Sylvia,
congratulation to Intel's investigation. Hope that you will non-solve many other dh87rl-problems on the same way (I don't care about CPU-Z, but I care about my not booting dh87rl-Motherboard from USB3.0port !)
I will do what many others have done before: Sending back dh87rl and recommending: Be aware of Intel's dh87rl and better take competitors mainboard.