i have a imac g5 (ambient light sensor) 20" computer with 512mb already in it.
im thinking of upgrading to 1 gig.
i have 2 memory slots in the computer, 1 has already been taken up with the 512 chip.
should i buy another 512 and put it in the other slot, or buy a 1 gig chip and take the other one out, or should i buy a 1 gig chip and just place it in the other slot with the 512 mb.
i want to do it the right way so i can get the fastest speed out of my imac.
i appreciate the help