I bought a new Laptop – ASUS N750JK (see https://www.asus.com/de/Notebooks/N750JK/specifications/) with a Intel HD4600 and a Nvidia GTX 850M graphics card inside. I also bought a 4k Monitor (see http://www.philips.de/c-p/288P6LJEB_00/brilliance-4k-ultra-hd-lcd-monitor) which works on 4k@60hz. My problem is that I can't find a way to switch the graphic card to use from Intel to the Nvidia (the Intel only works with max 4k@30hz). My OS is Windows 8.1 Pro x64.
I already tried the following:
- BIOS settings: I can't deactivate the Intel card via BIOS
- BIOS update: Done, didn't change anything, no new settings available
- Deactivate Intel card via Windows 8 Device Manager: This causes a strange behaviour, and Nvidia Control also won't work after this step
- Restart: Didn't help
- Removed the newest Windows drivers, instead used the latest drivers from ASUS website. Also didn't work!
Can anyone help??? My GTX 850M supports 4k@60hz, doesn't it???
Best Answer
GTX 850M Supports resolution to up to 4K, but according to: http://www.gpuzoo.com/GPU-NVIDIA/GeForce_GTX_850M.html it supports only HDMI 1.4 and according to wikipedia HDMI 1.4 supports 4K @ 24 Hz/25 Hz/30 Hz.
So that might be your problem if you connect your 4K monitor via Display port it should work fine.