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Possible to mix RAM like this?


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4 replies to this topic

#1 Marth_01

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Posted 08 June 2011 - 08:15 PM

I have this motherboard, which has 4 RAM slots:
http://www.gigabyte.us/products/product-page.aspx?pid=3238#sp

A friend gave me these three 2GB RAM sticks:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145286

I tested them with the motherboard, and they work, but in single-channel mode.

If I bought this one stick of 4GB RAM:
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145328

Would it be compatible and give me 10GB of total RAM and change to dual-channel mode?
They all have the same voltage, speed, and timings.

I know you're normally supposed to install RAM in the correct sets, but this is my situation and I was wondering if this is compatible or a good idea.

Thanks.

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#2 the_patriot11

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Posted 08 June 2011 - 09:36 PM

It would likely work, but probably not in dual channel mode. I think for dual channel, you have to have matching memory sticks, either 2 matching sticks in the appropriate slots (slots 1 & 3 and 2 and 4) or 4 matching sticks in all four. So, to use dual channel, you need 2 matching sticks in slots 1 and 3, or 4 matching sticks in all four. You can mix and match memory sizes in this case, but they will not work in dual channel mode, only in single.

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#3 Nightspear

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Posted 09 June 2011 - 08:51 AM

Only thing that holds me back from installing that much ram is the limitation of my mobo. You might want to check what the max amount of ram that your mobo will handle is. No need to exceed that. In my mind it will just be a waste to to put 10g and only use 6g.

#4 Marth_01

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Posted 09 June 2011 - 11:22 PM

Ah, so would it be better to add one stick from this set?
http://www.newegg.com/Product/Product.aspx?Item=N82E16820145285

That would (I think) give me five identical sticks, which I could put four in and then be in dual-channel mode?

If someone else could compare
My 3 sticks of RAM: http://www.newegg.com/Product/Product.aspx?Item=N82E16820145286
To these 2 sticks: http://www.newegg.com/Product/Product.aspx?Item=N82E16820145285
And tell me if they are identical sticks, that would be great.

I believe they are all 7-8-7-20, 1.65V, DDR3, 1600, 240-pin, Corsair XMS3.

Thanks!

#5 the_patriot11

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Posted 12 June 2011 - 07:18 PM

Yes, those are identical sticks of ram, and should run in dual channel ok. Your motherboard should support up to either 16 or 32 gigs of ram, nearly every major brand of board with 4 ram slots such as gigabyte supports that much so as far as marths concern, you have more then enough room to upgrade with that board.

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Primary system: Motherboard: ASUS M4A89GTD PRO/USB3, Processor: AMD Phenom II x4 945, Memory: 16 gigs of Patriot G2 DDR3 1600, Video: AMD Sapphire Nitro R9 380, Storage: 1 WD 500 gig HD, 1 Hitachi 500 gig HD, and Power supply: Coolermaster 750 watt, OS: Windows 10 64 bit. 

Media Center: Motherboard: Gigabyte mp61p-S3, Processor: AMD Athlon 64 x2 6000+, Memory: 6 gigs Patriot DDR2 800, Video: Gigabyte GeForce GT730, Storage: 500 gig Hitachi, PSU: Seasonic M1211 620W full modular, OS: Windows 10.

If I don't reply within 24 hours of your reply, feel free to send me a pm.





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