Crazy stuff happening on Gigabyte 790FX-UD5P + G. Skill Ripjaws red 1600Mhz rated C9-9-9 24 1.5V

First of all, where did you guys noticed vmem droop on this mobo? Actually it overvoltage mine ram. Set 1.7V and u get 1.75V in DMM, 1.75 and I got an 1.81V!

About the RAM:

No way to get it stable working on Cas7 using 1333Mhz divider but what about Cas6 @ 1600Mhz when using 1066Mhz divider?

Even in this setting there is no way to match TRCD and TRP w/ the CAS there must be an 9 in TRCD to pass 1500Mhz, and unless an 7 for TRP.

Stability Gains can be observed when using higher voltage, anyway I only tested till 1.85V in bios wich actually gave me 1.90V (DMM). thats the only way to get it stable @1600Mhz 6-9-7. By the way I can use 1.75V and get 1600@ 6-9-8 1T.

Any hint of wich chips are them? I've paid like US$135 for 2x 2GB of them. Already in Brasil.