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Question

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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Answer
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?
Bob

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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.
Bob

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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.

http://www.dealtime.com/Intel-DG33BU-UATX-DDR2-800-GBE-LAN-VIIV-1333MHZ-CLASSIC-MOTHERBOARD/info?tab=specs
(The board is not from this dealer, but the same type.)

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

http://www.crucial.com/upgrade/Intel-memory/Intel+Motherboards/DG33BU-upgrades.html

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

Thanks.

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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.

http://www.intel.com/support/motherboards/desktop/dg33bu/sb/CS-026592.htm

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.
Bob

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