Question My Asus 1070 turbo fan speed so high

Jan 10, 2021
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Hi
I have a 1070 turbo (asus). last week i want to placed a backplate on my gpu that have RGB strip (12v)
when i want to placed it, i saw a spark for mili secound on my board that rgb strip touch my board.
in attach image you can see where i saw spark.
my computer is run and gpu is ON. after that spark my gpu fan increase to 100% speed and never go down.
i change cable/ test on other motherboard / update bios/ update driver/install MSI afterburner program / but i cant fix it. now when i turn On my pc every thing is Good but my GPU fan work 100%.

My pc :
motherboard: asus tuf b450
ram 16 gskill 3000
cpu ryzen 7 2700x
gpu 1070 turbo asus

image of area that have spark with rgb strip:
gpu.png

https://ibb.co/0Q4zTq4
 
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