Hello, Ive experienced some problems with my PC lately. When I play games for example Battlefield 3 my video card uses only 30-40% of it's power and that causes lag and it wasn't like this. I tried running FurMark to see if it's going to be different and it is. My GPU is using all of it's power 99%. So why when I play games it doesn't use it's power. On some games it does and on some games it doesn't I have no idea why. I think the problem is in my PSU but I am not sure and that's why I am here to ask you guys, to ask the experts. My PSU is a Chinese 350W. Thanks.
What graphics card are you running? It would be nice to know what hardware you're running besides the power supply (ie. CPU, GPU, etc.)