does my imac support 3gb ram

Your iMac only supports PC2-5300 modules with the following > Memory Specifications

Lots of folks have had trouble with Kingston value RAM and your best bet for a good upgrade to 3GB is from > OWC

There is a slight advantage in installing a matching 4GB (2+2) kit instead of 3GB (1+2) even though it will only access 3GB, see > Understanding Intel Mac RAM - Mac Guides

You can trust OWC, they specialize in Macs and everything they sell has been tested to work.

If that is indeed the 5,2 iMac model, then it is lumped in with the Earlier 2006 4,1 and 4,2 iMac models that actually only support 2GB of RAM...?

see > iMac (Early 2006), iMac (Mid 2006), iMac (17-inch Late 2006 CD): Memory Specifications

Personally at this point, I'd call or chat with OWCs Tech Support and find out what configuration that they have tested in that model up to.

see > OWC Customer Service

Another clue that might also partly solve this dilemma, is to test the 2GB RAM that you have with 1 of the factory modules to see if it will see 2 plus the factory or only 2GB.

Hi.

I have a white iMac 20-inch (Late 2006) with Intel core2Duo 2.16GHZ Processor and I want to upgrade my memory. My system reports for memory these:

Memory Slots:

ECC: Disabled

BANK 0/DIMM0:

Size: 1 GB

Type: DDR2 SDRAM

Speed: 667 MHz

Status: OK

Manufacturer: 0xCE00000000000000

Part Number: 0x4D342037305432393533435A332D43453620

Serial Number: 0xF71B7551

BANK 1/DIMM1:

Size: 1 GB

Type: DDR2 SDRAM

Speed: 667 MHz

Status: OK

Manufacturer: 0xCE00000000000000

Part Number: 0x4D342037305432393533435A332D43453620

Serial Number: 0xF71B73E1

I have read a lot of things about this, but I was wondering which is the best choice for this upgrade.

My questions are:

-Can I install DDR2 SDRAM or SO-DIMM DDR2 or both?

(Here apple writes and copability for DDR3 SDRAM for my model???)

-I have read that iMacs with installed 4GB Memory (2GB+2GB )have better response and speed from these with 2GB+1GB Memory. Is that true?

-I have to looking for dual channel memory or not?

-Memory's speed must be 667MHZ or 800MHZ or both of them can be istalled to my machine (not at the same time)?

-My memory must have 200pin?Because SDRAM DDR2 have 240pin!

-And finally memory's voltage must be 1,5V or 1,8V?

Please can you help me?

Yes your Late 2006 model only supports 3GB, but can take 2x2 4GB of memory.

Mac's are picky and because your memory controller only runs a 667MHz, it is best to stick to the spec's.

see > iMac (Late 2006): Memory Specifications

• PC2-5300
• unbuffered
• nonparity
• 200-pin
• 667 MHz
• DDR2 SDRAM

den.thed wrote:

Yes your Late 2006 model only supports 3GB, but can take 2x2 4GB of memory.

Mac's are picky and because your memory controller only runs a 667MHz, it is best to stick to the spec's.

I am looking only for PC2-5300 Memory now.

Thank you.

I know these comments are old.. but I, too, just recently bought an iMac 5,2... I am piecing together that this was some sort of EDUCATIONAL version? and not what I needed (handicapped graphics)...

But.. I bought a 4gb Kit only to open the RAM DOOR to find that only ONE of the modules kicks out with the levers... Is that the way it's supposed to be? Or should I be able to replace both modules?

BTW, it does not see my second module at all...

Any advice welcome...

Yes that is the way that model is supposed to be. By the way you really should start your own thread.