Asus Strix GTX 1080 fans won't turn on

VatsalS · Oct 29, 2016

I just bought an Asus 8G GTX 1080 to set up in a new build (specs below) but the fans won't turn on even if the GPU is under load. The spins will spin for a couple of seconds when I turn the system on and not work anymore. To put the GPU under load I tried running the FurMark stress test and playing three movies at once.

I have tried using NZXT CAM, Corsair Link and the BIOS to monitor the GPU temp and fan speeds just to make sure that it isn't an issue with the software.

The GPU has two connectors on it: one 8-pin and one 6-pin. The PSU i bought didn't have an 8-pin connector that I could plug into the card so I used the Y-splitter that came with the GPU, which splits the 8-pin port into two 6-pin ports. Currently I have both 6-pin ports from the Y-splitter and the GPU 6-pin port connected to the PSU through 3 separate cables. I have also tried connecting only one of the Y-splitter's 6-pins but that doesn't work either.

Could this be an issue with the drivers, an issue with the power being supplied to the GPU or a faulty GPU?

SPECS
CPU Intel i5 6600k
CPU Cooler Corsair H100i v2
Motherboard Asus Z170A
RAM Corsair Dominator Platinum DDR4 3200 MHz
GPU Assu ROG Strix GTX 1080 8G
HDD Seagate Barracuda 1 TB
PSU EVGA 750w G2

Jasjar · Oct 29, 2016

What happens if you manually change the fan speeds in msi afterburner?

Xorecore1349 · Feb 15, 2017

VatsalS :

I just bought an Asus 8G GTX 1080 to set up in a new build (specs below) but the fans won't turn on even if the GPU is under load. The spins will spin for a couple of seconds when I turn the system on and not work anymore. To put the GPU under load I tried running the FurMark stress test and playing three movies at once.

I have tried using NZXT CAM, Corsair Link and the BIOS to monitor the GPU temp and fan speeds just to make sure that it isn't an issue with the software.

The GPU has two connectors on it: one 8-pin and one 6-pin. The PSU i bought didn't have an 8-pin connector that I could plug into the card so I used the Y-splitter that came with the GPU, which splits the 8-pin port into two 6-pin ports. Currently I have both 6-pin ports from the Y-splitter and the GPU 6-pin port connected to the PSU through 3 separate cables. I have also tried connecting only one of the Y-splitter's 6-pins but that doesn't work either.

Could this be an issue with the drivers, an issue with the power being supplied to the GPU or a faulty GPU?

SPECS
CPU Intel i5 6600k
CPU Cooler Corsair H100i v2
Motherboard Asus Z170A
RAM Corsair Dominator Platinum DDR4 3200 MHz
GPU Assu ROG Strix GTX 1080 8G
HDD Seagate Barracuda 1 TB
PSU EVGA 750w G2

I am having this same problem ATM. Did you find a solution?

The_Staplergun · Feb 15, 2017

External fans connected to the end of the card at the pins, or the 3 fans on the card.

If it's externally connected pins, by the two 4 pin PWM connectors at the end of the card, those only activate at 60c+ unless you force them to be on at all times, but they only turn on at 50% or higher when connected to those slots. If you want them to run otherwise, you have to connect them to the mobo. I just found this out on my own rig.

If it's the ones on the card those only activate at 40c without manually turning them on, or turning off "quiet mode"

Make sure you're powering the card correctly too. Look at my setup.
If you look closely you see a 6 pin cable that comes out, that has a loop with a second 6pin plug. Each one has a small 2 pin connector that comes off it, to supplement for 8 pin connections.

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