Can a mobile phone manage the 3-pin CPU cooler?
Can a mobile phone manage the 3-pin CPU cooler?
Saberus:
The device will operate at maximum velocity. Only a 3-pin configuration provides 12v power, ground, and speed-sense. The fourth wire transmits the signal for variable speed.
This isn't entirely accurate. Three-pin fans typically have their speed regulated by voltage. If the motherboard supports it, speed adjustments are possible, though fewer options exist.
Most boards use a 1 volt or 0.5 volt adjustment for 3-pin fans. I'm currently using two 3-pin fans on my Asus Z77-A board. Their speeds change based on temperature readings. With just six potential speeds visible, it seems they're cycling from 7 to 12 volts in one-volt steps. 7 volts corresponds to the minimum voltage any 12-volt fan can handle...
4 pin PWM fan headers are also compatible with 3 pin fans. While the control quality won't be as precise as with a PWM fan, it should still function. The fan connector features a plastic ridge that secures it in place. Align the 3 pin fan plug with this ridge and insert it into the four pin port. It may seem unusual at first, but it will work.
4 pin PWM fan headers are compatible with 3 pin fans too. The control signal won’t be as precise as with a PWM fan, but it should still function. The fan plug features a plastic ridge that secures it in place. Align the 3 pin fan plug with that ridge and connect it to the four pin port—it may look unusual, but it will work. It should remain somewhat controllable, though you might worry about consistent speed changes that could affect your CPU if it doesn’t adjust properly.
It operates at maximum velocity. The 3-pin configuration provides 12v power, ground, and speed detection. The fourth wire transmits the signal for adjustable speed.
Saberus:
The device will operate at maximum velocity. Only the 3-pin model supports 12v power, ground, and speed-sense. The fourth wire transmits the signal for variable speed.
This isn't entirely accurate. Three-pin fans typically have their speed regulated by voltage. If the motherboard allows it, speed adjustments are possible, though fewer options exist.
Most boards use a 1-volt or 0.5-volt adjustment for 3-pin fans. I’m currently using two 3-pin fans on my Asus Z77-A board. Their speeds change based on temperature readings. With only six potential speeds visible, it seems they’re cycling through 7 to 12 volts in one-volt steps. Seven volts is the minimum voltage any 12-volt fan can handle and reliably operate.
Some budget boards restrict 3-pin fans to full speed only when connected to a 4-pin header—something I’ve noticed on many Foxconn models. Generally, most retail motherboards can recognize and manage 3-pin fans connected to 4-pin headers.
Saberus :
The setup will operate at maximum velocity. The 3-pin model only provides 12v power, ground, and speed-sense. The fourth wire handles the signal for variable speed. Not entirely accurate. Three pin fans typically use voltage to control their speed. As long as the motherboard is compatible, speed can be adjusted, though fewer options are available. Most boards support a 1 volt or 0.5 volt change for 3-pin fans. I’m currently using two 3-pin fans on my Asus Z77-A board, which adjust their speeds based on temperature readings. With only six possible speeds, they seem to cycle through 7 to 12 volts in one-volt steps. Seven volts is the minimum voltage any 12-volt fan can handle and always function properly. Some budget boards only allow three-pin fans at full speed when connected to a four-pin header, which I’ve noticed on many Foxconn models. Generally, most retail motherboards can detect and manage three-pin fans connected to four-pin headers.
Can you clarify what this adjustment feature is called and how to verify if your board supports it?
Can you explain the name of the feature that allows voltage adjustment? I'm not sure how to verify if my motherboard has this capability. It seems your motherboard does support it. The only fan header that isn't adjustable (based on online reports) is the SYSFAN1 3-pin connector. Both CPUFAN1 and SYSFAN2 connectors should work. I haven't tested it myself yet.
Can you explain the name of the feature that helps with voltage adjustment? I'm not sure how to verify if my motherboard has it. It seems your board does support it. The only fan header that isn't adjustable (based on online info) is the SYSFAN1 3-pin connector. Both CPUFAN1 and SYSFAN2 should work. I haven't tested it myself. Thanks a lot!