Whirring / 'boot-up' sound on repeat when CPU is not in use

[Microsoft Windows]

When my computer is turned on but not in use ('asleep'), it makes a noise like it is starting up, then it repeats this noise every 10-15 seconds constantly. This can go on for a long time, several minutes. What is happening?You can hear the exact sound sequence here: Dropbox Desktop XPS 8960Windows 11 Pro, version 23H264-bitProcessor: 13th Gen Intel i7-13700K, 3.40 GHzRAM: 64 GB

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