RAM upgrade questions?

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gabriferre

gabriferre

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Sep 27, 2017
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Hey, I want to upgrade my RAM. I have installed 8 Gbs of DDR3, Corsair Vengeance model CMZ8GX3M2A1600C9, 1600 Mhz. Now, is it better to buy the same RAM and having 16 Gbs, or is it better to buy a faster model, like Corsair CMY8GX3M2A2400C11R Vengeance 2400 Mhz and still having 8 Gbs? If I buy the faster model, can I underclock it to make it run with the other model to have 16 Gbs?

Pc specs:
Mobo: Asus Z87-K
Processor: Intel(R) Core(TM) i7-4770 CPU @ 3.40GHz
GPU: PALIT Nvidia 1060 6GB
 
Solution
10tacle
Whether you have one 8GB stick or 2x 4GB, if you add an additional 8GB of RAM (in either format) you may or may not have problems with it. Memory is sold in kit form (2x or 4x) for a reason: they are made at the same time and tested to work with each other. Over time, production tolerance variations can cause memory to be finicky playing with each other, as well as vendors like Corsair might use different memory modules even among the same model line (they may use Micron memory in one production cycle, and Samsung in another).

If you do get it to work, and they are two different speeds, the faster memory will only run at the slower memory's speed. In the days of old DDR2 and prior memory tech, you could get away with mixing and...
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10tacle

10tacle

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Dec 6, 2008
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Whether you have one 8GB stick or 2x 4GB, if you add an additional 8GB of RAM (in either format) you may or may not have problems with it. Memory is sold in kit form (2x or 4x) for a reason: they are made at the same time and tested to work with each other. Over time, production tolerance variations can cause memory to be finicky playing with each other, as well as vendors like Corsair might use different memory modules even among the same model line (they may use Micron memory in one production cycle, and Samsung in another).

If you do get it to work, and they are two different speeds, the faster memory will only run at the slower memory's speed. In the days of old DDR2 and prior memory tech, you could get away with mixing and matching without errors most of the time. With DDR3 and especially DDR4, the tolerances have gotten very narrow on what will, and will not, play nice with each other.
 
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