[Ti] system instability

[Kynan Shook]

Pull the RAM, run DiskWarrior, and try your computer for a week or so.  
If you see a lot of errors with DiskWarrior, there's a good chance your 
memory is bad.  Other culprits can include the processor or cache, but 
those don't happen nearly as often on PowerBooks as, say, the PowerMac 
G5, because those components aren't as bleeding-edge.
Anyway, AHT passing your memory means jack squat - partly because a 
software test can't really do a good job, and partly because it seems 
like you might have a heat-related issue where the memory is fine until 
it gets to a certain temperature, or other intermittent conditions are 
satisfied.

silvo conticello <silvoc at tiscali.it> writes:
> I've recently noted an increase in system instability:
> sometimes applications start crashing one after the other until I get
> pissed off and restart the computer.
> Once I ask the restart usually it just log-out and re log-in.
> After a further restart command it finally restart.
>
> This has happened already 3-4 times in the past months. I haven't added
> RAM at this time (I've added 1Gb 6 months ago, few weeks ago I've
> re-tested it with the Apple Hardware Test CD).
> It might be that the instability follows hard use of the computer
> and/or a period with only 5Gb free on the HD (I don't remember if this
> has been a constant).