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...SSD (memory sticks, whatever you call them.)"SSD" is the acronym for "solid state drive," which is a hard drive that replaces spinning platters with flash drive technology; DIMMs are RAM chips. Both can be damaged by excessive heat.
Wow! Talk about caution... It's never occurred to me to run Apple Hardware Test other than when I thought I had an issue.
Happy to hear that your friend's issue is cleared up, but tell her to
not get too wrapped up in watching Activity Monitor; it can get to be a majorly annoyingly neurotic habit.
I like
MenuMeters, but pretty much don't even bother looking at it other than when things get sluggish and I get antsy.
