Hello. I own a GTX 650 ti boost and it gives me a problem: every time I try to use it, after some time the driver crashes, apparently, it does not start again and my monitor shows no signal, with the orange color on the power button. On the other hand, my GT 630 works normally. Tried Nvidia 391.01 and 388.16 or something and they have the same results. I tried my old monitr with both a vga-hdmi adaptor and a dvi-vga adaptor and nothing...even after the monitor change I still get the issue, though this time I could use the GPU longer, I even performed a small stress test. GPU-Z shows every parameter correctly. Maybe it's the video ports? Do you think it's worth sending it to repairs?