One card hashing lower - DUAL GTX 1060- O6GB

[r3lentleSs]

Windows 10 latest build
Colorful H81A- BTC v20
4 GB RAM
NVIDIA 417.01

I have one GPU (Always GPU3) hashing at a lower hashrate, other cards run @ 24 MH, this one @ a 21.3MH
It ran normal for a couple days then it droppped, and now it seems it doesn't take the OC anymore …

With Phoenixminer i'm getting 21.3 MH on all the cards STOCK! So i have one card that keeps running @ stock speed....

I have tried, swapping GPu's  and PCIe risers around, re installing drivers, and re installing windows ..

So the only thing i can think of is a MOBO faulty slot. As its Always GPU3 thats hashing lower ….

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[r3lentleSs]

EDIT : FIXED

[fanatic26_]

You should post about what you did to fix it, you never know who might stumble upon the post and need the help.