Why won't the laptop POST after installing intel wireless-n 7260 card?

I upgraded to from the atheros wifi card to the intel wireless-n 7260 for the bluetooth option, but my aspire 7560 won't POST after install. I place it in the secondary pci-e and i can load windows, and see the card, but can't use it. I've seen several other people having issues with this card, but none with my problem or a similar laptop. I should have researched installation issues prior to purchase...anywho. There is no bios upgrade to support the card. I installed the latest drivers, uninstalled, cleaned registry/cache, reinstalled...with this card in the wireless pci-e slot, aspire still won't POST. Any assistance would be appreciated.