I off my computer and after 10 minutes my sister said that she want to use it, okay i'll just on back my comp and guess what? Nothing happens to my monitor. So after that i fiddled a bit and i found out that when i plug in the wire that connects the monitor to the dedicated graphic card slot to the motherboard's slot, it worked! but then my computer wont recognize my GTX650 and I've tried going to the NVIDIA control panel and they wont start because there's no NVIDIA graphic card. Same thing when i goes to device manager, they will only display my intel hd graphic 2000. Also my graphic cards fan is running when i am typing this. Any help is deeply appreciated thanks!