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Re: XPS420 Ram features

I contacted Dell,but they have told me that I've already a coupon through it I don't pay freight expenses;so i can't have other sales.

But I've decided to buy them(I want to buy two 2gb modules) whatever. I've a question: they sell a module with a memory speed of 800mHz....but the other two memory modules on my pc are of 400mHz.

If you haven't understood I write you the 4 memory modules my computer will have:

1)2gb module of 800mHz

2)2gb module of 800mHz

3)1gb module of 400mHz

4)1gb module of 400mHz

My question is: Do they work together?

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