dual channel vs quad channel memory

[Atreyo Bhattacharjee]

What is the difference between dual channel memory and quad channel memory? Does dual channel memory have 2 ram sticks and quad channel 4? Also what does it mean when a chip set supports quad or dual channel memory?

 

[gasaraki]

When a board supports quad-channel memory, you need 4 memory sticks to get the 4-channels. However quad-channel boards also will run in dual or single channel mode when you use 2 sticks or 1 stick of memory. It just won't be as fast.

 

[Snipergod87]

Sounds like homework.

 

[Atreyo Bhattacharjee]

When a board supports quad-channel memory, you need 4 memory sticks to get the 4-channels. However quad-channel boards also will run in dual or single channel mode when you use 2 sticks or 1 stick of memory. It just won't be as fast.

So Ryzen is dual channel, but how can I run 4 sticks with it?

 

[Eximo]

You install 4 matching memory sticks. The board/CPU only has two memory channels, so you'll end up with two memory banks each with two sticks.

 

[clarkjd]

A ram kit, be it dual or quad channel are sticks of ram that have been tested to work together. Now, since a quad channel kit will work together in a quad channel setup, All 4 will also be more likely to work in a dual channel setup that two dual channel kits, even if the dual channel kits are the same make and model.

 

[r34turbo]

You install 4 matching memory sticks. The board/CPU only has two memory channels, so you'll end up with two memory banks each with two sticks.

Hi just wanted some further clarification on this. Im having trouble getting my head around 1 channel doesn't equal 1 dimm. i.e. 4 channels doesn't equal 4 dimm.

I have the following setup. I wanted to use the following memory x 4 to make up 64gb. Will 4 sticks work with this cpu, or will only the first 2 get used (cpu is max 2 channels)?
Also, the CPU says DDR4-2133/2400. Does that mean the 3200 memory sticks aren't even being fully utilised?
thank you any help would help, I'm a total noob.

G.Skill Ripjaws 16GB Single DDR4 3200 Desktop RAM.

CPU: Intel i7-7700K.
Max Memory Size- (dependent on memory type) 64 GB
Memory Types- DDR4-2133/2400, DDR3L-1333/1600 @ 1.35V
Max # of Memory Channels- 2

Mobo: Asus Z270 ROG Maximus IX Hero:
4 x DIMM, Max. 64GB, DDR4 4133(O.C.)/4000(O.C.)/3866(O.C.)/3733(O.C.)/3600(O.C.)/3466(O.C.)/3400(O.C.)/3333(O.C.)/3300(O.C.)/3200(O.C.)/3000(O.C.)/2800(O.C.)/2666(O.C.)/2400(O.C.)/2133(O.C.) MHz Non-ECC, Un-buffered Memory
Dual Channel Memory Architecture