The memory should not be run on Auto settings for longer than it takes to enter the memory manufacturers recommended settings. Assuming you have the memory in the recommended slots, I see that the memory should be run at 1600Mhz and Timing 9-9-9-24.
To set memory to 1600MHz:
Select the MB Intelligent Tweaker Menu in BIOS:
Go to the Set Memory Clock setting and change it from Auto to Manual.
Set Memory Clock to X8.00
Next, go to the DDR3 Timing Items setting and change it from Auto to Manual.
Set 1T/2T Command Timing to 2T
Set CAS# latency to 9
Set RAS to CAS R/W Delay to 9
Set Row Precharge Time to 9
Set Minimum RAS Active Time to 24
These are just the first four numbers, others on Auto are okay.
DCT's Mode should be set to Unganged.
Save and exit the BIOS.
Information on these settings is also found in the downloadable manual. That should be a huge improvement.