Lenovo Windows 8 Desktop Black Screen?

About 2 weeks ago, I turned my Lenovo Ideacentre desktop off by the power button and when i turned it back on, the screen was completely black. There's no cursor and I have tried to do safemode with the shift and the f8 but nothing is working. I don't know much about the computer type but i do know that it is not a laptop therefore i can't remove the battery. Nothing on google has been able to help me and it is getting a little frustrating. Someone please help if you can and sorry i don't have much info to go off of. All i know is that the fans turn on/work & the desktop makes sounds in the background due to my IMVU that is still running so the computer works it's just the screen.