Will PCI-E x1 card fit in a PCI-e x16 slot?

Hey Guys and Gals, I think i already know the answer to my question, but i just wanna double check with you guys before i go and swap stuff around and blow something up =P..

Heres the story, I have recently just brought a new Auzentech X-Fi Forte sound card for my system (Worst Mistake EVER).. And i am getting this terrible crackling/buzzing interference noise that i cannot get rid of.. After many days of trying to find a fix for this stupid thing by using sticky-tape to rid it of EMF fields that it apparently makes and numerous driver re-installs.. I have now finally found the reason of it causing problems .. Ive found it is becoming too hot from my HD6990 Graphics card, which is mounted in the PCI-e Slot below..

Long story short, the way i am going to get around this issue is to move my sound card to another slot (Away from the graphics card).. and my motherboard only has one accessible PCI-E x1 slot as the others are covered by the graphics card..

My question is can i plug my crappy sound card into the other PCI-E x16 slot i have on my motherboard as i don't run crossfire and the card seams to fit into it.. If i plug it into the x16 slot will i firstly blow it up?? .. I've heard its okay but i wanna make sure first haha... and secondly if it does work, Will doing this slow down my graphics card in anyway? ..

If this doesnt work i guess im just going to have to mount some fans in weird sports to keep it cool...

But yeah bottom line: Would a PCI-E x1 Sound Card fit and work without slowing anything down in a PCI-E x16 Graphics Slot...

Thanks guys!!!