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Adding more memory to an OC'ed system

R

rodboev

Junior Member
I have a 2.13 GHz E6420 OC'ed to 3.0 Ghz via a 350MHz FSB. I bought PC2 6400 RAM so I could go up to 400 MHz FSB (and the RAM to 800 MHz). Right now the RAM is running at 750 MHz at 4-4-4-12 and everything is very stable.

I have two 1 GB sticks in there, but want to double that to 4 GB. When I was putting the system together and expressed an interest in having 4 GB total, a poster here said that I should get two 2 GB sticks, not four 1 GB sticks. I think it may have had something to do with the OC'ing.

Does it matter? What's the basis of this?
 
Some motherboards have a "hard time" dealing with 4 memory modules, often requiring the increase of the Northbridge voltage.

Some will never be stable with 4 sticks of RAM, and people have to keep their RAM "underclocked" from 800MHz to 667MHz (e.g. 650i chipset MB's like mine).

I've been lucky with my MB, but I also have RAM with the same memory chips from the same manufacturer, and the required RAM voltage is only 2.0V.

Basically, you won't know until you try it. I would strongly suggest using the matching 4 sticks though.

And bring your OC back to stock, and start the overclocking from the beginning. Don't just mount the extra memory in an overclocked stable machine working with 2 sticks.

Good luck!
 
Thanks for the info. I've got the GA-P35-DS3L with two of the G.SKILL F2-6400CL4D-2GB modules. The reviews for both the mobo and the RAM are overwhelmingly positive so I have a good feeling. Thanks again.
 
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