LG TV (4K, 43 Inch) as Monitor

Hi, I am facing an issue with my PC. I am trying to use my LG 43 inch 4K TV (UK6360PTE) as pc monitor but failed to do so. TV has hdmi port but my pc has vga and no hdmi. I have used a converter but didn't worked, no display at all. Talked with lg customer care they told - pc motherboard must be a hdmi motherboard otherwise it will not work even no converter will work. My pc technician told me hdmi graphics card will work. Now the problem is should I convert the non hdmi motherboard to a hdmi motherboard or hdmi graphics card will solve the problem for 4k display ?

Widows 10 pro
version 20H2
Intel(R) Pentium(R) CPU G4400 @ 3.30GHz 3.30 GHz
64-bit operating system, x64-based processor
Installed RAM 4.00 GB (3.87 GB usable)

veeg said:

Hello

Well if the tech said it would work the graphics card would be cheaper than a new mobo.. What type of mobo do you have?

Click to expand...

Sorry for the late response. This my pc motherboard (pic attached). I want to set my LG 43inch 4k tv (UK6360PTE) as a 4k monitor to watch you tube and other streaming videos in 4k resolution. Also to watch 4k movies via external hard drive/pen drive.

Thanks for your suggestion.