Problem with monitor...?
 

I'm writing this on behalf of my friend. So I don't have much info on his computer, only what she's told me.

Her monitor won't turn on. No, it turns on, but it stays on like a second and then shuts off, and then starts to flash orange light on the led. We've tried with different monitor, but no luck there. I don't know what I should look for, so any kind of help is much appreciated. :)

My first guess would be that the monitor isn't the problem. That's usually what monitors do when they aren't getting a signal that they can display properly, or no signal at all.

As Soluzar said. Try it with a different computer, or make sure it's connected properly.