Upgrade iMac 7.1 ram DDR2 to DDR3

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Level 1

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Upgrade iMac 7.1 ram DDR2 to DDR3

Would you please help me, I dont know if I can use DDR3 ram (4GB) in my iMac 7.1 (Mid 2007), I have now installed 4GB DDR2 and I have a good chance to buy DDR3 ram at a good price,

I would appreciate your help very much

Damian
Galapagos Islands

iMac 7.1, Mac OS X (10.5.8), 4GB DDR2

Posted on Nov 2, 2010 8:52 AM

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Answer 1

rkaufmann87

Level 10

140,532 points

Nov 2, 2010 9:15 AM in response to dondamian

dondamian wrote:
Would you please help me, I dont know if I can use DDR3 ram (4GB) in my iMac 7.1 (Mid 2007), I have now installed 4GB DDR2 and I have a good chance to buy DDR3 ram at a good price,

DDR2 and DDR3 are 100% NOT compatible. However you may be able to upgrade your mid 2007 iMac to a total of 6GB. You will need to locate a RAM chip with the following specifications:

• Size: 4.0GB
• Technology: DDR2 SDRAM
• Pin Count: 200-pin
• Data Rate: 667 MT/s
• Speed: PC2-5300

Simply remove one of the RAM chips you have currently installed and replace with the new chip and it's done. I recently did this upgrade and put the new 4GB chip in the right bank. Here in the US you can find those chips from OWC (macsales.com) and I have seen them on eBay too.

Roger

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