Are DDR and DDR2 SODIMMs interchangeable?

[yuip]

Good afternoon all,

I'm trying to upgrade my toshiba laptop that came with 512 megs of RAM.
This laptop uses DDR333 SODIMMs which are roughly 30% more expensive
than equivalent DDR2 sticks. The question is, are DDR2 chips backwards
compatible? The DDR and DDR2 SODIMMs both have 200 pins so I'm hopeful.
I couldn't find anything conclusive though.

I'd appreciate any advice.


Thanks.

 

[Pen]

Good afternoon all,

I'm trying to upgrade my toshiba laptop that came with 512
megs of RAM.
This laptop uses DDR333 SODIMMs which are roughly 30% more
expensive
than equivalent DDR2 sticks. The question is, are DDR2
chips backwards
compatible? The DDR and DDR2 SODIMMs both have 200 pins so
I'm hopeful.
I couldn't find anything conclusive though.

I'd appreciate any advice.


Thanks.

No. Read all about it.
http://download.micron.com/pdf/pubs/designline/dl3Q03.pdf
The short version;
http://www.overclockercafe.com/Articles/DDR_vs_DDR2/