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Can different speed memory modules be mixed?

I want to add a 1 GB memory module to my 256 MB Dell Dimension 2400. (WinXP Home, SP3). The machine supports DDR-266 (PC2100) and DDR-333 (PC2700). I don?t know which one is currently in it. If I add a DDR-333 module will it work OK if the original module is a DDR-266? If not, is there a way to find out what kind of memory it has?

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go to crucial.com

In reply to: Can different speed memory modules be mixed?

or download cpu-z: http://www.cpuid.com/cpuz.php

you can mix ram, but it will run at the speed of the slowest stick. do not get ddr-400 since it can be problematic in PCs that don't explicitly support it.

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Here's a link for an oft recommended RAM vendor for older

In reply to: Can different speed memory modules be mixed?

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