have serious issue macbook, keeps shutting down no reason @ all, after switching on again 5 10 minuets shuts down again. not multi tasking big applications , no on heat fan issues, had quick write post before shutdown again.
happening mac?
macbook 5.1 os x loepard 10.5.
istat pro give accurate readings of temps, fan speeds, etc.
intel processors used in macs designed automatically shut down prevent damage if overheat. cpu tjmax = 105c, gpu tjmax = 100c on i3, i5, i7 processors. (source: intel)
websites flash content, games , other multimedia apps such skype put higher demand on cpu/gpu, generating more heat. normal. if you're putting high demands on system, such gaming or other multimedia tasks, expect temps rise , fans spin accordingly. it's mac doing job maintain temps within normal range.
quite normal mac become extremely hot touch during intensive operations. aluminum body transfers heat more other materials used in computer casings, feel heat more. doesn't indicate it's overheating , not harm computer hot touch.
fans on when mac on, spinning @ minimum of 2000 rpm (for mbps) or 1800 rpm (for mbas, mbs , minis). spin faster needed keep temps @ safe level. if they're spinning without increased heat, try resetting smc. (pram/nvram has nothing these issues, resetting not help.)
intake , exhaust vents in of computer near hinge on mac notebooks. make sure vents remain unblocked allow computer perform @ best.
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