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Newbie question about mixing RAM modules

post #1 of 5
Thread Starter 
Hi,

At the moment I have two 4GB RAM modules running via dual channel (both identical and bought as pack). I have got a 2GB DDR3 and a 1GB DDR3 lying around. Will there be any problems me adding those to my memory bank? I don't really need the extra RAM, but if it doesn't hurt, why not put them in? smile.gif

Just making sure. Rig in sig.

Cheers.
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post #2 of 5
It probably will work, give it a try and see. I've rarely encountered issues mixing RAM modules of different types/timings/manufacture, except on high-end server/workstation hardware.
post #3 of 5
I'm not sure if it will continue running Dual Channel if there's different sized modules being mixed around, but I don't think it will hurt.
    
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post #4 of 5
General rule of thumb do not mix and match modules. Can and might cause issues, but even further they probably will work, however keep in mind all ram get's set to slowest ram module. If one is say 1866 MHz and one is 1600 MHz they all run at 16, its whatever the slowest stick is. So from a performance stand point best to keep ram packs together. I also learned something from corsair i didn't know not to long ago. it is true that they sell ram packs, and they use different revisions. I had same model ram one revision and and other revision b and it was actually causing conflicts with my setup. So its very important to pay attention that you are using same ram timings brand and speed. Your ram might work but it wont be optimized or even worse cause instability.
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post #5 of 5
Memory bandwidth isn't as important as it used to be and even in the cases with dual channel might help more memory will be better...if you are running out.

However, it is really hard for me to get over 8GB of system memory usage...actually even 6GB is hard. I'd keep the dual channel going if I was you. Though I doubt you will really see much of a difference either way.
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