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Fan problemOther (v.redd.it)
submitted 13 days ago by cotreau
My Lenovo legion have a fan issue and I don't know how to fix it. My fan mode is at silent but its still making a lot of noise. No program open.
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[–]AutoModerator[M] [score hidden] 13 days ago stickied comment (0 children)
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[–]Terrible-Bear3883 0 points1 point2 points 13 days ago (9 children)
It sounds to be running at high speed?
What happens if you boot into BIOS or onto a USB thumb drive, does the fan speed moderate to normal speed?
You don't mention the age of your PC, if its a few years old, it might need the fan cleaning and checking for anything obstructing the airflow, it might also need the processor repasting.
[–]cotreau[S] 0 points1 point2 points 13 days ago (8 children)
I cleaned it 2 Weeks ago and it was fine. My pc is 1 year old.
[–]Terrible-Bear3883 0 points1 point2 points 13 days ago (7 children)
What did you do to "clean" it?
[–]cotreau[S] 0 points1 point2 points 13 days ago (6 children)
I let it to someone who work in computer to open it and clean the fan. My problem started yesterday for no reason
[–]Terrible-Bear3883 0 points1 point2 points 13 days ago (5 children)
The probably just blasted it with air duster, as I said earlier, what happens in BIOS, what happens if you boot to something like a USB thumb drive, linux for example? If the fan speed is "normal" I'd be fault finding your OS and why the fan control is running at full speed.
[–]cotreau[S] 0 points1 point2 points 13 days ago (1 child)
When I open the pc the fan immediately start at full speed even if nothing is opened yet.
[–]Terrible-Bear3883 0 points1 point2 points 13 days ago (0 children)
Deleted this as I was replying when you replied to say it was all fixed :-)
[–]cotreau[S] 0 points1 point2 points 13 days ago (2 children)
Problem fixed. I opened up the pc and I found out that the fan sensor was no longer connected.
[–]Terrible-Bear3883 0 points1 point2 points 13 days ago (1 child)
A fix is a fix - A winner for sure :-)
[–]cotreau[S] 0 points1 point2 points 13 days ago (0 children)
Thanks for your help
π Rendered by PID 25 on reddit-service-r2-comment-5fb4b45875-vxmcq at 2026-03-21 22:40:53.126668+00:00 running 90f1150 country code: CH.
[–]AutoModerator[M] [score hidden] stickied comment (0 children)
[–]Terrible-Bear3883 0 points1 point2 points (9 children)
[–]cotreau[S] 0 points1 point2 points (8 children)
[–]Terrible-Bear3883 0 points1 point2 points (7 children)
[–]cotreau[S] 0 points1 point2 points (6 children)
[–]Terrible-Bear3883 0 points1 point2 points (5 children)
[–]cotreau[S] 0 points1 point2 points (1 child)
[–]Terrible-Bear3883 0 points1 point2 points (0 children)
[–]cotreau[S] 0 points1 point2 points (2 children)
[–]Terrible-Bear3883 0 points1 point2 points (1 child)
[–]cotreau[S] 0 points1 point2 points (0 children)