I have an iMac 1.25 GHz 20" which uses PC2700 DDR SDRAM modules. In addition to the factory-installed 256 Mb module, I have added a 512Mb module.
I would like to upgrade to the machine-rated 1GB of RAM maximum. Thus, I have few quick (& remedial) questions:
(1) Can the factory-installed 256 Mb module be replaced or is it permanently installed?
(2) If it is permanently installed, I will have to replace the user-installed 512Mb module. Since (I assume) that the next larger size of RAM would be 1GB, would this be a problem (since total installed RAM would be 1.25GB)?
(3) Which manufacturer(s) would you recommend for high-quality RAM modules?
Thank you for your help!
I would like to upgrade to the machine-rated 1GB of RAM maximum. Thus, I have few quick (& remedial) questions:
(1) Can the factory-installed 256 Mb module be replaced or is it permanently installed?
(2) If it is permanently installed, I will have to replace the user-installed 512Mb module. Since (I assume) that the next larger size of RAM would be 1GB, would this be a problem (since total installed RAM would be 1.25GB)?
(3) Which manufacturer(s) would you recommend for high-quality RAM modules?
Thank you for your help!