Just bought a kg240 as cheap second monitor. No regrets so far. 144hz on dp. No tearing on csgo at 400fps.

Using nvidia. Not and hence not using freesync. As long and can maintain stable fps at 200+ and doest drop below 144fps, I wont see any tearing at all.

For the price of 880 I think its one of the cheapest option for 144hz 1ms screen around. Definately a value buy if anyone doesnt mind an acer screen.

Only those cheap risky china and korean screens are priced lower.

Any chance of getting access to the service menu?

I tried 5 5 4 4 3 2 and 5 5 4 4 3 2 5 but im unable to access the service menu.

Kg240. Dont have an amd card to test. But im assuming its 40-144hz on freesync range.