Decreasing Gigabyte R9 390's temperature by adjusting fans

[Radoslav Vartanyanov]

I wanna ask you if its okay to adjust fans of my GPU cause its getting like 84c. but i notice that fans aren't at full speed.
What changes if I increase their speed manually i mean like if the card reach certain temp - they increase speed.
Is it BAD for fans to be at full speed ? (Only when gaming) or I can feel free to increase their speed ?

 

[middlemarkal]

you can run fans faster no problem, except noise

 

[nb7760]

It's strange that the fans aren't at full speed when your gpu temp is at 84c. It's perfectly okay to manually speed up the fans to 100%. PC fans are all designed to run at full speed for very long periods of time. It's not harmful to have them at full speed.

 

[vulcangrey]

The R9 390 is basically the same as the R9 290. By default the R9 290/390 are designed to run up to 94C and then the fan speed will increase to maintain 94C. The fans are limited to 47% by the default driver (for noise reasons), and after the GPU reaches 94C and 47% fan speed, then the GPU clock rate will lower to maintain that 94C temperature. I set my fans to go up to 100% and the temperature to 94C, so my two R9 290's in crossfire always run at 94C and 100% clock speed (when needed). They never slow down during a very taxing game, and the fan speed just goes to what ever speed it needs to maintain 94C.

 

[Radoslav Vartanyanov]

OMG Guys... i don't know what was wrong with the auto settings but now it can't even pass 61c. only using 80% fan speed .. WOW ....cause i make it like if it goes 60+ it turns to 80% .. i think probably i can even use 70% a it still wont pass 65c.