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Signal lost when GPU under load

Signal lost when GPU under load

Postby Trupik » Wed Aug 14, 2019 6:27 pm

Hi,
few veeks ago i did upgrade in my PC and I changed my old nVidia GTX660 to nVidia GTX1660Ti. After this update - when i'm watching TV in window and (in same time) working with other app whitch using GPU, TV signal get worst, TV start lagging sound & make artefacts in picture. When GPU is under heavy load (like GPU stress test), TV lost signal completely. When GPU lost load, signal is back.

New GPU: EVGA GeForce GTX 1660 Ti SC ULTRA GAMING
CPU: Intel i7-4790
MB: Asus Maximus Gene 7
OS: Win 7 Ultimate x64
PSU: 650W Seasonic 80+ platinum

All drivers are up to date, all Win updates installed

Some screenshots:
https://pasteboard.co/Irkc4oo.png
https://pasteboard.co/IrkcvYD.png
https://pasteboard.co/IrkcNVv.png

Tested in more TV apps - same problem

Thanks for help.

T.
Trupik
 
Posts: 3
Joined: Tue Aug 13, 2019 1:07 am

Re: Signal lost when GPU under load

Postby steven » Thu Aug 15, 2019 5:09 pm

Hi

Is the tuner card near by the GPU card ? if yes please try another PCI-E slot then check again

Thanks

kind Regards

steven
steven
 
Posts: 1973
Joined: Fri Aug 06, 2010 3:23 pm

Re: Signal lost when GPU under load

Postby Trupik » Fri Aug 16, 2019 1:14 pm

Thanks for reply.
I have small MB and i have only three PCI-e slots:
Upper x16 - GPU card
middle x16/x8 - empty
lower x4 - TV tuner
Trupik
 
Posts: 3
Joined: Tue Aug 13, 2019 1:07 am

Re: Signal lost when GPU under load

Postby Trupik » Sat Aug 17, 2019 1:37 am

New info:
* TV tuner in middle PCIe - no change. :(
* some channels are working under GPU load without problem:
screenshot.68a.jpg

Window in left: Furmark - GPU under full load
Window in right-top: Schibo PVR - channel not affected
Window in right-bottom: WMC - channel lost signal afer GPU load (WMC message: No TV signal)

When GPU is'nt under load, booth channels have same signal strenght & quality
Trupik
 
Posts: 3
Joined: Tue Aug 13, 2019 1:07 am


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