Tom's Hardware > Forum > Motherboards & Memory > Memory > Dual Channel activation
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shinku_sai   06-09-2009 at 08:02:09 AM

Good day to all!!

First of all I would like to say... NOOB HERE.... :D

Anyways, I was wondering if there is anyway to enable Dual Channel on my mobo (MSI780G-M). I know for a fact that I must have at least 2 sticks of memory. Other that that.. Do they have to be of the same capacity? As I have Kingston DDR 800 3GB on my system (2GB+1GB). Yet I still see SINGLE channel in CPUZ. Is there another way to enable the dual channel feature? Or should I put another 1GB of memory in and take the 2GB out? Would this offer performance better than SINGLE channel 3GB? That is if I am usually either using Word or Excel and casually gaming on DMC4, NFS Carbon and Warcraft III.


Message edited by shinku_sai on 06-09-2009 at 08:29:40 AM
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wuzy   06-09-2009 at 08:28:21 AM
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Won't work two different capacities I'm afraid. Your motherboard's manual would have indicated so as well.

2GB on one channel and 1+1GB on another might enable dual-channel.
Otherwise the most obvious is to stick with two same capacity modules with relatively close specs.

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shinku_sai   06-09-2009 at 08:34:43 AM
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wuzy wrote :

Won't work two different capacities I'm afraid. Your motherboard's manual would have indicated so as well.

2GB on one channel and 1+1GB on another might enable dual-channel.
Otherwise the most obvious is to stick with two same capacity modules with relatively close specs.




Thank you for such a fast and speedy reply!!!

If it doesn't then I guess I made a mistake in buying 3GB instead of 4GB.. I was taking into consideration the 4GB barrier of a 32-bit OS thus that is what pushed me to buy it! Bad choice I guess. I will go ahead and buy another 2GB instead... Its the most logical solution as to help future proof my PC as well! :D

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wuzy   06-09-2009 at 08:43:35 AM
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What made you stick with x86(32-bit) version? If it was just one particular old piece of component that didn't have x64 driver then the best option is to replace it with a newer one.

x64 is the standard commonly used today as long as your processor supports it and drivers for various hardware/peripheral for VIsta x64 can be easily found now compared to last year.

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Brand is for the weak-minded, only product matters.
Resilient to marketing.
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starams5   06-09-2009 at 08:46:55 AM
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Hi S

Check your user manual for duel channel configurations.

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Zenthar   06-09-2009 at 08:17:22 PM
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I would say just get a 2nd 2GB modules even if you have a 32bits OS. You won't be able to use all the 4GB (probably ~3.5GB), but you will have dual channel and it will work without issues.

As for technical stuff, for dual-channel to work things have to be symmetric. To play on the safe side use modules all of the same size, but some boards will be more permissive and allow things like 1GB+512MB+1GB+512MB because the modules are symmetrically distributed.

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