Monitors Need Urgent Help : No display on monitor

I was trying to remove top cover and front cover for installing fans in CM690. I removed the top cover but while I was removing the front my hand got cut. So I stopped the whole thing and made it back the way it was.

Now when I restart my cpu, there's no display on lcd. No signal.
I have checked all the connections, everything seems fine.

Please help..

i7-920
Asus Rampage 2 Extreme
Corsair TR3X3G-1333C9 3GB Kit
Thermalright Ultra-120 eXtreme
Scythe S-Flex 120mm
Palit GTX 260 sonic
500Gb Seagate 7200.12 HDD
CoolerMaster CM690
Coolermaster M600
Benq T2200
 
When everything was fine... GPU fan used to noise when I switched on the computer. But now the fan keeps making noise seems as it is running at full speed.

I switched my ram from one channel to another still no change..

I will try to rub them with eraser..
 
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