this laptop and it never made a whistling noise while downloading, could be you have a defective laptop.
Sorry, there was a problem. Please try again later.
