incorrect rams

[bbcmicro]

If I put the wrong type/speed of ram in a modern PC, will it damage the PC (I'm not really bothered if anything happens to teh rams)?

Simple question :) I have some lying around which I want to test out.

[dongfeng]

It will work, but at the lower speed. You won't be able to fit the wrong type of RAM as they are notched differently.

[carlsson]

And the PC will sync to the slowest memory, if you have several of different speeds installed?

[Vlad]

I know DDR will clock down to the lowest speed, I dunno about SD. I know RDRAM forces you to use the correct speed, but its pretty picky on what you do with it.