Does the SYS fan matter on motherboard?

What does SYS fan mean on a motherboard?

Motherboard manuals more frequently use the terms “SYSFAN” and “CPUFAN” when referencing these connectors. 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.

Is SYS fan necessary?

You can safely use the computer without a sys_fan as long as the cpu and the other components run at temperatures inside their safety ranges, which is quite probable that they do, even without system fan, as long as the computer isn't under heavy load or naturally power hungry.

What is a SYS fan?

Sys fan means system fan,which indicates the fan screwed to the chassis,bringing air in/out of the vents on the case. Cpu opt is when you go watercooling,where you may have two fans,like dual radiator,and need to connect it to a fan header.

Can I use sys fan for CPU?

Technically you can. However if you don't have a fan plugged into the CPU header you will get an error upon POST, it can be turned off in the BIOS, I would run both fans off the system fan headers to keep them at the same RPM and just turn off the error in the BIOS.

Is SYS fan for case fans?

I have plugged in my AIO CPU cooler fans into the CPU fan socket and the Radiator fan from my GPU cooler into a Sys Fan socket. Can I plug in a case fan cable to a Sys Fan socket or should it be plugged into the Pump Fan mobo socket?? Any help is appreciated. I am a newb.

Is it OK to run a PC without fans?

If so yes it should be fine. If you are talking about your cpu fan, no thats not okay. If you are talking about a case fan just monitor your temps, if you see anything overheat maybe just take side panel of your case off until you get a new fan so you can get some airflow in your case.

Can I use PC without rear fan?

Looking at your setup, no you shouldn't need that rear case fan. The airflow from the push/pull should be enough to force the hot air out of the case.

Are CPU fans interchangeable?

Currently, a lot of CPU coolers are compatible with most of the popular socket types although there are some only support one socket type. … …if you have a motherboard like this, which is relatively un-cluttered around the CPU area, you can probably fit just about any compatible CPU cooler on there without a problem.

Are SYS fans PWM?

So NO, SYS fans don't have PWM … but YES, PWM fans can be controled the old way (with voltage) … so my new noctuas should work in my case (since VCC will tell them to always stay on, while +12V/speed control will tune their speed the old way).

Which way do PC fans flow?

When mounting case fans, air flows across the open side towards the side with the protective grille, like so: So the open side of the fan should face outside the case for intake fans on the front or the bottom, and it should face inside the case for fans on the rear or top.

Can you plug a 3 pin fan into a 4 pin?

1 Answer. 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. The 4th pin is for PWM speed control.

Does it matter which system fan header I use?

The only one that makes a difference is the cpu fan. Make sure that one is plugged into the "cpu fan" header on the m/b. Other than that, the header used makes no difference.

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