[SOLVED] Video Card Fans running at different RPM

[bigtalon]

Was wondering if this is a sign that one of my fans on my GPU is going on...
Fan 1: 1733 RPM
Fan 2: 1097 RPM
Fan 3: 1733 RPM

Fan 1 and Fan 3 are staying at the same or almost exact same RPM speeds. Fan 2 however is staying at 1097 RPM. Is this normal ?

- No Noises or any indications of a fan going out -

If it helps I'm using an Sapphire Nitro R9 390 8gb

 

[Aeacus]

Some triple fan GPUs are designed in a such way where middle fan is either smaller or spins at lower speeds.
Your GPU has a feature called: "Intelligent Fan Control II" and per Sapphire, it does the following: "Intelligent fan control allows one or more fans to be stopped for lower noise when the card is under light load and automaticaly restarted when the card temperature rises."

With that feature, when your GPU isn't under high temps, one or more fans either stop or spin at slower speeds. In other words, there's nothing to worry about.

E.g i have MSI Gaming X series GPU and my 2x GPU fans doesn't spin at all when GPU temp is lower than 60°C. When 60°C is reached, my GPU fans start spinning. This feature is called Zero Frozr.

 

[bigtalon]

Some triple fan GPUs are designed in a such way where middle fan is either smaller or spins at lower speeds.
Your GPU has a feature called: "Intelligent Fan Control II" and per Sapphire, it does the following: "Intelligent fan control allows one or more fans to be stopped for lower noise when the card is under light load and automaticaly restarted when the card temperature rises."

With that feature, when your GPU isn't under high temps, one or more fans either stop or spin at slower speeds. In other words, there's nothing to worry about.

E.g i have MSI Gaming X series GPU and my 2x GPU fans doesn't spin at all when GPU temp is lower than 60°C. When 60°C is reached, my GPU fans start spinning. This feature is called Zero Frozr.

At 71C the middle fan was at 1097 RPM, it's never went up or down, at idle it runs at 1097 RPM at full load it runs at 1097 RPM just find it very strange haha.

 

[Aeacus]

Sapphire isn't well known brand in the GPU market and why they limit the middle fan to fixed RPM, that i don't know. I guess they decided this option to be the best. Then again, variable RPM fan costs a bit more than fixed RPM fan and that move could've been to cut costs.