Memory compatibility question

Can I use memory from 2.5 v system in a 1.8v system:

DDR2 PC2-4200 . CL=4 . UNBUFFERED . NON-ECC . DDR2-533 . 1.8V

to be used in a system that now has:

DDR PC2700 . CL=2.5 . UNBUFFERED . NON-ECC . DDR333 . 2.5V

On Thu, 27 Jul 2006 05:28:03 -0400, in
comp.sys.ibm.pc.hardware.systems, "new" <new@mind_thespam_spring.com>
wrote:

>Can I use memory from 2.5 v system in a 1.8v system:
>
>DDR2 PC2-4200 . CL=4 . UNBUFFERED . NON-ECC . DDR2-533 . 1.8V
>
>to be used in a system that now has:
>
>DDR PC2700 . CL=2.5 . UNBUFFERED . NON-ECC . DDR333 . 2.5V

I doubt DDR and DDR2 are compatible...

"new" <new@mind_thespam_spring.com> wrote in message
news:EG%xg.164$...
> Can I use memory from 2.5 v system in a 1.8v system:
>
> DDR2 PC2-4200 . CL=4 . UNBUFFERED . NON-ECC . DDR2-533 . 1.8V
>
> to be used in a system that now has:
>
> DDR PC2700 . CL=2.5 . UNBUFFERED . NON-ECC . DDR333 . 2.5V
Definitely NO! DDR and DDR2 have different sockets in addition to the
voltage problem.

Not even close!!

"new" <new@mind_thespam_spring.com> wrote in message
news:EG%xg.164$...
> Can I use memory from 2.5 v system in a 1.8v system:
>
> DDR2 PC2-4200 . CL=4 . UNBUFFERED . NON-ECC . DDR2-533 . 1.8V
>
> to be used in a system that now has:
>
> DDR PC2700 . CL=2.5 . UNBUFFERED . NON-ECC . DDR333 . 2.5V
>
>