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Number of memory modules

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June 26, 2013 5:25:00 AM

HI guys,

I have 2x2GB DDR3 from Kingston that were working in dual-channel mode. I've a friend of mine that has the same modules and one of them has broken, so he gave me the other one.

I'd like to know if I put those 3 modules they will work on triple channel?

If they don't work in triple channel, if I use the 3 modules, 2 of them wil work in dual-channel and the other will work separately?

If they will not work in triple channel, it's more beneficial working with 2x2GB or with the 3 modules? (even not working in triple channel)

To finish,

Supposing that don't work on triple channel, I can use them the 3 modules and do overclocking normally and yet get a good performance?

kind regards.

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June 26, 2013 5:42:34 AM

Hi Amsa,

It will depend on your motherboard how the memory is used and you should check the manual to see which slots to use for triple channel. If triple channel isn't supported then it should work fine as a double channel and single and increase the overall performance of the system and still be able to be overclocked as normal.
June 26, 2013 5:48:10 AM

Hi liquid,

I forgot to post the motherboard, and of course it make sense knowing if my motherboard supports triple channel.

The board is an ASUS P5E3 "BASIC" (no deluxe, premium, etc). How can I see if it supports 3-channel? For sure the board doesn't support because it is a basic version, but whatever.

Since you said that "If triple channel isn't supported then it should work fine as a double channel and single and increase the overall performance of the system and still be able to be overclocked as normal", that means that I can use the 2x2GB modules as a double-channel and at same time another module of 2GB as a single-channel? My doubt is if it's possible to use both "operating modes" double-channel and single-channel at same time, and not only or double-channel, or single channel.

The board can run those two mode at same time?
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June 26, 2013 6:03:21 AM

Hi Amsa,

Ok, it's a little flakey at this point. Your motherboard is specced as having 2x dual channel only, therefor the motherboard will more than likely interpret 3 sticks of RAM as 2 dual channels, 1 with 2 sticks and the other with 1 stick. However it is not a recommended configuration in the manual and may result in an overall lower memory clock speed. It's a bit difficult to say which will be better, my general rule of thumb is 4gb to 6gb will be better than a lower clock speed. Since you have the memory already my advise is just to give it a test and benchmark to see which gives the better performance.
June 26, 2013 6:19:16 AM

I see. So the board doesn't support triple-channel and it is not advised to run 2x2GB + 2GB.

So tell me, if I get another module equal to that 2GB that was given to me, totalizing 2x2GB + 2x2GB from the same brand, model and speed, what you think?

There the board can run in DUAL-CHANNEL with that configuration?
June 26, 2013 6:28:16 AM

<Snip>
Sorry, dual post
June 26, 2013 6:30:00 AM

Yes, that final configuration will give you the best performance possible.
June 26, 2013 6:31:27 AM

Ok. Them I'll buy another module.

About overclocking with that "configuration" 2x2GB + 2x2GB, there will be no problem? Performance?

The fact of using 2x2GB + 2x2GB the bandwidth will not improve, right? Because they're already in dual-channel, right?
June 26, 2013 6:37:44 AM

Right, the performance increase will come from doubling up the memory, the bandwidth of the memory stays the same as quad channel isn't supported by your mobo. There won't be any additional problems with overclocking due to the increase.
June 26, 2013 6:52:44 AM

Ok, thank you very much for your reply.
!