It is fine to combine 2x4GB Corsair Vengeance 1600 Mhz with 1x8GB Corsair Vengeance 1600 Mhz ?

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harisrestuutama

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Dec 31, 2017
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my old ram 2x4GB Corsair Vengeance 1600 Mhz
and I want to upgrade with 1x8GB Corsair Vengeance 1600 Mhz because my friend give it for free

Is it fine ?

what about my dual channel motherboard performance after I insert 1 RAM ? (2 Ram 4GB become 3 RAM (4 GB, 4 GB, and 8 GB)

My Motherboard MSI 970A G46
 
Solution
jdog2pt0


If you buy a matching 4 stick set, then yes you can still enjoy the performance gains from dual channel. Your performance will not be any better or worse than if you only had two sticks though, as your motherboard does not support quad channel.
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jdog2pt0

jdog2pt0

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You will lose dual channel and thus all performance gains from it. Mixing and matching RAM is risky for system stability. While I see that they are the same brand and frequency, if they have different timing/voltage requirements you're asking for trouble.
 
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harisrestuutama

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Dec 31, 2017
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so why there are 4 slot RAM for dual channel motherboard ?

is it better to just place 2 RAM (because dual channel will on) rather than insert 4 RAM in dual channel motherboard
 
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dudio

dudio

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Apr 26, 2015
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What he's saying is you need matching pairs to enjoy dual channel, and you can certainly fill up all slots..as long as they are a matching set. When you start mixing and matching, even a 'similar' set, it may not work. And they always need to be in pairs. You using an odd 3rd slot defeats dual channel.
 
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harisrestuutama

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Dec 31, 2017
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i see... so i can still enjoy dual channel with 4 RAM if I buy 4 RAM kit
 
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dudio

dudio

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Apr 26, 2015
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Read the first reply here again.
 
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jdog2pt0

jdog2pt0

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If you buy a matching 4 stick set, then yes you can still enjoy the performance gains from dual channel. Your performance will not be any better or worse than if you only had two sticks though, as your motherboard does not support quad channel.
 
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