Issues with 1866MHz RAM on GIGABYTE 970A-D3P motherboard

[mstojanovic]

I have the following configuration:
GIGABYTE 970A-D3P
AMD FX-8320
ASUS GeForce GTX970
2x Kingston HyperX Fury 240 SSDs in RAID0

and I've recently bought 2x8GB Kingston HyperX Savage 1866 set.

I've installed the memory modules, and all is good. After a day or two I booted into BIOS to check for something else and I noticed that the memory runs at 1600MHz. Then I ran CPU-Z and also found out that the memory is not running in dual channel mode (but later I remembered that that's expected since I have the modules in two differently colored slots).

I also noticed in BIOS that the multiplier for memory is set to 8 (instead of 9.3), so after browsing through forums, I found out that I should try to change the multiplier, so I did. After I did that, I was unable to turn on the PC, not even to boot to BIOS. So, I've removed one module, turned on the PC, booted fine to BIOS and saw that the frequency now is 1866.

I returned the other module to the same slot, tried to boot, failed. Tried different combinations and the only time the PC won't boot is when both modules are installed - either one of the modules can be alone and it would boot just fine.

I reverted the multiplier to 8 and successfully booted with all 16 gigs and I'm looking for a solution for this problem.

 

[Tradesman1]

Start with 1 stick, set to 1866 and the proper timings,m then raise the DRAM voltage to 1.55 and raise the CPU/NB voltage to 1.25