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AnsweredNo RPM reading on GPU fan in Precision XOC

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petmic10
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2017/08/13 06:36:56 (permalink)
As you can see in the picture I have "G" selected in Precision but it's not showing a RPM reading. I'm able to control the fan with the fan curve but sadly no RPM reading. Is this by design? or is something EVGA needs to fix?
 
Keep in mind I'm using two fans in push/pull with a 3 pin fan splitter. Could this be causing an issue? Is anyone else having this problem?
 


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Sajin
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Re: No RPM reading on GPU fan in Precision XOC 2017/08/13 07:55:19 (permalink)
I believe that is normal for a hybrid card.


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bcavnaugh
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Re: No RPM reading on GPU fan in Precision XOC 2017/08/13 08:22:29 (permalink)
Set the Fan to say 50% and see if it reads the Blower Fan RPM.
It is the First one that has the Green G below it.
You also have not say that your Blower Fan is spinning at all.
The Fan will stay Off until you hit 64C or even higher. I have mine set to 40%.
You only have One Fan so the Fan setting for Memory and Power will never work.
PXOC will not read the Fan Speed on the Radiator.
On the "3 pin fan splitter" make sure you do not pull to much power.
You may also want to use the Fan Headers off your MB as well to use two Fans in Push/Pull Mode.

 
post edited by bcavnaugh - 2017/08/13 08:33:59

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petmic10
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Re: No RPM reading on GPU fan in Precision XOC 2017/08/13 09:06:11 (permalink)
Thanks for the response. I should have been more clear, this is a Hybrid card and has a fan on the card and a fan on the radiator. I'm using two fans on the radiator.
 
The blower fan(on the card itself = P slider in Precision) works and registers rpm. The gpu fan(G slider in Precision) seems to control the fan(s) on the radiator, but no rpm registers in Precision or any other monitoring software I use. The fans work and run based on my fan curve I set but I was just wondering why no rpm? Technically there is only two pins on the lead wire coming from the pump so I assume it can't read rpm without the 3rd pin?

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bcavnaugh
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Re: No RPM reading on GPU fan in Precision XOC 2017/08/13 09:18:19 (permalink) ☄ Helpfulby petmic10 2017/08/13 14:33:53
If you use One Fan will it show the RPM?
Also if your 3 pin fan splitter has 3-Pin to two 3-Pins this can cause issues.
Use a 3 pin fan splitter that has end with 2 Pins and one with 3-Pins.
 
Nice that the FTW3 Hybrid can control the Radiator Fans. 
 
This is the Type of Splitter you should use.

 
But with this "Technically there is only two pins on the lead wire coming from the pump" Yes you need the 3rd Pin to read the RMP.
post edited by bcavnaugh - 2017/08/13 09:25:57

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howdy2u2
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Re: No RPM reading on GPU fan in Precision XOC 2017/08/13 09:30:44 (permalink) ☼ Best Answerby petmic10 2017/08/13 14:33:43
petmic10
Thanks for the response. I should have been more clear, this is a Hybrid card and has a fan on the card and a fan on the radiator. I'm using two fans on the radiator.
 
The blower fan(on the card itself = P slider in Precision) works and registers rpm. The gpu fan(G slider in Precision) seems to control the fan(s) on the radiator, but no rpm registers in Precision or any other monitoring software I use. The fans work and run based on my fan curve I set but I was just wondering why no rpm? Technically there is only two pins on the lead wire coming from the pump so I assume it can't read rpm without the 3rd pin?


Correct, it needs to have a tach/ RPM wire
2 wires= pwr & grnd
3 wires= pwr & grnd + tach
4 wires= pwr & grnd + tach + pwm
 
Good read here if interested.
post edited by howdy2u2 - 2017/08/13 09:36:03

 
 
 
 
 
 
 
 
 
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petmic10
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Re: No RPM reading on GPU fan in Precision XOC 2017/08/13 09:34:05 (permalink)
bcavnaugh
If you use One Fan will it show the RPM?
Also if your 3 pin fan splitter has 3-Pin to two 3-Pins this can cause issues.
Use a 3 pin fan splitter that has end with 2 Pins and one with 3-Pins.
 
Nice that the FTW3 Hybrid can control the Radiator Fans. 
 
This is the Type of Splitter you should use.

 
But with this "Technically there is only two pins on the lead wire coming from the pump" Yes you need the 3rd Pin to read the RMP.




I switched it to one fan and still no rpm. That's the splitter type I'm using.
 
Only two pins so it can't read rpm only voltage.

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petmic10
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Re: No RPM reading on GPU fan in Precision XOC 2017/08/13 09:36:01 (permalink)
howdy2u2
petmic10
Thanks for the response. I should have been more clear, this is a Hybrid card and has a fan on the card and a fan on the radiator. I'm using two fans on the radiator.
 
The blower fan(on the card itself = P slider in Precision) works and registers rpm. The gpu fan(G slider in Precision) seems to control the fan(s) on the radiator, but no rpm registers in Precision or any other monitoring software I use. The fans work and run based on my fan curve I set but I was just wondering why no rpm? Technically there is only two pins on the lead wire coming from the pump so I assume it can't read rpm without the 3rd pin?


Correct, it needs to have a tach/ RPM wire




Thank you. I thought so. 
 
It's using a voltage signal to control the fans. 

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howdy2u2
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Re: No RPM reading on GPU fan in Precision XOC 2017/08/13 09:38:10 (permalink)
petmic10
 
 
Thank you. I thought so. 
 
It's using a voltage signal to control the fans. 




Your welcome, and yes it is voltage controlled

 
 
 
 
 
 
 
 
 
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