How do I fix my HP CPU fan not detected?

Check the following:
  1. Make sure the fan power cable is connected firmly to the motherboard.
  2. Check for any objects that might stop the fan.
  3. With the power off and the power cable disconnected, gently spin the fan with your fingers to make sure the fan is not stuck.

What does it mean 511 CPU fan not detected?

It means what it says – the CPU cooling fan is either disconnected or has failed. It should be repaired or replaced to avoid damage to your computer caused by overheating.

What is a chassis fan on a motherboard?

“Chassis Fan” is a fan that mounts on a PC case’s carcass: either from inside at the front, on the door, at the back (exhaust of the hot air), at the top, or (very rarely) to the bottom or the back wall of the case.

Why is my fan not being detected?

Secure CPU fan connections

If any of the CPU fan cables are loose or connected to the wrong socket your computer won’t recognize that the fan is plugged in and will prompt the “511-CPU fan not detected” error. Turn off your device and unplug everything. Disconnect and then reconnect the cables ensuring they are secure.

How do I turn off fan error?

Disable CPU Fan speed monitoring in BIOS

Navigate to the aforementioned Advanced settings. Look for the Monitoring (Monitor) section. Change the CPU Fan Speed to Ignore and confirm changes. Boot into Windows and look for improvements.

Do fans need to be connected to motherboard?

If you want to have your mobo measure the speeds of your case fans, you must plug them into the mobo ports so that the Speed Pulse signals from the fan motors can be sent back to the mobo on Pin 3 of each port. But interestingly, CONTROL of fan speed does NOT link to this signal.

Why is the CPU fan not working?

If your BIOS has been misconfigured or is outdated, you might have problems with your fan. If your CPU fan does not spin, the issue could be anywhere from the fan, the motherboard, to the power supply unit. The fan can get clogged with dust and lint hence preventing it from spinning.

Where do fan cables go on motherboard?

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. There’s no trick aside from lining up the notch on the connector with the guide on the header.

How do you power a chassis fan?

Can I plug fans into PSU?

Yes. Those fans are either/or. You can use either the 3-pin motherboard connector or the 4-pin molex direct from the power supply.

Can I connect fans to PSU?

There are two common ways fans connect directly to a power supply. Either using a standard 4 pin power connector from the power supply, or by using an adapter board that converts the standard power supply connector to a motherboard style pin header connector.

Can 4 pin fan connect to 3 pin motherboard?

Please Note: You can connect a 3 Pin Fan to a 3 Pin or 4 Pin header on the motherboard. The fan will function normally no matter type of fan header is used. 1. The fan connector will have two guides (1) and these will need to line up with the tab (2) that is on the motherboard fan header.

How do you install a chassis fan?

How do I know if my fan is intake or exhaust?

What is the difference between a 3 pin and 4 pin fan?

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).

Can I connect a 3 wire fan to a 4 wire connector?

1 Answer. Show activity on this post. Apparently a 3-pin fan can plug directly into a 4-pin socket. Two of the pins provide power to the fan, the 3rd provides an RPM pulse to the motherboard to read the speed.

Can I connect a 3 wire fan to a 2 wire connector?

The 3 Pin fan will fit onto the 2 pin you just need to match the holes and the pins and see which two contacts make the fan function.

Can 3 pin case fans be controlled?

The speed of BOTH 3-pin and 4-pin fans can be controlled, but the method is different for the two types. For 3-pin fans, the connections to it are Ground to Pin #1, +VDC (varying) to Pin #2, and Speed signal on Pin #3.

Is PWM better than 3 pin?

The 4th wire is PWM or Pulse Width Modulation and it does a better job at reducing and controlling fan speed than reducing the voltage for a 3 pin fan. There is no disadvantage, and depending on the board you can change certain fan headers to how they control the fan.

How do you change a 3 pin fan to 4 pin?

4-pin fans have the exact same setup as 3-pin fans, but add a 4th pin (PWM), which basically acts as an “on-off switch”, since PWM at its root works as a “work for x amount of time, then stop” method, and the easiest way to do that with a fan is by turning the power on and off at regular intervals.

How can I lower my 3 pin fan speed?