Your DC mode should be "Ganged" not 'unganged" The "Unganged" mode is default for your motherboard, but since you're using more than one stick of RAM you need to set it to the "Ganged" mode. This sets the memory to a "Single Dual-channel mode".
1600MHz DDR3 CL 9-9-9-24(CAS-TRCD-TRP-TRAS)
You have your frequency and multiplier settings wrong also. Try setting the memory clock to "Auto" or "SPD" settings.
You might try using the "Optimal Default" settings from the BIOS, just be sure to set the memory to Ganged after changing the settings.
Is this your first system build? Why are your BIOS settings showing strange numbers and frequencies?
I understand that the motherboard manual will not be specific in certain areas and they are lacking about "in-depth" information. That's where you have to bite the bullet and mess with the settings slowly.
HAVE YOU READ YOUR MOTHERBOARD'S USER MANUAL?
Do you really understand what your doing with the different settings in the BIOS?
Look... I'm not trying to be a dick here, but I feel that you're trying to mess with settings that you're not familiar with.
Take it ONE STEP at a time and go slow. Don't try to change all your settings at once if you're not sure about them.
Study, I mean really study the BIOS section of the motherboard manual. When I did my new build a couple of years ago I had the hardest time getting the BIOS settings correct because I hadn't upgraded in over 7 years!! The newer hardware and RAM threw me a curve ball and it took about 8 hours of messing with the frequency, multiplier etc to get it right. (At the time the RAM I was using DID NOT automatically set it's "suggested" timings via the SPD or EPD chip.)
Keep plugging away and you'll get there. But CPU-Z is showing is that you're timings and such are all screwy compared to what your CPU and RAM should be showing.
This is what your CPU shows for standard settings, two channels on RAM equals dual-channel. Enabling the Ganged or Dual Channel mode will double the memory's bandwidth. If you are using 2 - 2GB sticks of RAM the put them in the FIRST TWO slots on the motherboard closest to the CPU socket. Gigabyte labels those slots: DDR3_1 & DDR3_2.
If you'll notice, your CPU's frequency on your system is way off from what AMD says it should be.
Try the "Load Optimized Defaults" setting first in the BIOS, press F10 to Save and Exit the BIOS, reboot and go back to your BIOS and see what the settings are now.