my computer will not turn on helppppppppppp

well im pretty sure this goes here.

To start off my computer stopped working a couple months ago; it just
turned off and i heard something fry in the computer. At first i
thought my power supply burned out but i tested it on another computer
it worked and i tested my cd drive, graphic card etc. Then i tested my
motherboard and it didnt work so i figure i blew that. I went an
bought myself an MSI motherboard that supports basically everything
that my old mobo could do. I went home and i began working on it. I
set up everything (cpu,cooling fan, ram, graphic card etc.) Then i set
up all the wires into it from the power and reset button and the power
supply cords. I hooked up cd drive/harddrive as well. Still not having
hooked up my monitor and computer accessories
(mouse,keyboard,headphones etc), I plug in the power cord for the
power supply. To my delight it turns on and everything is running. I
turn it off and set it up on my computer desk now hooking up my
keyboard, mouse monitor and what not. Then when i tried to turn it on
it fails to turn on. I try to keep turning it on but it doesnt work. I
dont know whats wrong....

someone please help ):

<contradikt RemoveThis @gmail.com> wrote in message
news:1182699185.009373.46110@a26g2000pre.googlegroups.com...
> well im pretty sure this goes here.
>
> To start off my computer stopped working a couple months ago; it just
> turned off and i heard something fry in the computer. At first i
> thought my power supply burned out but i tested it on another computer
> it worked and i tested my cd drive, graphic card etc. Then i tested my
> motherboard and it didnt work so i figure i blew that. I went an
> bought myself an MSI motherboard that supports basically everything
> that my old mobo could do. I went home and i began working on it. I
> set up everything (cpu,cooling fan, ram, graphic card etc.) Then i set
> up all the wires into it from the power and reset button and the power
> supply cords. I hooked up cd drive/harddrive as well. Still not having
> hooked up my monitor and computer accessories
> (mouse,keyboard,headphones etc), I plug in the power cord for the
> power supply. To my delight it turns on and everything is running. I
> turn it off and set it up on my computer desk now hooking up my
> keyboard, mouse monitor and what not. Then when i tried to turn it on
> it fails to turn on. I try to keep turning it on but it doesnt work. I
> dont know whats wrong....
>
> someone please help ):
>

taking a wild guess I would say it has something to do with your
mouse,keyboard,monitor and what not.............but I could be
wrong...........try replacing these starting with the cheapest part.

when you do get it sorted you may have to do an OS repair or even a
reinstall as I did when I changed my MOBO.