EVGA 970 Automatic Fan Speed Problem

zrandall111

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Jul 15, 2015
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My GTX 970 is acting weird

the card is sposed to speed up the fans as temps go up however the temp gets up to 71c and the fans still dont spin. nothing wrong with the fans because when i force them to spin via msi afterburner the fans spin fine someone help
 
Solution
It would tell me you have a Faulty PWM chip on the graphics card.

As well as a thermal diode that keeps track of how hot the Gpu is, embedded into and part of the gpu die.
You have what we call fan curve settings stored in the bios of the graphics card.
Once the diode signals to the bios what the temps are of the Gpu it sends a signal to the Pwm chip.
The pwm chip is a digital equivalent of a variable resistor in a sense.

It controls the amount of voltage that is sent to the fans on the card, as it gets hotter the pwm chip lets more electrical current to flow to the fans on your graphics card, and the rotation speed or Rpm of the fans increase.

If the pwm chip is damaged or not working correctly it is the reason as to why in some cases the fans do not speed up in rpm when the temps of the gpu begin to rise.

The card should be sent back under it`s Rma procedure if the case.
 



I tested the fans via the EVGA presision x and found that the fans do start up when temps reach 65c however I'm wondering why the temps go up so fast. If no one has a answer then I'll just lower the fan kick in temp
 
I guess cause the fans don't start up until 65c ?? the card is all ready hot before the fans have a chance to start cooling ??

like I said above ''ya I don't really get these fan profiles on all these 900 cards like with the don't spin up until like 65c ?? ''

and you see why water blocks were hard to find as were the hybrid cadrs at first and at forums beloved patriot at evga guys get these air cooled cards and all they talk about is adding water or ln2 ?? all but the 970 [??] hmmmm....


'''answer then I'll just lower the fan kick in temp'' that sounds like your best bet to start and quite a few find this to work out maybe mod the case air flow ?/ run with the side cover open or off ??

if you registered your card with evga as you should put a thread on there forum to see whats said from there gurus ?

http://forums.evga.com/EVGA-GeForce-900TITAN-X-Series-f99.aspx




and remember

Furthermore, as we mentioned in our GTX 980 review, GTX 970 has been a pure virtual (no reference card) launch, which means all of NVIDIA’s partners are launching their custom cards right out of the gate. A lot of these have been recycled or otherwise only slightly modified GTX 700/600 series designs, owing to the fact that GM204’s memory bus has been held at 256-bits and its power requirements are so low.


any way what about that evga rep here at toms ?? nothing from him on this ??

 


I figured out the problem, my gpu clock was constantly running at 1189. This was causing my gpu to heat up to 65c almost immediately after startup. The core clock was so high because I had the power settings in nvidia control panel set to maximum performance. So I just lowered it to adaptive and now the core clock runs at 139 until I play a game

 
Solution