MAC mini a1176 upgrade 4 gb of memory, wireless network card is not available, my MAC mini a1176 upgraded the 4 gb of memory (2 gb memory chips), found that the wireless network card is unusable, show did not find hardware, thought is wireless network card is not good, put a few or no, then reinstall the system or not, on taobao bought a wireless network card to install or not found hardware, then inadvertently see online 32-bit computer install 4 gb of memory will lead to take up the wireless network card address, lead to wireless network card can't use,
Solution is to install the memory drop back to 3 g or 64 - bit systems, although the problem is not big, also is not very technical, but the computer wireless network card can't use can not find the reason it is scratching his head, in this, would like to share my experience, in order to make everybody to save some heart,