|
SW WI | a 3 pin will work on a 4 pin maybe something changed in motherboards last 3 or 4 years? The 4th pin is for PWM. Here from google
Yes, a 3-pin CPU fan will work on a 4-pin motherboard header.The 3-pin connector will plug directly into the 4-pin header (keyed to fit one way), with the 4th pin (PWM signal) left unused. Speed Control: Because 3-pin fans lack PWM (Pulse Width Modulation), the fan will likely run at full speed constantly unless your motherboard supports voltage-based control (often labeled "DC" or "Voltage" mode in the BIOS).Installation: Simply align the fan connector tab with the ridge on the motherboard header (leaving the 4th pin blank).Safety: There is no risk of damaging your hardware by doing this, though the fan may be noisier than a 4-pin PWM equivalent.
My PC I have fan speeds set in bios | |
|
trying to find a computer fan, 92mm 4 pin Lenovo
