RAM on newer iMac work on older iMac?

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2GHz Intel Core 2 Duo 4GB RAM
I recently replaced the RAM on my aluminum iMac from 1gb to 4gb.
Can I put the 1gb RAM in my older white iMac which has only 512mb RAM?
These are the exact 2 iMac's I have.(not my pic)
imac-2007-review-4.jpg
 

pigoo3

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2017 15" MBP, 16gig ram, 1TB SSD, OS 10.15
You didn't mention the exact specs. of your two iMacs so I could look up what memory each one uses...but generally speaking, memory (ram) is not backwards compatible.

From the looks of your 2 iMacs...the older one uses PC-5300 ram & the newer iMac uses PC-8500. This is just a guess, since I don't know the exact models you have.

- Nick
 
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2GHz Intel Core 2 Duo 4GB RAM
the white is 17in 1.83ghz intel core duo
the aluminum is 20in 2.0ghz intel core 2 duo
 

pigoo3

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the white is 17in 1.83ghz intel core duo
the aluminum is 20in 2.0ghz intel core 2 duo

Ahh...that info helps out quite a bit! Your 2 iMacs are a lot closer in age than I assumed.

They both use PC-5300 667mhz ram...so my guess is that the ram you removed from the newer iMac should work in the older iMac.

- Nick
 

don


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Similar question

Would using faster memory be of any value in my older IMac. Older imac is 20 in 2.1 gig and has 2 gig ram[not sure of speed] but removed 2 gig 800 meg ram from new Imac[installed 4gig] 2.8gig. Is this just a waste of time or would there be some value to this.
 

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