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X79-Deluxe CPU_OPT fan header not working

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  • Motherboards
  • Fan
  • CPUs
  • Components
Last response: in Components
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May 1, 2014 5:45:47 PM

I recently installed the H110 and ran Prime95 for about an hour and ended up with an average of 70 °C on all cores, which seemed a little high on a i7-4930k clocked at default 3.4GHz.

After a while I realized that one of the fans that was plugged into the opt fan connecter on the X79 didn't work.
I switched the 2 fan connectors and got the same result with the other fan.

The fan thats plugged into that slot is not getting detected in the BIOS or AI Suite 3.

More about : x79 deluxe cpu opt fan header working

a c 1530 V Motherboard
a c 1078 à CPUs
May 1, 2014 5:47:50 PM

It's a dead fan header time for an RMA.
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a c 374 V Motherboard
a c 403 à CPUs
May 1, 2014 5:50:10 PM

Checked what it says about that header in your mobo manual? What OPT means?
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Related resources
a c 1530 V Motherboard
a c 1078 à CPUs
May 1, 2014 5:55:11 PM

OPTIONAL.
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May 1, 2014 5:58:54 PM

Yeah I couldn't think of anything else than OPTIONAL
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a c 1530 V Motherboard
a c 1078 à CPUs
May 1, 2014 6:01:28 PM

It's a dead fan header get the board replaced.
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May 1, 2014 6:08:16 PM

SR-71 Blackbird said:
It's a dead fan header get the board replaced.


I thought about just putting a fan splitter on the normal CPU fan header for both radiator fans.
Is there any downside to that?

Because I'd rather pay like 10 bucks for a splitter than going through an annoying replacement process just becuase of one broken fan header that I can easily work around.
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May 1, 2014 6:16:42 PM

Are there no 4-Pin to 2x 3-Pin connectors? So adjusting the speed on one fan would put it down for both.
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a c 374 V Motherboard
a c 403 à CPUs
May 1, 2014 6:29:42 PM

Have you only got 1 cpu fan header? My ASRock has 2. I thought with h100 the pump went to the cpu fan header and the fans elsewhere?
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Best solution

a c 1530 V Motherboard
a c 1078 à CPUs
May 1, 2014 6:29:44 PM

Missed them on my first search , hope it works for you.
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