What is a CPU fan header?

What is a CPU fan header?

What is CPU FAN (CPU_FAN)? CPU_FAN, standing for “CPU Fan”, is the main header used by the motherboard, and the BIOS and any other software (SpeedFan, HWMonitor, NZXT CAM, etc), to regulate and control the CPU’s thermals depending on the load by controlling the fan(s) speed (if you’re using some sort of splitter).

What is the function of fan headers?

The CPU fan header is for the CPU heatsink fan (or fans) only. The system senses the presence of this during startup, and controls the RPMs to regulate air flow as necessary. Connect the rear exhaust fan directly to the PSU using the Molex connectors (and adapters). Let it run at full speed for max hot air exhaust.

What is the function of CPU fan?

CPU fan – a fan on top of a computer processor. It helps pull and blow hot air off the processor, helping keep it cooler. Power supply fan – a fan located inside a power supply.

What are 4 pin headers for?

A four pin connector is a little different than the three pin connector since it has the extra (fourth) wire used for controlling and sending signals to the fan, which likely has a chip on it that tells it to slow down or speed up (in addition to the other wires the three pin connector has).

What is CPU fan and system fan?

The difference between the CPU fan and the system fan is that the former is the one attached to the heatsink of the processor, and the latter is generally on one of the sides of the case to exhaust hot air.

What’s the difference between CPU fan and CPU opt?

The crucial difference between a CPU OPT header and a CPU FAN is that CPU OPT headers do not prevent your PC from booting or automatically shut it down if they do not detect a functioning CPU cooler; they therefore lack an important safeguard compared to CPU FAN headers when it comes to CPU cooling.

What is a CPU fan connector?

A motherboard fan connector is a small three or four-pin connector located on the motherboard. SYSFAN and CPUFAN are technically the same connector, but SYSFAN is used to connect PC case fans, while CPUFAN is used for the fan attached to the CPU heat sink.

Can I plug CPU fan into system fan?

Yes! Perfectly fine! Another option is to connect the second fan directly to the PSU using a Molex connector.

What is the function of a fan?

Fans are used for circulating air in rooms and buildings; for cooling motors and transmissions; for cooling and drying people, materials, or products; for exhausting dust and noxious fumes; for conveying light materials; for forced draft in steam boilers; and in heating, ventilating, and air-conditioning systems.

Does CPU fan have to be 4 pin?

You use 4pin for cpu coolers. They incorporate a pwm pin (high efficiency speed control). You use 3 pin fans for case fans. They use variable voltage speed control.

How do you use a CPU fan?

How to Manually Power on CPU Fans

1. Start or restart your computer.
2. Enter the BIOS menu by pressing and holding down the appropriate key while your computer is starting up.
3. Locate the “Fan Settings” section.
4. Look for the “Smart Fan” option and select it.
5. Select “Save Settings and Exit.”

Can I use a CPU fan header for a case fan?

Yes, you can connect case fans to CPU_fan headers. Or you can use fan splitters to connect two case fans to a single chassis_fan header.

Is there a 3 pin fan header on a desktop?

Fan has a 3-pin power connector; desktop board has a 4-pin fan header: Note: when using a 3-pin power connector with a 4-pin fan header, the fan will always be on; there is no fan control.

Is the CPU opt fan header independent of the CPU?

Last edited by Alex0915; 09-08-2018 at 10:13 AM . The CPU OPT fan header is slaved to the main CPU fan header. Its control cannot be set independently of the the CPU fan header. Thanks, just what I needed to know!

What’s the purpose of a header in PHP?

header() is used to send a raw HTTP header. See the » HTTP/1.1 specification for more information on HTTP headers. Remember that header() must be called before any actual output is sent, either by normal HTML tags, blank lines in a file, or from PHP.

Is there a 4 pin fan on a motherboard?

01 Mar 1998 Motherboard CPU Fan 4 Pin header Connector. Colors may change. Chassis and CPU fans may use either 3-pin or 4-pin power connectors. 3-pin connectors are usually used for the smaller chassis fans with lower power consumption. 4-pin connectors are usually used by CPU fans with higher power consumption.