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maviso5

macrumors regular
Original poster
Mar 25, 2009
159
2
Kent
Hi All,

My friend has a 20 inch iMac (model MB324LL/A) and he has bought 2x4GB SO-DIMMS from cosair. He has put them in and the mac wont recognise them, however it will recognise and boot up with 6GB (using 1 old chip and 1 new one) and he has tried swapping the chips about to make sure one is not faulty.

According to cruicial and Apple the max supported is 4GB but if it runs on 6GB can he get it to work on 8GB somehow?
 
Hi All,

My friend has a 20 inch iMac (model MB324LL/A) and he has bought 2x4GB SO-DIMMS from cosair. He has put them in and the mac wont recognise them, however it will recognise and boot up with 6GB (using 1 old chip and 1 new one) and he has tried swapping the chips about to make sure one is not faulty.

According to cruicial and Apple the max supported is 4GB but if it runs on 6GB can he get it to work on 8GB somehow?

Hardly, 6GB must be the max mem the iMac can take it. there's no way to force the iMac recognize the 8GB.
 
Hardly, 6GB must be the max mem the iMac can take it. there's no way to force the iMac recognize the 8GB.

well according to apple 4 is the max, so if it works on 6 i was wondering why not 8?
 
well according to apple 4 is the max, so if it works on 6 i was wondering why not 8?

If it's an early 2008 iMac the max memory will be the 6Gb. if it is an early 2009will be 8Gb. Which one of this two is?

For what you have written, if you did put the 8gb but only adressed 6Gb probably it's an early 2008. the early 2009 iMac should adress the all 8Gb.
 
its not that it doesn't address it, but it doesn't boot up with the full 8GB
 
well according to apple 4 is the max, so if it works on 6 i was wondering why not 8?

Beacuse it wont?

Im not sure I understand the issue?

It can take 6 gigs ram, max.
8 wont work. End of story.

Not sure why you would want to drop $450 for ram in that old iMac... if hes doing something that is exceeding his 6 gigs of ram now then he really needs to look into upgrading.

Might be able to get $700 for the iMac + Id sell 4 gig chip separate, $150? + $450 already spent for the Crucial ram = $1250 = new 21" iMac. Getting to 8 gigs of ram in that will only cost $100...
 
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