i have imac 8,1 , istat shows fans such:
optical drive: 4792 rpm
hard drive: 0 rpm
cpu: 1597 rpm
here temp readings (in f):
hd: mac hd: 112
cpu: 108
cpu heatsink: 104
airport card: 88
ambient: 65 (more 70)
gpu: 113
gpu diode: 133
gpu heatsink: 113
started few months ago. mac out of warranty. shortly after went out of warranty started having issues screen (wouldn't boot , had grey screen vertical bars) , apple had replace gpu. started having issues screen noticed 1 of fans running loud. thinking problem related, got gpu replaced. still have loud fan, i'm not sure how many fans particular machine has. istat shows 1 fan not running , maxed out. issue facing before go open computer? i'm looking replace hard drive here ssd , i'm thinking i'll take care of fan @ same time.
i've noticed people's fan problems being logic board. part can purchase myself somewhere? i've tried looking (some) haven't had luck. help.
i managed find more info logic board , decided if problem fans logic board, i'll have live fast fans. i've used every fan control app , can't slow down. seems odd 1 reports 0 rpm , other maxed out.
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