Case fans running full speed

[ratpizza]

Okay, so I recently made the switch from windows to linux (no-dual-boot, only Linux), unfortunately the case fans now seem to go at full speed constantly even when temp is low. I tried to search this forum and the web for some way to set up a fan-profile that adjusts fan-speeds according to temp but there doesn't seem to an easy way to do this. There is apparently some app called "Imsensors" or something but it does seem a bit complicated and somewhat risky? Anyone have any suggestion what I should do?
My system-info:

System: Kernel: 5.4.0-73-generic x86_64 bits: 64 compiler: gcc v: 9.3.0 Desktop: Cinnamon 4.8.6
Distro: Linux Mint 20.1 Ulyssa base: Ubuntu 20.04 focal
Machine: Type: Desktop Mobo: ASUSTeK model: H110-PLUS v: Rev X.0x serial: <filter> UEFI: American Megatrends v: 2002
date: 09/21/2016
CPU: Topology: Quad Core model: Intel Core i5-7600 bits: 64 type: MCP arch: Kaby Lake rev: 9 L2 cache: 6144 KiB
flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 ssse3 vmx bogomips: 27999
Speed: 800 MHz min/max: 800/4100 MHz Core speeds (MHz): 1: 800 2: 800 3: 800 4: 800
Graphics: Device-1: NVIDIA GM206 [GeForce GTX 960] vendor: ASUSTeK driver: nvidia v: 460.73.01 bus ID: 01:00.0
Display: x11 server: X.Org 1.20.9 driver: nvidia resolution: 1920x1080~60Hz
OpenGL: renderer: GeForce GTX 960/PCIe/SSE2 v: 4.6.0 NVIDIA 460.73.01 direct render: Yes
Audio: Device-1: Intel 100 Series/C230 Series Family HD Audio vendor: ASUSTeK driver: snd_hda_intel v: kernel
bus ID: 00:1f.3
Device-2: NVIDIA GM206 High Definition Audio vendor: ASUSTeK driver: snd_hda_intel v: kernel bus ID: 01:00.1
Sound Server: ALSA v: k5.4.0-73-generic
Network: Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet vendor: ASUSTeK driver: r8169 v: kernel port: d000
bus ID: 05:00.0
IF: enp5s0 state: up speed: 100 Mbps duplex: full mac: <filter>
Drives: Local Storage: total: 1.17 TiB used: 53.72 GiB (4.5%)
ID-1: /dev/sda vendor: Samsung model: SSD 850 EVO 250GB size: 232.89 GiB
ID-2: /dev/sdb vendor: Western Digital model: WD10EZEX-08WN4A0 size: 931.51 GiB temp: 36 C
ID-3: /dev/sdc type: USB vendor: Corsair model: Voyager GT 3.0 size: 29.47 GiB
Partition: ID-1: / size: 227.74 GiB used: 35.64 GiB (15.6%) fs: ext4 dev: /dev/sda2
Sensors: System Temperatures: cpu: 29.8 C mobo: 27.8 C gpu: nvidia temp: 51 C
Fan Speeds (RPM): N/A gpu: nvidia fan: 25%
Info: Processes: 212 Uptime: 17m Memory: 15.58 GiB used: 1.19 GiB (7.7%) Init: systemd runlevel: 5 Compilers: gcc: 9.3.0
Shell: bash v: 5.0.17 inxi: 3.0.38

[spamegg]

Is there a fan setting in your BIOS? I turned down my fans from the BIOS. Unfortunately Linux really lacks an easy fan speed control method.