Goddamn PC Problems.

So today I was cleaning my room a bit... Unplugged my PC and everything just to get the mess and dust around the very horrifying looking dust everywhere in between. Now, when I plugged my PC back together just the way it was before, then for some reason, my computer starts up successfully and efficiently without any problems, but the monitor comes as "No Signal." Clearly meaning and stating that it won't display. I've checked for anything that may have been out of space, including; Cables, unplugged wires, and anything else that I may have left out.

My monitor connects to my PC via VGA Cable. The VGA is in any sort of way, not corrupted, or screwed over. My graphic card, motherboard, and ram have been replaced with BRAND NEW ones. I bought a two 3GB Ram Sticks or what ever you would like to call it, a new Nvidia GeForce GTX 450 Graphics' Card, and a brand new motherboard. I payed a lot for this, and it still doesn't work. I've done literally EVERYTHING. Any one have some solutions to this problem? Don't tell me to use Google. Because I already did.So saying this again, anyone good at computers, and have a way for this solution?

Fluck Technology that does not work.
Also I already tried different monitors.

EDIT: Tried another VGA Cable said by Jab, but still didn't work/

Try another monitor and/or VGA cabl, you never know.

Happends to my dads comp
turn it on and leave it for agers.

pretty sure its a drivers problem

Maybe the monitor is some kind of damaged.
Use warranty if you still have it.

@
GTX 450?
Wutwut?
No such thing.
It's GTS 450.
Did you plug in the 12v power rails for the graphics card?
I was cleaning my computer today but I forgot to put the power back in the graphics card and my monitor won't show anything.
Wrong section too.
Hardware & Software Support - MPGH - MultiPlayer Game Hacking

You sure you put the RAM in the correct postion. Misplaced RAM will cause the computer to boot but it wont POST and your monitor will display no signal.

Originally Posted by Doc

You sure you put the RAM in the correct postion. Misplaced RAM will cause the computer to boot but it wont POST and your monitor will display no signal.

Maybe he bought some motherboard with tri channel memory and he used double channel.

Originally Posted by Roger S

Maybe he bought some motherboard with tri channel memory and he used double channel.

Maybe, but I remember my friends computer did the exact same thing, and when we realized we positioned the RAM in the wrong channels we both facepalmed.