DDR3 MBP Ram in DDR2 iMac?!

[olisones]

Hi,

I have some spare 1gb sticks (DDR3, 1066 CL7) that I swapped out of a current 13" Macbook Pro. I also have a 20" C2D 2.0ghz iMac that needs a boost.

Will the RAM from the MBP work in the iMac?!

Thanks!

 

[Umbongo]

Nope.

 

[Sun Baked]

Works about as well as using a GE gas burner to fix your electric stove.

 

[stridemat]

The RAM is totally different, no hope in working.

 

[J&JPolangin]

DDR3 RAM has 204 pins

DDR2 RAM has 200 pins

= they won't fix

 

[olisones]

Thanks for everyone's help!

 

[pukifloyd]

DDR3 RAM has 204 pins

DDR2 RAM has 200 pins

= they won't fix

unless he breaks 4 pins

 

[Sun Baked]

unless he breaks 4 pins

Duct tape ... makes anything fit better.

 

[jav6454]

Hi,

I have some spare 1gb sticks (DDR3, 1066 CL7) that I swapped out of a current 13" Macbook Pro. I also have a 20" C2D 2.0ghz iMac that needs a boost.

Will the RAM from the MBP work in the iMac?!

Thanks!

DDR3 is not backwards compatible.

 

[bejeff]

After reading this, I'm also assuiming DDR2 is not compatible with just plain DDR?

 

[screensaver400]

After reading this, I'm also assuiming DDR2 is not compatible with just plain DDR?

How'd ya guess?

 

[zbasarab]

thanks for the thread OP, i needed a good laugh

 

[J&JPolangin]

DDR3 is not backwards compatible.

...it is, as long as the physical chip uses the same form factor (ie 204 - 204 pins)...

After reading this, I'm also assuiming DDR2 is not compatible with just plain DDR?

...typically, the BIOS won't recognize the DDR2 if your logic board is setup for DDR...(you also need to make sure they are the same form factor, number of pins, etc...)...

For example my old Toshiba 1905-s303 uses DDR RAM PC2100 and I can use DDR RAM PC2700 that does work with the older, slower stick of RAM I left in the machine (only one slot was easily to get to with out taking the whole laptop apart and I didn't want to bother with an 8 year old laptop as I gained more putting in a 5400 RPM HDD to replace the 4200 RPM HDD it came with)...

 

[ayeying]

...it is, as long as the physical chip uses the same form factor (ie 204 - 204 pins)...

Not true. If the SPD is programmed differently, it won't be recognized.

 

[alphaod]

After reading this, I'm also assuiming DDR2 is not compatible with just plain DDR?

It wouldn't even slot in as the notch is in a different place.