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GPU stops working on x16 PCIe, but works on x8 PCIe?

yapito
Level 7
Hello everybody,

I have 780 ti and recently on high load this card stops working, and my screen goes black, and also at the same time fans spin up to 100%.

I moved the card from the x16 PCIe slot to a x8 slot just to see if this behavior repeats, but on the x8 slot the card works fine.

Would anybody know whats the reason for this really odd behavior.

This behavior is a recent thing and it has never been a problem before, this most certainly has to do with the power management of the GPU or the VRM of the GPU.

Thanks in advance for any helpful information!
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sectionate
Level 12
computer specs?
Crosshair IV 1090T 4093.7 - Crosshair V FX - 8350 Batch # 1243PGT 4.422MHz - 4816.08 MHz 1.5v - GSKILL F3-14900CL9D-8GBSR(x2)1087.6 11-12-10 1.5volts - ViewSonic VX2439wm - Acer GD235HZ - SyncMaster P2350 - PowerColor Red Devil RX 480 8GBD5-3DH/OC - Current Mode: 5760 x 1080 - (retired) ASUS GTX660DC2O2GD5 - Nvidia 3D Vision Wired - HAF 932 - Corsair HX850 - Corsair H100i - latest quakelive.com - Day thirteen 60fps - as always I'm powered by Futurelooks.com