Mixing two memories with exact same specs

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R

ReallyPissedOff

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Jan 29, 2014
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Straight to the point:

This is my current ram: http://www.kingston.com/datasheets/khx1600c9d3k2_8gx.pdf

This is my planned add on: http://www.kingston.com/dataSheets/KHX16C9T3K2_8X.pdf

I've checked out "every single spec" every stat, fact, i even checked the typos. Everything is exactly the same. But still wanted to ask. My current modules are in 1-3. The add ons will go to 2-4.

I know selling and building a new ram stack is healthier but i've found the addon rams at an insane price! Just wanted to get the wisemen's "go ahead" before getting these.

Awaiting the answers of the experienced builders here.
 
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MrKrako

MrKrako

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Apr 17, 2016
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They would work, that's for sure. What are you asking here, i guess, it's about the Dual-Channel, right?

In that case, Dual Channel SHOULD work fine. Both are from Kingston and has the same specs. But to aim for Dual Channel you always should try to pair them with the very same RAM. That's why manufacturers sell RAM kits.

So, in THEORY, they should work together in Dual Channel.
 
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T

thx1138v2

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Jun 18, 2011
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The RAM modules may or may not work together. Due to process variations during manufacture, sometimes modules from the same batch do not work together. Manufacturing process variations occur due to environmental factors and wear and tear on the manufacturing equipment. The reason RAM is sold as X2 or X4 "kits" is because they have been tested together and are guaranteed to work together.

That said, your due diligence is commendable and will produce the best chance of the modules working together. That, however, is not guaranteed. Its still a crap shoot.

Even if they do work together initially, they may cause instability later. We think of solid state devices as fixed but they do "age" during use due to expanding when hot and contracting when cooling down.

If they're cheap enough it may be worth the risk but do be aware of later instability issues. If instability occurs, that would be the first thing to check.
 
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R

ReallyPissedOff

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Hmmm... both detailed answers. My questions wasn't about dual channel(it was about voltage stability etc.) but that's good to know too (I know about the dual channel rule. slot 1 and 3 should be from the same kit and slot 2 and 4 should be from the same kit. Not 1-2 and 3-4.) Actually, even though these are insanely cheap, i'm actually stuck with this hyperx beast stuff. You see, my ram is 1.5v but i constantly run them with xmp enabled. So my current ram is always 1.65v. That's why i was looking for a ddr3 cl9 1600mhz ram with 1.65v xmp profile. And these are the only ones still selling in my country. All the other ddr3 cl9 1600mhz rams with 1.65v xmp profile are discontinued.
 
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