What is the maximum RAM possible
What is the maximum RAM possible in this iMac? What are the configuration of the RAM needed to go up to the max?
Model A1174 with 2 GHz Core Duo or Model A1207 with 2.16 or 2.33 GHz Core 2 Duo
These machines can be upgraded to a maximum of 3GB using a 2GB module plus a 1GB module.
Had to some research on this one.
The A1174 MA200LL 2.0 GHz takes a max of 2 GB of RAM
The A1207 MA589LL 2.16 GHz will max at 3 GB of RAM
So everyone was right and wrong on this answer.
I WANT TO FLAG THIS ONE TO SEE WHAT YA'LL AND MANAGEMENT THINK:
SHOULD THESE MACHINES BE SEGREGATED, AS THEY ARE DIFFERENT AND MAY CAUSE CONFUSION.
I can confirm this latest answer, I have upgraded several Core 2 Duo's (to include Macbook Pro & iMac) to 4 GB RAM. 2x 2GB SODIMM's with absolutely no issue. These specific boards are similar to the G31 chipset boards produced by many manufacturers. Although many manufacturers configured the systems with 3 GB's of memory (as the upgrade from 2 GB), that was never this chipsets maximum memory.
The specifications for this chipset allows a maximum of 4 GB system memory. Although there are many possible chipset options offered (especially during the transitional period from PPC to Intel Core 2), the Macintosh boards offered mostly soldered CPU/GPU configurations in place of ZIFF (Socket T/775).
This really doesn't matter much with the exception of the limitations with CPU upgrades. The RAM is a limitation of the chipset itself, having nothing to do with the CPU socket itself.
The MAC customized boards stayed with the same chipset through the change to the next generation of Intel CPU's (the I Core) then changed several times from 1150 through 2011 chipsets (most supporting > 8 GB DDR3). Although the 2011 chipset does max out at at somewhere north of 92 GB, I believe that outside of the MacPro this is not an option.
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