[SOLVED] Two identical but different RAM Kits? (OC)

Feb 16, 2023
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Good evening,

first of all I want to thank everyone who spends their time to help me and other newbies to this site!

As I upgraded my 8600k to an 13600k on a MSI Z690A PRO DDR4, I want to start OCing my CPU and RAM.
Since I am not that familiar with RAM OC, I came here to get some help. I already read a lot of guides and forum discussions, but I really couldn't get any step further.

I am currently running two Kits of "Corsair LPX 3000MHz C15" (4x8gb in total). The first one I bought in dec 2018 and the second was bought in 2021.
Both are the same, even the Part Number. Both have Hynix chips on them.
BUT why is one Kit single ranked and the other kit dual ranked? Do I get any disadvantage related to OCing both at the same time?
Is there anything I have to look out for?

In the Screenshots you can see the details from CPU-Z.
https://www.yogile.com/9rth02fybn1?vsc=69746f02c#21t

As I already said, thank you very much for your help!

EDIT: Slot1=Slot3 (single ranked) and Slot2=Slot4(dual ranked)
 
Last edited:
Solution
It likely is related to the cost of the chips. They likely can have fewer actual physical chips that have 2 times the storage.

This is exactly why they say you should always buy your memory in kits. Even though the part number stays the same the parts on the boards can change. I suspect there is a marking on the kits that say how many ranks they have even though it tends to be in small print.

I am somewhat surprised you have it running OC at 3000 already. It is messy when you run memory in all 4 slots and then you have a mix of single and dual rank.

It is already the best you can do without going in and manually trying to set the values over the XMP configurations.
It likely is related to the cost of the chips. They likely can have fewer actual physical chips that have 2 times the storage.

This is exactly why they say you should always buy your memory in kits. Even though the part number stays the same the parts on the boards can change. I suspect there is a marking on the kits that say how many ranks they have even though it tends to be in small print.

I am somewhat surprised you have it running OC at 3000 already. It is messy when you run memory in all 4 slots and then you have a mix of single and dual rank.

It is already the best you can do without going in and manually trying to set the values over the XMP configurations.
 
Solution

DSzymborski

Titan
Moderator
Good evening,

first of all I want to thank everyone who spends their time to help me and other newbies to this site!

As I upgraded my 8600k to an 13600k on a MSI Z690A PRO DDR4, I want to start OCing my CPU and RAM.
Since I am not that familiar with RAM OC, I came here to get some help. I already read a lot of guides and forum discussions, but I really couldn't get any step further.

I am currently running two Kits of "Corsair LPX 3000MHz C15" (4x8gb in total). The first one I bought in dec 2018 and the second was bought in 2021.
Both are the same, even the Part Number. Both have Hynix chips on them.
BUT why is one Kit single ranked and the other kit dual ranked? Do I get any disadvantage related to OCing both at the same time?
Is there anything I have to look out for?

In the Screenshots you can see the details from CPU-Z.
https://www.yogile.com/9rth02fybn1?vsc=69746f02c#21t

As I already said, thank you very much for your help!

EDIT: Slot1=Slot3 (single ranked) and Slot2=Slot4(dual ranked)

Because they're not the same. There's no such thing as identical RAM, just RAM that has been tested at a certain spec and then given a label consistent with their testing. RAM, like CPUs, are a binned product; models are basically the degree of defectiveness. There's no assembly line specifically making RAM to be labeled "Corsair LPX 3000MHz C15."