Hi Xavier. I'm Greg, here to help you with this.
Does it have a water cooler?
Can you open the case and get up close to listen when you start it, try to isolate where the sound is coming from?
For hardware issues you'll get better help at the best hardware forums Tom's Hardware here: https://forums.tomshardware.com/ as this is a general Windows forum.
If the hard drive is dragging, Test the hard drive or SSD with one or more of these diagnostics:
https://www.lifewire.com/free-hard-drive-testin...
https://mashtips.com/ssd-health-test-and-perfor...
HP and Dell have hardware diagnostics triggered by tapping the ESC or F12 keys respectively as you power on.
Best is to use the HDD/SSD manufacturer's own if there is one, otherwise use Seatools bootable long test:
http://blog.nowherelan.com/2013/04/04/boot-seat...
https://www.seagate.com/manuals/software/seatoo...
Follow this up with a full Disk Check from the Command Prompt in Repair Mode or from bootable media: https://www.groovypost.com/howto/check-hard-dri... if necessary from the Command Prompt at boot: https://www.tenforums.com/tutorials/2294-advanc...
Feel free to ask back any questions. Based on the detailed results you post back, I will have other suggestions if necessary.
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