Question Windows won't allow 4k HDR @100Hz ?

avizacty

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Oct 8, 2017
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I recently bought a new 4k TV, but after some experimenting, Windows will not allow me to use it to its full potential. The TV is fitted with a 4k HDR10 display @100Hz.

The furthest settings I've been able to use via my computer, on the TV is 4k @60HZ with no HDR. The only way I'm able to turn on HDR is if I put the refresh rate down to 30Hz, but whenever it's any higher, the HDR button just instantly flashes off.
4k HDR at 30Hz is not what I'm going for so I am looking for solutions:)

I'm wondering if theres anything wrong on my computer end, because my Apple TV 4k can do 4k HDR with the same HDMI cable.

My computer specs are:
GTX 1070
i5 7600k @3,8Ghz
Asus Prime Z270-P Mobo
Corsair RM750X Power Supply

The TV specifications are in this link
https://www.sony.co.uk/electronics/support/televisions-projectors-lcd-tvs-android-/kd-55x8505c/specifications

Help is appreciated thank you:)
 

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