took out a ram chip from one machine, put it in the other. no more KP's</strong><hr></blockquote>
I did exactly the same thing with a PowerBook G4 and had the same exact results. Apparently some machines don't like some RAM chips at all, but others are OK with them...
Actually, it's not that certain Macs just don't like additional RAM. It's just that Macs are picky and require good quality RAM. Often, third party RAM may not be up to Apple's specs. If you purchase RAM from Apple-friendly places like OWC, they will probably guarantee the integrity of the RAM.
There was a ruccus about this about two years ago because a firmware update made some RAM modules stop working altogether in certain Macs. OWC, RamJet, and a few others immediately made promises to customers that they would replace any bad RAM for free.
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<strong>oh yeah, an update from my end.
took out a ram chip from one machine, put it in the other. no more KP's</strong><hr></blockquote>
I did exactly the same thing with a PowerBook G4 and had the same exact results. Apparently some machines don't like some RAM chips at all, but others are OK with them...
There was a ruccus about this about two years ago because a firmware update made some RAM modules stop working altogether in certain Macs. OWC, RamJet, and a few others immediately made promises to customers that they would replace any bad RAM for free.