This module is compatible with the A68HM-E33 motherboard, so it should work.
After clearing CMOS (again) try the other HyperX module (by itself) instead.
If this other HyperX module works, then shut down the computer and swap this module with the first HyperX module. If the computer fails to boot/run with the first HyperX module then it is possibly (partly) faulty.
If the other Hyperx module also fails to boot/run the computer, then both HyperX modules may be (partly) faulty.
If the HyperX module(s) appear to be faulty, can these module(s) be tested (one at a time) in another computer (again) to verify that they may be faulty?