Ok I built my machine back in Feb. Everything runs awesome! Except my ram! To me this is very odd - Sometimes I can change the timings and run the parts at their rated DDR3 1866 speeds other times I change the settings and Windows (or the Motherboard ???) rejects them and I have to let the board clock them down to 1333MHZ or 1600MHZ. - Which is against the point of me trying to get faster RAM? :p The board and the RAM both support a Dual Channel config.
What am I doing wrong?
My build:
AMD FX 8350 at 4GHZ water cooled with Cooler Master Seidon 120V
Gigabyte GA-990FXA-UD3 rev 4.0 Motherboard
G.SKill Sniper Gaming Series RAM DDR3 1866 - 32GBS
Kingston SSDNow v300 240gb SSD
Western Digital Blue 2TB Sata 3 6.0Gbit\s
Cooler Master V850 - 805W power supply - Modular
ASUS Blu-Ray burner - 16D1HT
Cooler Master HAF 932 Advanced Full Tower Case
BitFenix Recon 5 channel Fan Controller
2X Sapphire Tech Vapor-X R9 270X GPUs - Crossfire - 2GB GDDR5 256-bit Mem Interface