I never find my adapter to " detect the CF card when I insert it. " My method is a little different. I insert the CF card then I plug that adapter into the USB port. Then it works. If I plug the adapter in to the USB port then insert the CF card, it doesn't work.
Since this is a builtin card reader you can try the alternative and plug it in then reboot to see if it's that other issue but frankly I'd go get some USB card reader and forget the built in one as any shop visit will cost a lot more.
I have a HP a6734f desktop, Windows 7, 64-bit. The built-in 15 in 1 card reader does not detect the CF card when I insert it. In fact, the little green light doesn't come on at all. When I click on "Computer", there is no drive for it. just C, D and E (CD -Rom). Tried Device Manager, nothing that I could find. Any advice is greatly appreciated.