I have Windows 7 on the D830. Wifi is recognized and works in either the Wifi or WWAN slot, but Bluetooth is not recognized at all in the Wifi slot (doesn't show up in device manager, same symptom as you). I do have some other issues with the current driver from Sager not working too well on Windows 7 with the card in either slot, but I'm pretty sure that's a software issue for me since it works beautifully in Linux. It's possible things might work for you in the WWAN slot (both your laptops have one?). It probably depends on the BIOS. On my D830, the BIOS only has a whitelist on the Wifi slot, the WWAN slot appears to act as a completely open and normal miniPCIe slot and all functionality of the card works just fine.
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