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DDR2 RAM for ASUS M3A78-EM

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December 19, 2011 2:06:48 PM

Hey guys!

I have an ASUS M3A78-EM motherboard with an AMD Phenom 9550 processor.
I wanted to upgrade my RAM to 4GB.
Will a 4GB DDR2 1066MHz RAM work on it? The manual says "Due to CPU limitation, DDR2 1066 is supported by AM2+ CPU for one DIMM per channel only". I don't know what this means and hence my doubt.
I was thinking of either a Corsair or Kingston 2 x 2GB 1066MHz RAM.

More about : ddr2 ram asus m3a78

a b } Memory
December 19, 2011 2:35:06 PM

That means you can't use more than 2 1066 sticks and be stable, for example you can't use 4x1gb 1066mhz sticks and expect it to be stable( that's officially, it usually can be made stable with some tweaking).

With 2x2gb you'll be fine.
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December 19, 2011 5:31:35 PM

Alright.. Is there a big difference between 800 and 1066?
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a b } Memory
December 19, 2011 5:59:26 PM

There's a substantial difference at least, not huge, but noticeable.
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December 20, 2011 4:39:05 PM

The AMD Phenom 9550 is an AM2+ processor right? So I should not have any problem with the 1066MHz 4GB RAM?
And which vendor should i go for? Corsair or Kingston?
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a b } Memory
December 20, 2011 5:24:35 PM

I usually trust corsair more, but not that knigston is bad or anything, Either should work well, get the one that has the better review ratings.
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!