Can I connect a fan to the CPU_OPT header of my motherboard?

[RRGT19]

Hi,
My motherboard is an Asus Strix H270F, which only has 2 x Chassis Fan connector(s) and I have 3 fans in my case.
Can I install a fan to the CPU_OPT header?.
What consequences it has?.

[Thorimus]

Check your motherboard manual and see what it's supposed to be used for. It might run at a different speed to your other fans, but it should be fine.

[Lord Nicoll]

5 minutes ago, RodoGodo19 said:

Hi,
My motherboard is an Asus Strix H270F, which only has 2 x Chassis Fan connector(s) and I have 3 fans in my case.
Can I install a fan to the CPU_OPT header?.
What consequences it has?.

the CPU_OPT fan header is just a 2nd mirrored CPU fan header, it can still be 100% controlled independent of the CPU one but is by default a mirror. It's usually used for pumps or dual rads on AIOs.

[RRGT19]

37 minutes ago, Thorimus said:

Check your motherboard manual and see what it's supposed to be used for. It might run at a different speed to your other fans, but it should be fine.

 

33 minutes ago, Lord Nicoll said:

the CPU_OPT fan header is just a 2nd mirrored CPU fan header, it can still be 100% controlled independent of the CPU one but is by default a mirror. It's usually used for pumps or dual rads on AIOs.

The manual doesn't mention anything about CPU_OPT, sadly.

Link: http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/STRIX_H270F_GAMING/E12124_STRIX_H270F_GAMING_UM_WEB.pdf?_ga=1.69276309.405717578.1491335094

 

Also, in BIOS there isn't any CPU_OPT option to adjust.

My motherboard has an AIO_PUMP header too but, I don't use it, I have an air cooler.

Can someone help me?, I would like to run the fan at full speed.

If I put my hand next to the fan, is not moving a lot of air like the others are doing.

 

[Maxinfamily]

Theres an asus fan utility which allows you to controll every fan, look for it in the asus support web (AI Suite 3, which includes the "Fan Xpert 2+" thats the version for my Asus Z97-P). Anyway, I wouldnt worry if my fan is controlled by the cpus temperature unless It refigerates my gpu radiator or something like that.

[Lord Nicoll]

51 minutes ago, RodoGodo19 said:

 

The manual doesn't mention anything about CPU_OPT, sadly.

Link: http://dlcdnet.asus.com/pub/ASUS/mb/LGA1151/STRIX_H270F_GAMING/E12124_STRIX_H270F_GAMING_UM_WEB.pdf?_ga=1.69276309.405717578.1491335094

 

Also, in BIOS there isn't any CPU_OPT option to adjust.

My motherboard has an AIO_PUMP header too but, I don't use it, I have an air cooler.

Can someone help me?, I would like to run the fan at full speed.

If I put my hand next to the fan, is not moving a lot of air like the others are doing.

 

you need to download software called AI suite 3 from ASUS's page for your motherboard, it has fan tuning and 4 preset profiles for fan speed (silent, normal, turbo and max)

[Princess Luna]

I have an old Core2Duo pc that the motherboard CPU-FAN broke and I use a Chassi-FAN instead, the stock cooler runs max all the freaking time but it works and this is just a storage computer so who cares