CPU-OPT malfuction?

[panoverclockers]

I bought the GA-Z97X-Gaming 5. I added 2 fan's for my corsair H90 140mm in push\pull configuration. I have connected the pull fan on the cpu header and the pull fan on the cpu-opt header. The fan connected on the cpu header is running all the time with up and down rpm speed according the cpu usage. But the pull fan that is connected on the cpu-opt header is not running\moving at all. The fan that is connected on the cpu-opt starts to run only when i use the computer for something ''heavy'' like gaming on ultra settings. Why is that? Is there any way to fix this?

I Thought cpu header and cpu-opt they are like ''twins'' controlled from the same controller and that way 2 fan's are working like one.

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Motherboard: http://www.gigabyte.com/products/product-page.aspx?pid=4953#ov

Fan's: http://www.noctua.at/main.php?show=productview&products_id=84&lng=en

[ir_cow]

Check your bios settings and see is the opt fan is disabled or set differently. Not the first time it would be by default.

 

 

Also does your h90 not have a second fan connector on it? The h80/100 does I know for sure. I assume the rest do also.

[panoverclockers]

Check your bios settings and see is the opt fan is disabled or set differently. Not the first time it would be by default.

 

 

Also does your h90 not have a second fan connector on it? The h80/100 does I know for sure. I assume the rest do also.

Hi and thank you for your reply.

Bios settings, they are the same\identical for both headers cpu and cpu-opt.

H90 doesn't have  a second fan connector, actually doesn't have any fan connector it comes with just 1 pwm 140mm fan.

Also i dont risk to use a Y cable because these fan's have a high max input power 6,6 W.

6,6+6,6=13,2W and the cpu header is 12W. (If i am wrong here please help\advice).

Y cable: http://www.noctua.at/main.php?show=productview&products_id=74&lng=en

Edited November 1, 2014 by panoverclockers

[SpikeSoprano]

Are the cpu fan speed and the cpu opt speed both set to normal, this should make them both work at the same speeds. Also did you flash to the latest stable bios.

Edited November 1, 2014 by SpikeSoprano

[panoverclockers]

Are the cpu fan speed and the cpu opt speed both set to normal, this should make them both work at the same speeds. Also did you flash to the latest stable bios.

Yes for both questions.

[ir_cow]

Duno what to tell you. Try changing the opt fan settings to performance and see what happens.

 

Also do you have the fan software install? That may override any bios options you have set. Usually most motherboards have some software suite that comes with the drivers.

[ccokeman]

Try the fan on another header and see if it exhibits the same behavior. 

[panoverclockers]

Try the fan on another header and see if it exhibits the same behavior. 

In sys fan is working fine, it seems that the cpu-opt header is faulty?

[ccokeman]

Is that header A PWM header? The CPU Opt header is marked as a water cooling style header. I would say try your pump on that header rather than a fan and keep the fans connected to the system fan headers. 

[panoverclockers]

Is that header A PWM header? The CPU Opt header is marked as a water cooling style header. I would say try your pump on that header rather than a fan and keep the fans connected to the system fan headers. 

Yes, ALL the headers on this motherboard are 4pin PWM.  http://www.gigabyte.com/products/product-page.aspx?pid=4953#ov

Also the cpu-opt header is suitable for water pump and for 4 pin pwm fan.

So i have the water pump connected direct on the PSU with 3 pin adapter, thats way i have the pump to run in full speed all the time.

And i have the cpu header and the cpu-opt header free for 2 fan's in push\pull configuration.

So i added 2 identical fans with high static pressure, these >---> http://www.noctua.at/main.php?show=productview&products_id=84&lng=en

BUT the fan connected on the cpu-opt header runs\spin on full speed when i start the computer,then when the system is on windows the fan completely stops dead silence, starts only in case i use the pc\cpu for heavy stuff like gaming and such.

I added 3 attachments, attachment A are details for the cpu-opt header. attachment B on aida extreme when in IDLE you can see only 1 cpu fan exist\running and attachment C when i started the aida cpu stress a second fan appears.

Its seems that the fan on the cpu-opt header is sleeping and is jump and run only when extra help for cooling is needed?

http://postimg.org/gallery/nqy0borm/675309fe/

[ir_cow]

A lot of the times with motherboards that have extra 4pin pwm ports usually have a jumper or bis settings (maybe both). To have it activated. Even worse some that have 4pin aren't really pwm ports. Just a thought..

 

Anyways saying it goes full speed than down to low or off in windows points to fan settings either in the bios or windows software. Like having a custom profile that sayings not to speed up until X temp.

[panoverclockers]

A lot of the times with motherboards that have extra 4pin pwm ports usually have a jumper or bis settings (maybe both). To have it activated. Even worse some that have 4pin aren't really pwm ports. Just a thought..

 

Anyways saying it goes full speed than down to low or off in windows points to fan settings either in the bios or windows software. Like having a custom profile that sayings not to speed up until X temp.

No any windows software for fan's is installed. In bios the cpu and cpu-opt header's are in normal profile (this is the auto).

Bios profiles:

Normal Allows the fan to run at different speeds according to the CPU temperature.

Silent Allows the fan to run at slow speeds.

Manual Allows you to control the fan speed under the Fan Speed Percentage item.

Full Speed Allows the fan to run at full speeds.

Iv tried everything with no results.

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I don't know how exact the Manual profile works, i dont understand the Speed Percentage.....