[SOLVED] New memory kit not running in dual channel?

funchal99

Commendable
Dec 16, 2017
16
1
1,525
1
Hello there,

So, I previously had a 2x8gb set with my gigabyte z170m-d3h motherboard running fine in Dual Channel. I recently decided to buy another 2x8gb set, also from Corsair, exact same model and speed down to the Part Number. From my understanding, this new set should also work in dual channel (the first set is installed in slot 2 and 4, while the new one is installed in 1 and 3). However, using CPU-Z, it shows that this new set is working only on single channel (and also that the manufacturer seems to be different):

https://ibb.co/17FPJfg

The old set memory, for reference:

https://ibb.co/S3rjsBj


Since it's a new set pretty much identical to the old, installed on channel B, shouldn't it also run on dual? Is there anything that can be done?

Thanks in advance for anyone kind enough to reply.
 

FoxVoxDK

Honorable
Jul 5, 2014
556
40
11,190
57
You are confusing memory Ranks with Memory Channels.

Memory Channels:
View: https://imgur.com/r7yE3Pd


Ranks on Memory stick:
View: https://imgur.com/5K5a33a


The difference is whether or not your RAM is single-sided single-rank(RAM chiplets on one side of stick) or dual-rank dual sided(RAM chiplets on both sides of stick).

The other option is having one "address" chip on a dual sided stick, making it single rank.

Dual rank, essentially increases your performance under heavy RAM usage by dividing your stick into 2. So if one side is in use the other side is open for business.
In some use cases(not gaming) this can increase bandwidth and response times.
 
Last edited:

FoxVoxDK

Honorable
Jul 5, 2014
556
40
11,190
57
You are confusing memory Ranks with Memory Channels.

Memory Channels:
View: https://imgur.com/r7yE3Pd


Ranks on Memory stick:
View: https://imgur.com/5K5a33a


The difference is whether or not your RAM is single-sided single-rank(RAM chiplets on one side of stick) or dual-rank dual sided(RAM chiplets on both sides of stick).

The other option is having one "address" chip on a dual sided stick, making it single rank.

Dual rank, essentially increases your performance under heavy RAM usage by dividing your stick into 2. So if one side is in use the other side is open for business.
In some use cases(not gaming) this can increase bandwidth and response times.
 
Last edited:

funchal99

Commendable
Dec 16, 2017
16
1
1,525
1
You are confusing memory Ranks with Memory Channels.

Memory Channels:
View: https://imgur.com/r7yE3Pd


Ranks on Memory stick:
View: https://imgur.com/5K5a33a


The difference is whether or not your RAM is single-sided single-rank(RAM chiplets on one side of stick) or dual-rank dual sided(RAM chiplets on both sides of stick).

The other option is having one "address" chip on a dual sided stick, making it single rank.

Dual rank, essentially increases your performance under heavy RAM usage by dividing your stick
Oooh, I see now. And yeah, in CPU-Z de channel in the memory tab says dual, so I suppose it is indeed working properly. Sorry for not realizing it sooner and thanks for the clarification!
 
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