I see some posts guys telling, mine was at 99% and so on.Where do I check this?

I use EVGA precision since I have an EVGA 500 series card.http://www.evga.com/precision/

Here is another one: GPU-Z, it reads most cards.http://www.techpowerup.com/downloads/SysInfo/GPU-Z/

Edited March 2, 201214 yr by Kabronicus