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NB vs NB VID

post #1 of 3
Thread Starter 
Hey all,

I was reading some info on this site about NB and raising the voltage. I have one that says CPU NB and another that says CPU VID NB. which one do I bump the voltage up? I was reading that 2600-2800 is a good target when overclocked at 4GHz+. What is the difference between the two anyway?
    
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post #2 of 3
NB is voltage applied directly to the northbridge. CPU-NB voltage is applied to a part of the CPU (basically the memory controller), which helps you run faster memory and higher NB frequency. And NB frequency, despite what it's called, is actually the speed of the CPU's memory controller and L3 cache. BTW keep HT Link at 2000mhz (or close to it if you're OCing via FSB).

http://sites.amd.com/us/Documents/AM...ning_Guide.pdf

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post #3 of 3
Thread Starter 
Quote:
Originally Posted by Dopamin3 View Post
NB is voltage applied directly to the northbridge. CPU-NB voltage is applied to a part of the CPU (basically the memory controller), which helps you run faster memory and higher NB frequency. And NB frequency, despite what it's called, is actually the speed of the CPU's memory controller and L3 cache. BTW keep HT Link at 2000mhz (or close to it if you're OCing via FSB).

http://sites.amd.com/us/Documents/AM...ning_Guide.pdf

Thank you so basically just to be clear if I have to I bump the voltage on the CPU VID NB?

The only reason why I want to make sure is because when I go to NB and choose another voltage (i dont save it just seeing what it does) nothing changes.
    
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