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[Official] NVIDIA GTX 780 Owner's Club - Page 1797

post #17961 of 24920
After a lot of tweaking I've started to wrangle my fans into submission. Some serious weirdness going on still, though...

First of all, the way I ran the fan wires (in a tight bundle) caused severe-enough noise on the RPM-sense wire to trigger fault conditions (causing the GPU BIOS to ramp the fan up to 100% periodically). After re-routing my cables, low-speed operation now works as expected. Yay!

That's half the problem solved. The fans now run at low speed and can be adjusted (between 600 and 1300 RPM) perfectly! As long as I stay in this range things are ok.

Now... if I attempt to push the fan speed any HIGHER than 1300RPM, the problem comes back. The fans start going up-and-down between the speed I set and 100%, over and over.


Anyone have any idea how to fix this? I'd love to be able to do a smooth ramp all the way up to 1800 RPM (which is the maximum speed of these Arctic F9 fans).
Edited by Leapo - 3/3/14 at 4:17pm
post #17962 of 24920
How are those of you with the EVGA ACX SC GTX 780 liking your cards? I'm considering picking one up Wednesday at the TigerDirect/CompUSA while I'm up there. It's the same price as Newegg ($509.99 AMIR)
 
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post #17963 of 24920
Quote:
Originally Posted by Leapo View Post

After a lot of tweaking I've started to wrangle my fans into submission. Some serious weirdness going on still, though...

First of all, the way I ran the fan wires (in a tight bundle) caused severe-enough noise on the RPM-sense wire to trigger fault conditions (causing the GPU BIOS to ramp the fan up to 100% periodically). After re-routing my cables, low-speed operation now works as expected. Yay!

That's half the problem solved. The fans now run at low speed and can be adjusted (between 600 and 1300 RPM) perfectly! As long as I stay in this range things are ok.

Now... if I attempt to push the fan speed any HIGHER than 1300RPM, the problem comes back. The fans start going up-and-down between the speed I set and 100%, over and over.


Anyone have any idea how to fix this? I'd love to be able to do a smooth ramp all the way up to 1800 RPM (which is the maximum speed of these Arctic F9 fans).


How about a nice fan controller and you can set the speeds you want with ease and you forget about this problem and go back to a nice gaming session? wink.gif
(sorry but its my name: Occamrazor= the simplest solution is [almost] always the right [better]one!) thumb.gif

Cheers

Ed

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post #17964 of 24920
Quote:
Originally Posted by OccamRazor View Post

How about a nice fan controller and you can set the speeds you want with ease and you forget about this problem and go back to a nice gaming session? wink.gif
I've looked, but all the fan controllers on the market seem pretty badly made and/or lacking in the features I need.

Do you have a particular one in mind? Corsair Link looks like it would work perfectly, but people are complaining the software it comes with is horrible and buggy.

And I still say a BIOS that doesn't freak-out when aftermarket fans are attached is the most elegant solution (and would help a lot of people). It's just that nobody seems to have found a way to do that yet...
post #17965 of 24920
picking up my 780 tomorrow and can't wait. I noticed that one of my braided cable extensions is not 8pin for the graphics card. I'm thinking of ordering something like this http://www.performance-pcs.com/catalog/index.php?main_page=product_info&products_id=35134
Should this do the trick? Or should I be worrying about the quality of the cables and just use the ones on the power supply even though they are ugly and I'm trying to do pretty :-) Any help would be great.
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post #17966 of 24920
Quote:
Originally Posted by pez View Post

How are those of you with the EVGA ACX SC GTX 780 liking your cards? I'm considering picking one up Wednesday at the TigerDirect/CompUSA while I'm up there. It's the same price as Newegg ($509.99 AMIR)

Fantastic build quality, thoughtful design. Make sure you have plenty of airflow otherwise they'll heat up your case like an easy-bake oven. Overall, I like them.
    
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post #17967 of 24920
Quote:
Originally Posted by Leapo View Post

I've looked, but all the fan controllers on the market seem pretty badly made and/or lacking in the features I need.

Do you have a particular one in mind? Corsair Link looks like it would work perfectly, but people are complaining the software it comes with is horrible and buggy.

And I still say a BIOS that doesn't freak-out when aftermarket fans are attached is the most elegant solution (and would help a lot of people). It's just that nobody seems to have found a way to do that yet...

Ill ask a friend of mine that is out in the market for a good one, ill keep you posted!


Cheers

Ed

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post #17968 of 24920
Quote:
Originally Posted by OccamRazor View Post

Ill ask a friend of mine that is out in the market for a good one, ill keep you posted!

Small update: I just untied all the fan cables and let them hang freely (far away from most components), now I can adjust all the way up to 1420 RPM before seeing any problems.

This problem is obviously caused, in-whole or in-part, by EM interference. It's starting to look like shortening the cables as much as possible (maybe even shielding them) could fix the problem.
post #17969 of 24920
Quote:
Originally Posted by Leapo View Post

Small update: I just untied all the fan cables and let them hang freely (far away from most components), now I can adjust all the way up to 1420 RPM before seeing any problems.

This problem is obviously caused, in-whole or in-part, by EM interference. It's starting to look like shortening the cables as much as possible (maybe even shielding them) could fix the problem.

Good one! If its fixed by the shielding post your experience so others may know how to fix something similar in the future! thumb.gif
+Rep for not giving up! wink.gif


Cheers

Ed

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post #17970 of 24920
Thread Starter 
@rocsage you have no validation you still a member I just need a validation. wink.gif
@El_Capitan I have the 4mdkw can you provide me the second validation please biggrin.gif
@Kalavere can you get me the GPU validation instead of the valid.canardpc thank you

thank you all for sign up the owners form and get it done.
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