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RAM compatibility

Carbon fib'er

Well-Known Member
I'm using 2 * Crucial 16GB DDR4-3200 SODIMM and have no dual channel :(
How do you know you don't have dual-channel? (I didn't see anything in that screenshot. Were you looking at the "rank = single?" That's not channel, but it's better to have dual-rank memory especially with AMD cpus, from what I've read.).
 

liamhoang

New Member
How do you know you don't have dual-channel? (I didn't see anything in that screenshot. Were you looking at the "rank = single?" That's not channel, but it's better to have dual-rank memory especially with AMD cpus, from what I've read.).
As I see the Ranks on this post from the guys on page2 is dual but mine is single so I thought that my system only detect single channel :(
 

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Carbon fib'er

Well-Known Member
As I see the Ranks on this post from the guys on page2 is dual but mine is single so I thought that my system only detect single channel :(
I may still not understand, but rank isn't the same as channel (interleaved). Rank has to do with the density of the chips, the paths to them. It's usually designated "2Rx8" (for dual rank) or "1Rx16" for single rank. Either will operate as dual channel if two sticks are present to allow for interleaving the memory access.

Dual rank is supposed to be a little faster, and on AMD machines it may be considerably faster (I've read). It usually doesn't cost much more than single rank. But, many sellers don't even distinguish what they're selling. Big names like Crucial & RipJaws ignore this detail in their product descriptions (last time I looked). I like Kingston because they publish proper datasheets, detail oriented. (Also the lifetime warranty).

You could remove one stick, run that speed test and compare that to the speed test with two sticks. I think that would confirm if it's doing dual-channel with two sticks.
 

liamhoang

New Member
I may still not understand, but rank isn't the same as channel (interleaved). Rank has to do with the density of the chips, the paths to them. It's usually designated "2Rx8" (for dual rank) or "1Rx16" for single rank. Either will operate as dual channel if two sticks are present to allow for interleaving the memory access.

Dual rank is supposed to be a little faster, and on AMD machines it may be considerably faster (I've read). It usually doesn't cost much more than single rank. But, many sellers don't even distinguish what they're selling. Big names like Crucial & RipJaws ignore this detail in their product descriptions (last time I looked). I like Kingston because they publish proper datasheets, detail oriented. (Also the lifetime warranty).

You could remove one stick, run that speed test and compare that to the speed test with two sticks. I think that would confirm if it's doing dual-channel with two sticks.
Thanks bro, I got it ^^
 
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