graphics card messes up wireless card

ok so my graphics cards fan went out awhile ago so i bought a new fan one of those big ones that take up an extra pci slots
it works fine but it's electromagnetic field generated by the fan makes my wireless PCI card shut off and makes it very difficult to do anything internet related while i have my graphics card in.
any suggestions on how i can shield my wireless card from electromagnetic interference?

you can try altering your spread spectrum in your bios to help lower your emi to see if that helps any, before you go installing shit on your comp