Are DDR and DDR2 Rams compatible ?

[Jason Stacy]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots ?
In other words do DDR rams fit physically into DDR2 ram slots ?

If yes: Do I have to switch an option (e.g. in BIOS) to tell the mainboard that only DDR Rams are
used or are they recognized automatically ?

Jason

 

[left_coast]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots ?
In other words do DDR rams fit physically into DDR2 ram slots ?

No.

 

[General Schvantzkoph]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots ?
In other words do DDR rams fit physically into DDR2 ram slots ?

If yes: Do I have to switch an option (e.g. in BIOS) to tell the mainboard that only DDR Rams are
used or are they recognized automatically ?

Jason

They aren't compatible, you'll need new DIMMs for your new board.

 

[Pete]

No they won't fit in the board.

 

[Arno Wagner]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots ?
In other words do DDR rams fit physically into DDR2 ram slots ?

If yes: Do I have to switch an option (e.g. in BIOS) to tell the
mainboard that only DDR Rams are used or are they recognized
automatically ?

No. Since memory manufacturers want to sell you new stuff,
they deliberately made no attempt at compatibility.

Arno

 

[CJT]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots ?
In other words do DDR rams fit physically into DDR2 ram slots ?

If yes: Do I have to switch an option (e.g. in BIOS) to tell the mainboard that only DDR Rams are
used or are they recognized automatically ?

Jason

No, the sockets have different numbers of pins.

 

[Chris Cox]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots ?
Nope

In other words do DDR rams fit physically into DDR2 ram slots ?

I don't think they do.

If yes: Do I have to switch an option (e.g. in BIOS) to tell the mainboard that only DDR Rams are
used or are they recognized automatically ?

Not sure if there is some kind of combo board out there... my guess is
no.

 

[John Lewis]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots ?
In other words do DDR rams fit physically into DDR2 ram slots ?

NO !!


John Lewis

 

[Roger Hamlett]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots
?
In other words do DDR rams fit physically into DDR2 ram slots ?

No. They are completely non-compatible. 240, versus 184 pins.

If yes: Do I have to switch an option (e.g. in BIOS) to tell the
mainboard that
only DDR Rams are used or are they recognized automatically ?

Doen't apply.

Best Wishes

 

[BR549]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots ?
In other words do DDR rams fit physically into DDR2 ram slots ?

If yes: Do I have to switch an option (e.g. in BIOS) to tell the mainboard
that only DDR Rams are
used or are they recognized automatically ?

Jason

No.

 

[Strutter1982]

Nope, you'll have to buy some DDR2.

 

[Markku Kolkka]

In other words do DDR rams fit physically into DDR2 ram slots

No.

 

[DaveW]

DDR RAM will NOT fit in DDR2 slots. They are incompatible.

 

[Robert Hancock]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots ?
In other words do DDR rams fit physically into DDR2 ram slots ?

Nope.

 

[CJT]

Nope.

I definitely see a consensus developing.

 

[Arno Wagner]

I definitely see a consensus developing.

Looks like it. Not too common here ;-)

Arno

 

[paulmd]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots ?
In other words do DDR rams fit physically into DDR2 ram slots ?

No, they don't. Not without breaking either the module or the slot.

 

[Peter D.]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots ?

No. Sorry.

 

[Mick Sitton]

Currently I have a mainboard with two DDR Ram modules:

512 MB PC2700 DDR 133Mhz
and
512 MB PC3200 DDR 166Mhz

Can I use these RAMs in a new mainboard which has (only) DDR2 ram slots ?
In other words do DDR rams fit physically into DDR2 ram slots ?

No you can't, the slots are physically different. Also, if i remember
correctly, DDR2 uses a lower voltage. (1.8V i think)

 

[Jesco Lincke]

No.

They aren't compatible, you'll need new DIMMs for your new board.

No they won't fit in the board.

No. Since memory manufacturers want to sell you new stuff,
they deliberately made no attempt at compatibility.

Arno

No, the sockets have different numbers of pins.

Not sure if there is some kind of combo board out there... my guess is
no.

NO !!


John Lewis

[...etc...]

Wouldn't you think the OP got the message by now? Or are you just
relishing this unusual moment of mutual accordance?

oO Jesco