Hi ,
I recently took hardware off of my mb To blow the fust off that had accumilated overtime never cleaned it because ide always forget. Well Just before i did this it was all working as usual, then i decided to clean it which with no doubt was a terrible idea. After putting all my gear back on It will power up fine, But there is no response from the monitor keyboard or mouse, so therefore i cant see anything. not even see if its reaching the bios. There are no beeps.

I have tried running with out hardware just cpu
i have tried both onboard and Apadater graphics.
ive tried pretty much everything from looking at other threads on here.(i think)

Can somebody help me please?

its got pretty old parts But as i stated above It was working before hand.

AS for Specs I cant remember the cpu But is an Amd Phenom x3 Am2
Board is a Gigabyte GA-MA74GM-S2H

first try to reset BIOS and if that doesn't work, make sure all power cables a making good connection