1 gpu fan not spinning

Josiah c-e · Apr 14, 2016

so the other day one of my gpus fans stopped spinning, the card is only just over a year old and before the other day it was working fine. if i put the speed up to about %40 the second fan kicks in, however i would like to know why this is happening. I have cleaned the fans and my gpu temps are fine.

ahnilated · Apr 14, 2016

Some of the new GPU's don't turn on the fans unless they are needed or the temperature goes above a certain level.

JackNaylorPE · Apr 14, 2016

Question would be easier to address if you listed the model of the GFC card.

Asus for example started (9xx series) having it's fans respond to temperature control whereby if the temps are below 65C or so, the fans don't spin. MSI started this trend back in 2008, and took it a bit further with this time by controlling the two fans independently. The Hybrid Frozr tech can result in:

0 fans operating
1 fan operating
2 fans operating

depending on temp input from the varioujs sensors. Run Furmark stress test to provide enough load fro you to determine if you have a dead fan

http://www.bit-tech.net/hardware/graphics/2014/09/19/nvidia-geforce-gtx-970-review/4

Like the ASUS card, the GTX 970 Gaming 4G features a semi-passive mode, which it calls Zero Frozr. It's something MSI first brought to the market in 2008 (it's keen to clarify that it hasn't copied the ASUS Strix cards here). The temperature cut-off points are similar to the ASUS card – between 60 and 65°C, the fans will spin up; once the GPU drops to about 50°C, they're no longer needed. This carries benefits for noise production, efficiency and fan lifespan.

Another feature is called Hybrid Frozr, and this refers to the ability to control both fans independently. Enabling this functionality is a six-pin fan header on the PCB. In automatic mode, one fan is controlled by the GPU temperature while the other is controlled by temeprature measurement ICs dotted around the PCB. MSI claims it can result in a 1.9dB(A) noise reduction, and also offers users the ability to control the two fans independently using its Gaming App.

Josiah c-e · Apr 20, 2016

it is a sapphire r9 270x

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