Screen issues and higher fans speeds after replacing laptop fans

[Tufuser]

Hello,

My laptop is Asus tuf gaming fx705dt
Amd ryzen7
Mfg 2019
Windows 10 home

I just replaced both fans because of some grinding noise. I confirmed both fans were running before screwed back the cover. But shortly after I log in, my screen started to go off and on many times. My armory crate shows me both fans running around 2900rpm. When I boot into bios mode it show me CPU fan speed 3000 rpm and runs higher to 4000 rpm in a few minutes while the GPU fan stays around 690rpm. Very strange. The temperature is around 74 degrees. And the laptop is hotter than usual in just minutes. Please help let me know what is wrong. Did I miss something ? And how do I fix this ? Thank you.

 

[romromillys]

Check if the fans are installed properly, thermal paste is applied correctly, and vents are clear. Update or reset BIOS to address fan speed issues. The "Black Screen" and overheating might indicate a hardware or sensor issue. Professional service may be needed if it persists.