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Does slower memory work with higher speed motherboard?

by Magic-wand / October 20, 2012 2:46 AM PDT

Some report it is OK while others, no.

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All Answers

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That's true (what you wrote.)
by R. Proffitt Forum moderator / October 20, 2012 3:00 AM PDT

While the standards say it will work, there are cases where it won't.

Is there a reason the machine and such details are not here?

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I just wanted to utilize some old stuff to build a computer
by Magic-wand / October 20, 2012 4:53 AM PDT

I have some DDR2 533Mhz RAMs and want to use them for a motherboard with 1333/1066/800 FSB. It definitely supports DDR2 677/800 Mhz as its spec states but if it supports 533Mhz?

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Hard to decipher your question.
by R. Proffitt Forum moderator / October 20, 2012 5:19 AM PDT

Given the question is hard to decipher, your choice to try it since I can't check the manual of the unknown board.

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I supposed all motherboards are created equal
by Magic-wand / October 20, 2012 6:28 AM PDT

But it seems to be "some motherboards are more equal than others."

The link below is the motherboard information.

(The board is not from this dealer, but the same type.)

By the way, I got some interesting information from Crucial.


Actually, the spec doesn't mention about 553Mhz. That probably means "not recommend if not unsupported." However, Crucial has another idea.


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I made a mistake
by Magic-wand / October 20, 2012 6:33 AM PDT

Crucial is correct.

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Wish Intel DG33BU was in the first post.
by R. Proffitt Forum moderator / October 20, 2012 6:45 AM PDT
In reply to: I made a mistake

Let's see if Intel documents any 533MHz operation now.


OK, I see WHY 533MHz is not going to be supported by ANYONE now. It's that onboard video. Since this will access the system memory at a very good clip, another lower than supported may fail.

I would not try it. But let's say you have it all then what's the worst that should happen is no display or odd boots.

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