Problems with mobo (i think)

[Mosqwik]

So i have a ASUS P5VDC-X mobo which worked great. Then i decided to clean the parts, removing dust and such so i removed all the parts and when i put them back the computer wont start. When i try to turn it on it gets power (the CPU and PSU fans start spinning) but then instantly turns off (fans stop spinning).

I tried plugging in the PSU in another computer and it works fine, as does the CPU so those are fine. The RAMs are ok aswell so i came to the conclusion that the mobo is at fault. I can not figure out what it is. The only clue i have is that fter i had cleaned it and put back all th parts i had a Jumper left over but after hours of trying different stuff it doesnt work so i figured it was nothing important.

Does anyone have an idea of what may be wrong or is the mobo damaged because of static electricity? (Note that i didnt use any protection against the latter because i havent had to before).

Thanks in advance.

[mark]

It sounds like the motherboard is dead.  It could have been like you suggested, a static discharge, something could have shorted when you were installing/un-installing parts or connecting the powersupply. 

You best hope is to see if the motherboard (or whole computer) is still under warranty, then simply RMA it.  If not, it isn't the type of thing you can repair, you will probably have to buy another.