good night, lately when I'm playing BF4 appears the following error message

this has already some time and therefore does not appear with the updated drive.
to help see what is going on I used gpu-z and I ask your help in trying to see if they discover something wrong 
hxxp://prntscr.com/58hqni
 
I use evga precision just to turn on the fan manually to 74%, do not oc and gives the error when I notice that the fans are moving at 30% ...
I appreciate your help because I realize even just to check any abnormality
 
 
intel core i54670k
msi z87-g45 gaming
evga gtx660 sc 3gb
2x 4gb 800mhz g.skill
corsair gs 800 psu
windows 7

Sajin
This is most likely caused by an unstable video card or a corrupted precision x install.

What can I do if the unstable video card?

Sajin
Downclock the card -105 from default clocks on both the core and memory to verify the card is unstable. If the error goes away with the card downclocked the card is unstable.

already uninstalled it and went back to install precision x, all the drives graphic card and after 1 hour gave the error 2 times. also did downclock. seems to me that much graphical heats and turns off for precaution, it is possible to happen when it comes to 80ºC? I'm saying this but do not know anything about this, I'm just putting an idea ...
plus some solution for this problem?
I apologize for the bad english

I play when I turn on the precision x and put the fans in manual mode to 74%. I have noticed is that after a while to be playing (sometimes happens last two minutes to 1 hour, is random) they go alone to 30% and is when the so directx error.
already uninstalled and come again to install precisionx and continues. to make sure that it was not this program installed msi afterburner but still appears the error.
will be that is the failed fan or is even the graphics card that is giving the latest?
thank helps