Compatible memory ?

Readyy
on idea all should work. Run a read test of the memory in HADES and see what is written there, if dual DDR3, then it is in dual channel mode. The second strap at worse timings, i.e. timings the system is aligned at a slower level.

I do not remember how to look in Aida, but you can download the utility cpu-z in the Memory tab (memory) to see written in string Channel Dual.
If it is written, so strap work in dual channel mode and everything should be approx. As already wrote above, timings, and frequency are aligned to the lowest value of the bars.

PS If mother 4 slots for RAM, then to activate dual-channel mode strap should stand to each other in one slot.

Artie
Many of the mothers to install memory in pairs spaced slots of different color. If all slots are the same, it is necessary to look the instruction to the nurse. Not always installed via Odin!

Artie
on the motherboard two slots

Two slots, so two channels. The amount of strips is the same. Frequency and timings are aligned on both channels at the slowest.
You have dual channel mode. Sure.