PC3-10666 vs PC3-12800

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In a server you are going to need the most stable RAM setup you can get not necessarily the fastest. The latest DDR3 1600 should be cas 9 and 1.5v. Anything with higher cas latency or voltage will be lower quality or at least older.

That Crucial looks excellent. Crucial is the consumer sales division of Micron so their RAM is always very high quality. Other companies that don't manufacture actual RAM modules like Corsair and GSkill use Micron in many of their higher end kits.

I would try the new 16GB before I added the old stuff to it though. It might be enough for your needs without risking instability.
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Tradesman1

Tradesman1

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Jun 5, 2013
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You can try, they might or might not play, if they run at the default of 1333, can manually set to 1600 and the specs for the 1600 stick(s) then raise the DRAM voltage about + 0.06 and raise the CPU/NB voltage to about 1.2 and they might both run at 1600
 
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Maybe. You never know if mixing RAM will work before you try. When mixing sticks with drastically different speeds and timings like those it may very well not work or give you errors if it does. The DDR3 1600 is either very old or just low quality to be cas 11. I can't see a situation where you need more than 16GB of RAM and it helping to add 4 more GB of slower RAM. What are you doing that needs so much RAM?
 
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alpha12903

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I have never thought about CAS before- a quick google search showed that lower is better. Would this be any better http://www.newegg.com/Product/Product.aspx?Item=N82E16820148600 ? It has CAS 9

And this is a server that will be under heavy load (I currently have 10GB of RAM and it is maxed out constantly) and it is unbearably slow.
 
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Deleted member 217926

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In a server you are going to need the most stable RAM setup you can get not necessarily the fastest. The latest DDR3 1600 should be cas 9 and 1.5v. Anything with higher cas latency or voltage will be lower quality or at least older.

That Crucial looks excellent. Crucial is the consumer sales division of Micron so their RAM is always very high quality. Other companies that don't manufacture actual RAM modules like Corsair and GSkill use Micron in many of their higher end kits.

I would try the new 16GB before I added the old stuff to it though. It might be enough for your needs without risking instability.
 
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