How to slow down 4 pin fans

Daris · Jul 7, 2014

I want to slow down my fans. My single intake fan and one exhaust fan that seem to always spin around 1500rpm. I was running 3 pins but read that you get more control with 4 pin so i changed them to the following. The intake was changed to the Cougar CF-V12HPB. The exhaust fan was changed to the Lepa Casino 1C (LPVC1C12P-BL). I run Tiatanfall and BF4 COD Ghost all on max sttings and have never seen the cpu go over 44c. It idles between 29c and 32c. Ive looked thru the manual also. Id be willing to get a fan controller if thats what i need. Can anyone help me out with this??? Much appreciated. Below is a alist of my hardware.

ASUS M5A99FX PRO R2.0
AMD FX6300 ( overclocked to 3.8)
CORSAIR Vengeance 8GB( 4x2)CMZ8GX3M2A1866C9B
COOLER MASTER Seidon 120V
EVGA GTX 660TI 3GB FTW Edition
Lepa Casino 1C (LPVC1C12P-BL)
Cougar CF-V12HPB
Raidmax RX-535AP (535W)
Antec P182b

babachicken · Jul 7, 2014

you cant slow down 4 pin cpus... they are controlled automatically by the bios

Alec Mowat · Jul 7, 2014

Are they connected to your motherboard, or the power supply?

Alec Mowat · Jul 7, 2014

babachicken :

You can adjust the fan profiles in the BIOS.

getochkn · Jul 7, 2014

usually ahve to go into the bios and sometimes set it to 3pin or 4pin (4 pin is also known as pwm)

byza · Jul 7, 2014

That motherboard uses Fan Xpert to control fan speeds. Download it from the Asus website.
https://www.asus.com/Motherboards/M5A99FX_PRO_R20/HelpDesk_Download/

Daris · Jul 7, 2014

Alec Mowat :

They are controlled by the motherboard

Daris · Jul 7, 2014

byza :

I was thinking the same thing but when i connected the fans it only gives me the option of setting the profiles for the cpu fan and case fan. They are both 4 pin. One is the pump for the cpu cooler and the other is the fan for the radiator. I cant seem to get the other fans ive installed to pup up in the menu to adjust the profiles

byza · Jul 7, 2014

If they are connected to the motherboard, you can control them through the bios, or through the Asus Fan Xpert software. You can also use third party software, but it's probably easiest to use the Asus software.

byza · Jul 7, 2014

Daris :

So you mean the pump is connected to the CPU fan port, the rad-fan is connected to the case fan port and the other fans are connected to the sys fan ports?

Daris · Jul 7, 2014

byza :

Daris :

So you mean the pump is connected to the CPU fan port, the rad-fan is connected to the case fan port and the other fans are connected to the sys fan ports?

Exactly, as far as controlling the fans thru the fan xpert program i cant seem to get the other fans to show as an option to change the profile.

byza · Jul 7, 2014

Daris :

byza :

Exactly, as far as controlling the fans thru the fan xpert program i cant seem to get the other fans to show as an option to change the profile.

Go into the bios and make sure Chassis Q-fan control is enabled.
Chapter 3, page 28.
http://dlcdnet.asus.com/pub/ASUS/mb/SocketAM3+/M5A99FX_PRO_R20/E7472_M5A99FX_PRO_R2.pdf

Daris · Jul 7, 2014

byza :

Daris :

Go into the bios and make sure Chassis Q-fan control is enabled.
Chapter 3, page 28.
http://dlcdnet.asus.com/pub/ASUS/mb/SocketAM3+/M5A99FX_PRO_R20/E7472_M5A99FX_PRO_R2.pdf

Thanks alot, now the fans idle at around 800rpms. I couldnt find the answer for the life of me.

byza · Jul 7, 2014

Glad I could help.

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