Increasing FSB Lowers RAM's timings?


I'm kinda new to overclocking, I read many topics and guides, yet I'm still having some problems.

I've read that increasing FSB, also increases the performance(speed) of the other motherboard components, mostly RAM.

The stock is 200 x 17, Increased to 210 , everything is fine, low CPU temperature and everything, but once I increase FSB more than that, My PC stops working, I checked the BIOS , Found out that ram timings were lowered to 4-4-4-15
Even though I've set them manually to 8-8-8-24.

So what's exactly happening? I'm confused

System Specs:
CPU: AMD Phenom II 965 BE (going to change soon)
MB : MSI 990FX-GD80
RAM: 4x4 Corsair Dominator GT 2133 (9-9-9-24) 1.5V
PSU: Corsair Professional Series HX850 (850w)
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More about increasing lowers timings
  1. your fsb is a base line for your multipliers as you increase your fsb everything (dependent on that number) will increase ram north bridge hyper transport ect make sure your ram is running 1333 leave your fsb at 200 and increase your multiplier for your cpu this will allow your cpu to overclock alone and you should be fine as long as your temperatures are within 62c using a stress test
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