Different memory than motherboard support list?

Solution
You currently have 2 channel (basically A and B) - A is the 2 slots closest to the CPU and B channel the two furthest away - so normal config in sticks in slots 1-3 or 2-4 so you have 1 stick in each channel....the MC (memory controller) then sees both sticks (or all 4 in the event you have fully populated the slots) as 1 single 128bit device (each DRAM stick is a single 64bit device) and from that you can gain a performance increase of appr up to 10-15% vs single channel mode....If you were to run say 3 sticks - it would run in what's called Flex mode - the mobo would see 8GB in each channel and run it in dual channel mode and see the 3 rd stick as an odd 8GB and would run it as single channel alongside the other 16GB that are in dual...

Chris_6

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Jan 23, 2014
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@ Tradesman1 - I don't have a K model CPU, but I managed to easily OC 3.6 from 3.0 using the AsRock board. So I am curious how it will work, I don't see the point in buying slower memory, as its only like 50 bux cheaper.

Anyway, I am having a hard time understanding Dual-Channel memory.
What I am confused about is the memory I want to buy is 16GB (2x8) Dual Channel... what if I want to upgrade in the future and get two more sticks, does this mean my 4 memory slots will be divided into two separate operations basically? if not, can someone please explain? (or am I completely off, and need to buy single channel if i want to upgrade, because I want to use all 4 of my memory slots?)
 

Tradesman1

Legenda in Aeternum
You currently have 2 channel (basically A and B) - A is the 2 slots closest to the CPU and B channel the two furthest away - so normal config in sticks in slots 1-3 or 2-4 so you have 1 stick in each channel....the MC (memory controller) then sees both sticks (or all 4 in the event you have fully populated the slots) as 1 single 128bit device (each DRAM stick is a single 64bit device) and from that you can gain a performance increase of appr up to 10-15% vs single channel mode....If you were to run say 3 sticks - it would run in what's called Flex mode - the mobo would see 8GB in each channel and run it in dual channel mode and see the 3 rd stick as an odd 8GB and would run it as single channel alongside the other 16GB that are in dual channel -best to go 2 or 4 sticks and have all in dual channel mode for best performance ;) And with your OC, go for it, and try the faster sticks, can downclock if need be and with tighter timings still get near same performance
 
Solution

Chris_6

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Jan 23, 2014
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Thanks a bunch! I finally understand :)