Yes running IBT or furmark solo, no problems. I had crash when running togheter, but anyway its not only that, all this was coming from a nvidia driver crash on idle, + lose singnal of my monitor, all this was on idle on chrome exactly, so from this I started to test to try find why I lose signal of my video card. Just after 3-4 days of installing the new RTX 2060, and I remember few years ago, also when I intalled a new video card, (GTX 970) had exactly same problem, monitor go on blank or green, pc freeze, sound freeze idle or load, so I replace that 970 card for a new one, and with the new one 0 problems.
So I want to avoid those problems, and thats why I returt this new card, and I will buy a new one.