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GPU Fan on full speed, sensors says 0 rpm

Hey guys,

 

Quick story

 

I just builded a brand new system for around 600 €, all the parts are brandnew except the GPU.

It´s a 1070 Zotac mini from ebay for like 150 € but the seller told me one of the fan (the left one) spins at full speed, I thought for myself this would be a Software problem or something that i could easily solve with MSI Afterburner.
Oh boy how could i be wrong. It´s like a jetengine.

 

On gpu-z and Afterburner the RPM sensors tell me 0 rpm but the fan still spins at full speed.
Even manually putting a fan profil in msi, it don't change anything.

 

I searched everywhere and didn't find anything that help.

 

Things I've done:
-DDU and fresh install of gpu drivers

-fresh install of windows + update

-renew the themal paste

-cleaned the gpu (was so filthy that the pcb where something was written was black)

 

Things I will do (planned)
-using a vga to 4pin pwm to see if the sensor in the fans is the problem

-perhabs using a different PSU

 

Toughts

-Bios on the gpu?
-Bios on motherboard (there are two new versions, but the installed is from 2‎019/11/27)

-if there is the sensors in the fan problem I will renew them

 

 

System:

Spoiler

-AMD Ryzen 5 2600X
-Gigabyte B450M DS3H Micro ATX (bios version F50)

-Zotac GeForce GTX 1070 8 GB MINI Video Card
-Crucial Ballistix 16 GB (2 x 8 GB) DDR4-3200 CL16
-Western Digital Caviar Blue 1 TB 3.5" 7200RPM
-Crucial P2 500 GB M.2-2280 NVME Solid State Drive
-Corsair CX (2017) 450 W 80+ Bronze Certified ATX Power Supply
-Edimax Netzwerkkarte EW-7612PIn WLan 300Mbit/s PCIe x1

-Win 10 pro 64


Thanks in advance.
Sorry for the bad english.

 

Geetz Tiago

 

GPU-Z

Spoiler

graphics card.gif1145237305_furmarktest(2).PNG

 

 

 

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1 minute ago, JoanDG said:

If 1 of the 2 fans spins at 100%, i think it is more likely that the PWM cable on that fan is damaged, since i thing that both fans are connected to the same port by a splitter. It also may be that the fan pcb is a bit fried, it sound like a fan replacement is the solution..

https://www.ebay.com/itm/85mm-Zotac-GTX1070-MINI-Dual-Fan-Replacement-42mm-4Pin-GFY09010E12SPA-0-5A-R219-/183183401338

This is what I thought, the amazon package will be here tomorrow.

Thanks 

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