I said,
"If you are overclocking the CPU..." I've seen DRAM values get too high with only OC'ing the CPU and RAM values set to 'Auto.' Also, XMP is not available on AMD, so the choices are to set the RAM manually in the BIOS.
You avoided the Q/A about the CPU? Again, are you OC'ing the CPU?
RAM: F3-12800CL8D-4GBXM -
http://www.gskill.com/products.php?index=350
DDR3-1600 8-8-8-24-2N @ 1.50v
CPU: AMD FX-6100 3.3GHz
MOBO: GA-880GM-USB3 (There's 2 revisions 1.x and 3.1); Q - which one?
> GA-880GM-USB3 (REV 1.x) doesn't support any AMD FX CPUs
> GA-880GM-USB3 (REV 3.1) requires FD BIOS; FE is the latest.
Again, recap, repeats:
Q1 - RAM, is the F3-12800CL8D-4GBXM the RAM?
Q2 - RAM what DIMM slots? Blue or White?
Q3 - MOBO, is GA-880GM-USB3 (REV 3.1) the correct MOBO?
Q4 - CPU, are you OC'ing the CPU?
Looking up and second guessing doesn't help you and it takes up my time.
IF you want, after answering/reaffirming Q1~Q4, I'll be more than happy to provide you the optimized BIOS settings for the RAM. The Default 'SPD' for your CPU is up to the highest 'SPD' not including XMP encoding to DDR3-1866 which is the CPU's default RAM frequency.