He's right. Is this a PCI express graphics card? Is there a seperate power connector for the Graphics card you're not plugging in?
Describe the noise it makes "Like it was dying". Is it a beeping noise? grinding? Clicking?
How far does it get before dying? Windows load screen? Can you get into the bios? Does ANYTHING appear on screen? Does it beep at you while starting up?
Again what Graphics Card do you have?
Sadly this could have nothing to do with your Graphics Card. And honestly I doubt the lights have anything to do with this.
Try reseating your memory. Try moving the memory to a different slot. if you have more than one stick, take em out and try em one at a time. If your PC has an onboard graphics card, remove your current one and plug the monitor into that. Reset your bios by unplugging your PC, and removing the battery on the motherboard (it looks like a big watch battery) for about 1 minute, then putting the battery back in and starting your PC.
If none of that fixes the issue, look into motherboard or processor issues.