HELP ME AND MY COMPUTER!

I recently went to install a Geforce 9800 GTX+ video card. When it didnt fit i put my old video card back in.
Now: I still have the software to run the videocard in (the old one, the new one is not installed) but it doesnt register the videocard in dxdiag.
Sound doesnt work, video card doesnt register, mic doesnt work, anddd…
My computer bluescreens, if I used ~ Rogue Software BANNED ~ (full version, I was desperate) to try and fix it, it doesnt help, but when i restart i get a new error
Inital error:
c0000218,
Unknown Hard Error
second error after ~ Rogue Software BANNED ~:
STOP 0x0000006F (0x00000130, 0x000000, 0x000000, 0x000000)
pictures:
http://img508.imageshack.us/img508/2497/screwedup1yr4.png
http://img393.imageshack.us/img393/4981/screwedup2gj2.png
http://img366.imageshack.us/img366/1438/screwedup3ql9.png
Thank you,
Answer #1
Moving -Headucatiion
#3.3 Topics must be submitted to the relevant forums. Please read the forum descriptions before posting.
Answer #2
Sorry, i thought I was posting in helpdesk.
Either way, does anyone have a fix?
Answer #3
Do you have a sound card plugged in one of the PCI slots?
Answer #4
Everything was working before I removed the video card, so my instinct is yes.
Answer #5
I have the same problem with the same cards and the same windows I used before…….It turns out to be IRQ conflict…
Try removing any cards apart from the graphics card,,,Boot and see what happens…
Answer #6
And then..?