I intend to upgrade my rig soon (adding another radeon 6950 and changing my RAM maybe...) About the RAM... what should I do? I have 8gb (2x4gb) ram 1600 mhz running at 9 9 9 24... I've heard I could lower those timings... but frankly I'm no expert at tweaking the RAM settings... When I get in the configuration page in the bios for RAM... there are like 200 settings... makes me confused... I was going to get myself another radeon 6950 to crossfire... but I've talked with a local computer technician who tells me that my motherboard might limit a little bit my Crossfire performance being that it will keep it at 8x instead of 16x PCIe... He also seems to think that I should have faster RAM (2000mhz instead of 1600) He thinks it would allow for a better overclock and FPS increase and better crossfire performance... But after what I read on the internet, it looks like just reaching the 2000mhz speed can be complicated with some mobos... Also I'm worried about temps... since my actual temps are just ok right now with the 1600mhz sticks. I guess I might have problems with the 2000mhz sticks... How much of an FPS increase can you get out of 2x4b sticks 2000mhz? Lastly, should I buy instead 2000mhz ram but lower its speed to like 1800mhz or even 1600mhz to get lower CAS... like 7 or even 6...???