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Backward Compatible Ddr-2700?


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5 replies to this topic

#1 Illuminaughty

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Posted 27 January 2008 - 02:03 AM

Thank you in advance,

Have an old Dell 4500 w/356mb DDR-2100 and have a couple extra sticks of 356mb DDR-2700 from an even older HP.

Not looking to really spend a cent on this old thing (it's for a relative) but want it to at least be a bit faster.

I know (at least I think I do) that it will slow the 2700 down, but at least it'll have a bit more ram, right?
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#2 dc3

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Posted 27 January 2008 - 03:36 AM

It looks like the PC2700 should be compatible with the Dell. It has two expansion slots for RAM, and will take a maximum of 512MB in each slot. If you mix the PC2100 and the PC2700 the faster module will underclock to the slower module.

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#3 Illuminaughty

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Posted 27 January 2008 - 04:28 AM

Thanks dc,
great quote btw.
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#4 dc3

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Posted 27 January 2008 - 05:32 AM

Glad to be able to help. :thumbsup:

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#5 Illuminaughty

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Posted 29 January 2008 - 10:41 PM

Works like a charm,
Thanks again!
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#6 PaulGu

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Posted 17 February 2008 - 02:40 PM

I have the reverse problem to Illuminaughty's - I have some PC2100 memory left over after upgrading one machine and I'm wondering whether I can put it into another machine which came with some PC2700 and could do with more memory.
Will the PC2100 work in that situation? Are there any risks in doing this? If it does work will the PC2100 slow down the PC2700 and if so is the effect likely to be noticeable in ordinary (email/web-browsing etc) use?
Thanks in advance to anyone who can advise.




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