Hi,
I have problem with my motherboard. It's old Asus P7H55/USB3. I put a new chassis fan in my PC but I made a mistake and bought 4-pin PWM fan but my motherboard has only 3-pin connection so it is very loud because it work on its highest speed of around 1400 . Yet according to the manual for my motherboard there should be an option to control its speed from BIOS, at least for it not to work with highest speed https://www.manualslib.com/manual/449159/Asus-P7h55-Usb3.html?page=61#manual even though I don't have such option in my PC BIOS under hardware monitor.
I have problem with my motherboard. It's old Asus P7H55/USB3. I put a new chassis fan in my PC but I made a mistake and bought 4-pin PWM fan but my motherboard has only 3-pin connection so it is very loud because it work on its highest speed of around 1400 . Yet according to the manual for my motherboard there should be an option to control its speed from BIOS, at least for it not to work with highest speed https://www.manualslib.com/manual/449159/Asus-P7h55-Usb3.html?page=61#manual even though I don't have such option in my PC BIOS under hardware monitor.