DDR3 1600 problem... plz help.

I recently built a new computer and I am using 8GB of G. Skill RipJaw DDR3 1600 (Dual Channel) memory on an ASUS M4A79XTD EVO AM3 Mobo. When I read my memory's clock speed under bios or even AMD Overdrive it tells me its only running at 667mhz (total 1334mhz) when it should be running at 800mhz (total 1600mhz). So now whenever I change it in either bios or Overdrive to 1600mhz all my games (Crysis, Farcry 2, F.E.A.R. 2, ect...) tend to crash like 2mins into a level and when installing patches they just stop and tell me theres an error. Plz help me! I just want my memory to run at its factory 1600mhz speed...
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More about ddr3 1600 problem help
  1. What are the rest of the ram recommended settings? There should be a voltage (like 1.65V) and timings (like 7-7-7-21) to go along with the speed of 1600. What is your exact memory model number?
  2. The exact Model is "G.SKILL Ripjaws Series 4GB (2 x 2GB) 240-Pin DDR3 SDRAM DDR3 1600 (PC3 12800) Desktop Memory Model F3-12800CL9D-4GBRL" and this is a link to the memory http://www.newegg.com/Product/Product.aspx?Item=N82E16820231277
  3. So are the timings (manually) set to 9-9-9-24-2N and voltage at 1.5V?
  4. Ya. Under bios and overdrive all the settings seem to be normal except the clock speed which is only 667mhz off the bat. And then I bring it up to 800mhz and leave all the settings the same and start to play crysis and it crashes. Btw what does each of the numbers 9-9-9-24-2N stand for? And under and overdrive I see a 2T but not a 2N.
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