Hi! I am using mobo Gigabyte H55M-S2 as u see and i just bought 1 Dual Channel Kit of RAM KINGSTON HyperX Savage 4 GB , 1600 mHz. So the problem is that my mobo supports up to 1333 mHz DDR3 and if RAM is OC it supports to 1666. My new RAM sticks are 1600 mHz and normally it shouldn't start with 1600 mHz freq. So BIOS automatically swap to 1333 mHz and PC still doesn't want to boot. After this I lower the CAS Latency, I tried to change multipliers, I tried XPM Profile1, already tried to change freq to lower value than 1333 and ram is still not working like it must be. So I decided to try other RAM DDR3 1600 mHz. I get 2x4 GB Kingston Genesis which are quite similar to mine but same thing happened. I tried it with brand new SSD HyperX Savage 120GB, i tried with my old (which have O.S. Win7 x64) and i have no idea what should be my next step? btw I update BIOS cuz it was F3 and i found that F4 had improved memory support. Everything is working fine with my old 2 sticks of Kingston DDR3 2GB 1333 mHz.
PC Conf.:
Motherboard - GA H55M-S2 (F4)
RAM - 2x4GB Kingston HyperX Savage 1600 mHz
CPU - IntelCore i3-540 (supports 1333 mHz of RAM)
VIDEO - NVIDIA Palit GTX 760 2 GB , 256 bit
PSU - CHIEFTEC 500W