Using Ram pulled from new iMac in an old iMac?

Question

My parents have an iMac circa 2007. Documentation says that this model should use this type of RAM:

Memory: DDR2 PC2-5300 Memory Type: DDR2 PC2-5300, DDR2 (non-ECC) Maximum Memory: 4GB

I've got a couple of 2GB RAM chips lying around that I just pulled from my "new" iMac. The info on the chips reads:

2GB 1Rx8 PC3

Will these work in my parent's iMac, or am I just asking for trouble?

Thanks!

Apple's support knowledge base is probably the most definitive source for answers for this question.

Shane Hsu · Answer 1 · 2012-11-23 16:23:31Z

up vote 5 down vote

No.

Those new iMacs are using DDR3, and it won't even fit.

DDR2 are pretty cheap right now, you can get some off the Internet.

answered Nov 23 '12 at 16:23

Shane Hsu
756118

Thanks for your help -- figured as much. – alex cutter Nov 23 '12 at 16:25

You can read more about DDR2/3 on Wikipedia! – Shane Hsu Nov 23 '12 at 16:40

2

And Other World Computing has your back for legacy upgrades. – Dan J Nov 23 '12 at 17:08

1 Answer