Have you got both motherboard power connectors connected? the 24pin and the 8 pin?
I'm confused - when you wrote 'It works!!!' what did you mean?
Did it work briefly, did the fans spin, did it beep...?
Sorry, i'm still a bit confused.
Are you saying that when the case fans were not connected the system worked - i.e. posted and you were able to get into the BIOS?
And now that the fans are reconnected you can't get a display but it sounds like the sytem has posted?
I had exactly the same problem 3 months ago, when re-assembling my rig after RMAing my mobo. Spent hours stressing over it, then it turn's out I've forgotten to connect the 8-pin to the mobo
What GPU have you got?
Yes, and could you confirm if you have tried the other monitor connector (other DVI output on the gfx card) on the gfx card?
Analogue input is for the blue (VGA cable only) the white DVI cable is sending a digital input - you need to change the input channel on the monitor to Digital!
Has it turned on again yet? I wish you luck!
Cycle through all the input channels...still nothing?
Have you tried disconnecting all non essential hardware so you're just running cpu, 1 stick of memory, gfx?
Also, was the monitor part of the new build and do you have another you could try or at least a different cable?
Not sure what power connectors your gfx card will have, but do you have it connected?
Eiether pci-e 6 or molex
I forgot to ask - do you get the post beep?
And this:
:/
Are you running a stripped down rig now?
Not good, it's not a monitor/cable issue then.
Did you say it shut down just unexpectedly earlier? Perhaps your block is not seated properly, the CPU is reaching very high temps and so your mobo is refusing to POST...