I finally upgraded the RAM in my G4 MDD Powermac; it's originally an 867MHz DP model, upgraded to 1.25GHz DP with a bus speed modification.
I had a single 512MB stick of PC2700 RAM in the machine, and tried to max it out to 2GB with a pair of 1GB PC2700 sticks.
I've found, however, that both 1GB sticks are recognised as 512MB PC2600 sticks instead. Research suggests that the PC2600 report is just a quirk of some MDD models, but I was able to put my old 512MB stick in, and it reports exactly as the 1GB sticks do.
Do I have bad/mislabelled RAM? Or is there a 512MB per slot limit on the machine?
I was under the impression others had maxed RAM on such machines with two 1GB sticks, but perhaps that only works on the later MDD models?
It seems stable, and much happier in its current configuration, at least, and getting it up to 1.5GB is the max OS9 can handle anyway, to my recollection... but it's still odd, and I'm hoping someone can clarify what's happening for me, because I've not found anything about RAM being read/used at half its size, or any maximum per stick.
I had a single 512MB stick of PC2700 RAM in the machine, and tried to max it out to 2GB with a pair of 1GB PC2700 sticks.
I've found, however, that both 1GB sticks are recognised as 512MB PC2600 sticks instead. Research suggests that the PC2600 report is just a quirk of some MDD models, but I was able to put my old 512MB stick in, and it reports exactly as the 1GB sticks do.
Do I have bad/mislabelled RAM? Or is there a 512MB per slot limit on the machine?
I was under the impression others had maxed RAM on such machines with two 1GB sticks, but perhaps that only works on the later MDD models?
It seems stable, and much happier in its current configuration, at least, and getting it up to 1.5GB is the max OS9 can handle anyway, to my recollection... but it's still odd, and I'm hoping someone can clarify what's happening for me, because I've not found anything about RAM being read/used at half its size, or any maximum per stick.
