PC won't boot after installing new PSU

[Undertattood]

http://www.buy.com/prod/corsai...loc/101/205466485.html
i bought that about a week ago. after installing it today, correctly, i went to boot and got nothing. the only signs of life are a half-a-second bleep on the front led and the lights on my network card. i double checked all connections, twice. the psu comes with a main 20+4pin connector, which i seperated to b compatable with the 20pin connector on my mobo(make sense?). I re-installed my old psu, and everything works fine, thank god. what could b wrong? my specs

IBM/Lenovo Thinkcentre 8185
P4 i865chipset
intel *** mobo, not sure
2gb ballistix ram
80g hd
3.5 floppy
DVD/CD drive

 

[PurdueRy]

How can we know unless we know what PC you have?

 

[Undertattood]

it's an IBM Thinkcentre 8185/w14

 

[RallyMaster]

Got any pics of the motherboard? Chances are, the mobo is just a standard microATX and the PSU will work.

 

[Undertattood]

so i attempted to hook up my new psu (see link above), but got nothing. the only sign of life is the bulbs on my network card (the green and orange ones in the back). so wtf? i double checked all my connections and still nothing.

how do i post pics?

 

[Undertattood]

bumpity bump bump! come on guys! i have a new (to me), shiny 850xt I wanna try out, but can't unless I get this psu up and running. all pins are the same for the old and new psu. I noticed this time around that my power-on LED flashes once every five seconds, but I still can't get the comp to post. HHHEEEEELLLLPPPPP!!!!!!!!!!! seriously, i need it.

 

[Undertattood]

bump

 

[RallyMaster]

Upload your images to imageshack.us and then post the link to the image