up vote 0 down vote favorite
share [g+] share [fb]

My current laptop has 3GB (1x2GB, 1x1GB) of DDR2 RAM installed, and they run at 667MHz. I just ordered a new laptop, that comes with 2GB (2x1GB) of DDR3 RAM that runs at 1066MHz.

Is there any compatibility with the two? Can I install the 2GB stick in my old laptop in the new laptop, and have both DDR2/DDR3 and 667MHz/1066MHz operating together? Or should I buy a new RAM stick for my new laptop?

link|improve this question
feedback

2 Answers

up vote 2 down vote accepted

DDR2 and DDR3 are electrically and physically incompatible, sorry. You'll need to get new DDR3 SODIMMs if you want to upgrade.

On the plus side, I suppose, DDR3 happens to be the current best value for your money, as DDR2 production is ramping down due to it being "last-gen". OTOH, you could pawn off your DDR2 on Fleabay or something and quite possibly make up the difference. :)

link|improve this answer
Perfect answer to my question, thanks! I can probably sell both sticks from my old laptop. Unfortunately it won't be computing for much longer. Great idea, and thanks again! – teejmya Apr 29 '10 at 3:40
Hi @teejmya, if this answer was helpful, you should accept it by clicking on the check mark to the left of the answer. – dsolimano Apr 29 '10 at 4:49
It didn't let me at the time it was answered! Dylan answered my question really quickly. – teejmya Apr 30 '10 at 3:03
feedback
up vote 2 down vote

DDR2 and DDR3 use different timing protocols (and possibly different pin counts, not sure about that). Grab a new stick.

link|improve this answer
feedback

Your Answer

 
or
required, but never shown
discard

Not the answer you're looking for? Browse other questions tagged or ask your own question.