Table of Contents
Why do CPU fans have 4 wires?
A 2-wire fan has power and ground terminals. A 3-wire fan has power, ground, and a tachometric (“tach”) output, which provides a signal with frequency proportional to speed. A 4-wire fan has power, ground, a tach output, and a PWM-drive input.
Do CPU fans need 4 pin?
CPU fans are always placed on a copper or aluminum heatsink use either a 3 pin fan or a 4 pin fan connector. The conventional 3 pin connectors are designed for small fans with low power consumption. While 4 pin fan connectors are designed for modern CPUs with higher power consumption.
Can I plug a 3 pin CPU fan into a 4 pin?
A 3-pin case fan can easily be connected to a 4-pin connector on the motherboard. The fourth pin is simply left blank in this configuration. In most cases, it will then run unregulated at a fixed speed. Some newer boards offer the possibility to adjust the fan speed by voltage.
Will a 3 pin CPU fan work on a 4 pin motherboard?
A 3-pin case fan can easily be connected to a 4-pin connector on the motherboard. The fourth pin is simply left blank in this configuration. In most cases, it will then run unregulated at a fixed speed.
Can a 3 pin fan go into a 4 pin slot?
Distinguished. The 4th pin allows PWM controlled speed, 3 pins will plug into 4 pin sockets but control signal won’t be sent and fans will run at max. 3 pin fans don’t have PWM controlled speed. So it’s fine.
How do you connect a 4 pin fan to a 3 pin fan controller?
The 4-pin fans will need one fan splitter, but it MUST be a 4-pin splitter. Use that to connect two of these to the SYS_FAN1 header, and the third fan on the other SYS_FAN2 header. Then you can have your mobo control all three of them from your SYS_FAN1 and 2 headers.
Where do 4 pin fan connectors go?
As typical motherboard fan connector is a three or four-pin connector attached to the end of a PC fan’s wire. This is attached to the three or four-pin fan header on the motherboard.
What is the 4 pin CPU power connector called?
1. The P4 connector is a 12V power supply cable used with motherboards that have an Intel Pentium 4 or later processor. Today, the connector is a standard power connector and is used with both Intel and AMD motherboards.