Toshiba P100 wont boot with broadcom wifi card (Think BIOS blocks it)

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Hi to all, I have ipc 10.5.6 working on my toshiba p100-103 pspa3e, and I wanted to get the wireless working, so I decided to buy a Broadcom 4311 mini PCI-E wifi card and change it for the original one that is a intel 3945abg, but when I put the new wifi card the pc wont even boot to bios the screen just stays black, also tried to boot to windows or osx and after place the card on the slot but it does not work either and causes to lose the trackpad movement, I have a modded bios for sound to work, but I have tried restoring the factory BIOS and its still a no go Does anyone has the solution for this problem? Any help would be appeciated! Thanks to all