Skip navigation

Fan running after harddrive installation

615 Views 12 Replies Latest reply: Mar 17, 2012 9:42 PM by greg h RSS
LaserJet5LApple Level 1 Level 1 (0 points)
Currently Being Moderated
Mar 6, 2012 3:13 AM


I have installed a new WD Scorpio Blue 320 GB EIDE harddrive to my PowerBookG4 1,67 GHz (Model 1106, the one for 1,5 and 1,67 GHz). Since then the fans are running always, nevertheless the temperature of the harddrive and the other systems are in the working bonderies.

One thing makes me wonder, there is a temperarure monitor programm and it has upper limits for all system parts, except the harddrive. Would I have to set a upper temperature limit for my new harddrive to stop the fan from running?

Best regards


PowerBookG4, Mac OS X (10.5.8), Laser Jet 5L
  • BGreg Level 6 Level 6 (17,500 points)
    Currently Being Moderated
    Mar 6, 2012 5:21 AM (in response to LaserJet5LApple)

    Have you reset your PMU?


    1. If the computer is on, turn it off.
    2. Disconnect the AC Adapter and remove the computer's battery.
    3. Press and hold down the power button for 5 seconds and then release the button.
    4. Reconnect the battery and AC Adapter.
    5. Press the Power button to restart the computer.
  • Allan Jones Level 7 Level 7 (29,575 points)
    Currently Being Moderated
    Mar 6, 2012 7:57 AM (in response to LaserJet5LApple)

    I'm hoping BGreg's advice gets you running properly.


    However, if the fans fail to detect a working sensor, they revert to a "safe mode" where they run at full speed. I suspect that, in replacing the drive, you inadvertently knocked loose a sensor wire or damaged a sensor.

  • BGreg Level 6 Level 6 (17,500 points)
    Currently Being Moderated
    Mar 6, 2012 2:05 PM (in response to LaserJet5LApple)

    You know, a DC-in card problem usually manifests itself in as a charging issue.  I can't recall a connection between the DC-in card and a zooming fan. Can't say there isn't something new here, but just doesn't ring a bell as related.


    Just out of curiousity, if you pull you battery out for 5 or 10 mins, then put it back in and restart the system, does the date warning come up that the initial date is set to 1960 or some time way in the past? If so, your internal PRAM battery is shot and should be replaced. I've seen a few odd issues happen when it was shot.


    I agree with Alan too to revisit if any sensor wires were knocked off base. Have you run the Apple hardware test to see if it picks up any hardware issues?

  • BGreg Level 6 Level 6 (17,500 points)
    Currently Being Moderated
    Mar 9, 2012 5:06 AM (in response to LaserJet5LApple)

    Change your PRAM battery if, after you remove the main battery for 10 mins and without the power adapter plugged in, when you put the battery back in and restart it, the system tells you it's date is set to a 19xx date.  That's a solid indicator that the PRAM battery needs replacing.

  • greg h Level 2 Level 2 (335 points)
    Currently Being Moderated
    Mar 17, 2012 4:03 PM (in response to LaserJet5LApple)

    LaserJet5LApple, is that the largest size internal that will fit in the PB G4?  I put in a 250gb a while back and I need more space and was hoping at least 500gb would fit. 


    Ultimately I need to get a new machine but don't want to spend the dough.




    WD Scorpio Blue Mobile Hard Drives
    320 GB, 100 MB/s, 8 MB Cache, 5400 RPM


    Item #Description Qty PriceAdd to Cart
    PSD41101 320GB Western Digital Scorpio EIDE 2.5" 12ms 5400rpm 8MB Buffer NoteBook DriveCall


  • BGreg Level 6 Level 6 (17,500 points)
    Currently Being Moderated
    Mar 17, 2012 7:30 PM (in response to greg h)

    320GB is the largest IDE drive you can install. Of course you can have a larger drive as an external drive.

  • greg h Level 2 Level 2 (335 points)
    Currently Being Moderated
    Mar 17, 2012 9:42 PM (in response to BGreg)

    Thanks flor the replies.  I'll check the prices on the 320 and see if it's worth the upgrade.  Ultimately I'm not doing much with this so I'd prefer to hold out on upgrading to a n entirely new machine.


    Sorry to hear that the fans are running constantly.  Can you tell if they are running at the high or low speed?  Mine kick into high speed sometimes and lately I've been using either washers to hold it off the table to help with the airflow.  I guess you could get a base with a built in fan to be %200 sure you're not overheating.



    @BGreg...I was hoping for a 500, the 320 isn't much bigger than what I have now.  The issuea isn't external storage, obviously that's esy to resolve!


More Like This

  • Retrieving data ...

Bookmarked By (0)


  • This solved my question - 10 points
  • This helped me - 5 points
This site contains user submitted content, comments and opinions and is for informational purposes only. Apple disclaims any and all liability for the acts, omissions and conduct of any third parties in connection with or related to your use of the site. All postings and use of the content on this site are subject to the Apple Support Communities Terms of Use.