Memory upgrade for Dell D820

I have a new Dell Latitude D820 laptop running XP Home that I'm setting up for a customer.  When I go to crucial memory selector or the Dell site, I see that it generally comes with 512 DDR2 PC4200 memory.  It doesn't need matching pairs but of course it can benefit from them.  The upgrade specifies PC5300 memory.  I have a 2GB OCZ dual channel kit that's PC2 5400.  Is there any real difference between PC5300 and PC5400 and is there any reason these should not work in the D820?  
Also, these are the OCZ Value Sodimm series 5-5-5-15 part #OCZ26672048VSO-K.
Has anyone had experience with OCZ memory, especially this specific memory - and would you recommend it?
Thanks,
Al
Alan SilvermanOwnerAsked:
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pheidiusCommented:
http://forums.techpowerup.com/showthread.php?t=27477  From what i have read the only real difference is that 5400 is rated at running at 675 but it should downclock to 667 on most boards
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PUNKYCommented:
PC5300 = PC5400. The difference is that manufacturers round the spec differently. For example, 5336Mbit/s = ~5300 or ~5400 :o)

I bet you never know the differ at all. And they are both working on D820. Moreover, the OCZ and Crucial are good vendors.
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MarkCommented:
Here is a review of the OCZ PC5400 with some explanation
http://www.neoseeker.com/Articles/Hardware/Reviews/oczddr25400/
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MarkCommented:
Sorry that article was for a PC not a laptop module, but the speed naming is explained a bit.
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Gary CaseRetiredCommented:
Your OCZ dual-channel kit is fine.   Just to be sure, I checked the manual [http://support.dell.com/support/edocs/systems/latd820/en/ug/specs.htm#wp1057468 ] to confirm this system has a dual-channel controller [to be sure your comment "... It doesn't need matching pairs but of course it can benefit from them." was correct] ==> and although Dell doesn't say anything in the manual about dual channel, it does show that it uses an Intel 945 chipset ...so it DOES support dual channel operation :-)

I presume you're aware that this model has one memory module in the "usual" spot under a panel on the bottom of the laptop; and one module under the keyboard (you have to remove the keyboard to replace that one).
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Alan SilvermanOwnerAuthor Commented:
Gary,
Yes, I looked at the manual and saw that one is below the keyboard. I'm hoping it's not too much more difficult to replace the memory than when both are in the same place.  I've never actually had to replace any that are below a keyboard before.  I thought I'd just follow the steps on the online manual.  Are there any things I should look out for?
Thanks,
Al
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Gary CaseRetiredCommented:
It's very simple ... you just have to be careful when you remove the keyboard that you don't put excessive force on the ribbon cable that connects it => and be sure it's "laying" right when you replace the keyboard.
The manual shows it pretty clearly ... I'm sure you'll not have any problems.

Gotta go ... kick-off time :-)
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Alan SilvermanOwnerAuthor Commented:

That's all I need to know.  
Thanks,
Al  

Half time's about over.  Now I gotta go.
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Gary CaseRetiredCommented:
You're welcome.
... so much for a perfect season !!   (A shame ... but I must admit New England didn't look like a championship team tonight)
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Alan SilvermanOwnerAuthor Commented:
Yep.  But it was a great game, one they'll be talking about for years.  And since I'm a Detroit Lions fan, I'll take it.  Now where is Alex Karras when we need him?
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Gary CaseRetiredCommented:
It was indeed a great game.   I was somewhat neutral as to the outcome => I'd have liked to see a "perfect season" ... but 18-0 wasn't exactly shabby.   And I think it was neat that the Manning brothers won back-to-back Super Bowls :-)
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