threadstarter, which one is your RAM? go to this page and click on your model...inside the pdf file, there is a rated voltage for ur ram.

http://www.corsairmemory.com/corsair/xms2.html

What do you mean you dont know? Whats the point of buying high performance RAM and motherboard if you dont know how to use it? Im sorry to say that but you better read around if you want to know whats Im talking about. Its too long and tiring to tell you one by one about RAM timing

Heres one, but its for DDR. DDR2 timing is diffrent but the same formula applied (higher values are more stable but slower and vice versa):
http://www.andrew.cmu.edu/user/fma/P4tweakRAM2.htm

You need to find the correct timing for your RAM, the value I specified is from AtomicPC website reviewing your RAM (I believe). Go to Corsair website and see the correct timing

wats the highest voltage i can go with a KVR DDRII running on Micron D9 chip (square ones)?