Today I built a system from scratch. Over several hours, I got everything seated, screwed in, plugged in, and cabled. I connect the monitor by DVI, turn it on... and nothing happens. Fans spin up, LEDs turn on, I can hear the hard drive doing its thing, but the monitor obstinately keeps its power light orange. I checked the monitor by VGA to my laptop - it is a working monitor. I cabled the VGA to a VGA-to-DVI adaptor and plugged that into the card - still no signal.
So, we know it's not the monitor, and it's not the connector.
How can I figure out what actually is causing the problem, and then fix it?
Video card is a GIGABYTE GV-R577SO-1GD Radeon HD 5770 1GB.