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upgraded eMac, now fan won't work

3394 Views 14 Replies Latest reply: Apr 30, 2008 8:09 PM by mywebstuff RSS
mywebstuff Calculating status...
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Apr 27, 2007 9:29 AM
Hello,

I just upgraded my son's eMac - put in 1GB RAM, Pioneer DVD-R drive and 320 GB hard drive.

All the upgrades work just fine (and he is very happy), but now the fan won't work. I've checked and double-checked the connections - there were two connections that I've unplugged and plugged in three times. The fan can spin if I flick it, so it is not impeded in any way.

Any ideas?

eMac   Mac OS X (10.4.9)  
  • Bill W Level 5 Level 5 (4,755 points)
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    Apr 27, 2007 12:36 PM (in response to mywebstuff)
    Did you check both ends of the cable to the fan?
    Beige G3 MT w/G4/466; B&W G3/400; 2 eMacs; Performa 6400; eMate 300, Mac OS X (10.3.8)
  • PhillyPhan Level 5 Level 5 (5,440 points)
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    Apr 27, 2007 5:00 PM (in response to mywebstuff)
    Do you know for a fact that the fan had operated before?
    1.25G eMac, Mac OS X (10.4.8), 10MP
  • roam Level 6 Level 6 (13,545 points)
    Currently Being Moderated
    Apr 27, 2007 5:59 PM (in response to mywebstuff)
    Hi mywebstuff

    Congratulations on successfully upgrading the drives and the RAM.
    There is little people can do about hardware on this Discussions site, except offer advice.
    So the problem is an electric component is not working; could be a toaster, a dishwasher or a fan in an eMac.
    Approach it as you might any similar electrical problem.
    Put a 12V (say from a battery) to the correct terminals on the fan. Does it spin?
    If it does the problem is the power supply end; if it doesn't the problem is with the fan.

    regards roam
    eMac G4 1Ghz ; iBook G4 800Mhz, Mac OS X (10.3.9)
  • PhillyPhan Level 5 Level 5 (5,440 points)
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    Apr 27, 2007 8:10 PM (in response to mywebstuff)
    I'm sorry but there isn't much else that I can suggest. From what you're saying, it's a real simple connection and the problem makes no sense. And, no, I don't believe in super-coincidence.
    1.25G eMac, Mac OS X (10.4.8), 10MP
  • Carl Bach Level 2 Level 2 (260 points)
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    May 5, 2007 11:26 PM (in response to mywebstuff)
    There are a couple of connectors right by the speakers, When you put the case back on they can be pulled off. One controls power to the fan. All you need to do is lift the case, with the bottom facing you, and I think it is on the left side. Two small connectors that plug into a board by the speaker.

    I'm assuming you didn't forget to plug it in up top when you reinserted the video.
    24" iMac 2.16 Intel Dual Core 2/2G RAM/500 G HD/Nvidia 7600GT256--iBook G4, Mac OS X (10.4.8)
  • Serge Isaacson Calculating status...
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    Jul 26, 2007 1:59 PM (in response to Carl Bach)
    Hey, I just installed a new optical drive and 320gb 7200rpm drive from the stock hardware that came with the emac. Everything went smoothly and things have been running fine until I noticed that the temp was at 181.4F today. My G4 MDD usually can get up to around 125-135F but that seems way too hot. I was positive I put the thing back together perfectly but now I'm questioning whether or not the fan is even running? Is there software to test this? Also, the drive I installed was thicker 3.5" than the one that was in there already but there was an appropriate spot to mount it so I didn't think it was a big deal. Please help. How can I confirm the fan is running or not...
    Powermac G4 MDD 1.25 GHZ
  • custom mini Level 2 Level 2 (330 points)
    Sorry to be blunt, but the fastest way to know if the fan is running is to turn the eMac round and look at the back of it when it's turned on the fan runs all the time the eMac is on.

    I second the check the connectors near the speakers if they are not clicked together they can come apart on assembly the same goes for the fan connector too.
    Custom Mac Mini (Intel), 2Ghz CPU - 2Gig Ram - 8x DVD-RW (internal)
  • Serge Isaacson Level 1 Level 1 (10 points)
    Currently Being Moderated
    Jul 26, 2007 7:49 PM (in response to custom mini)
    ok, i got it open. fan wasn't working, not sure which connection was the problem but i took them all out and put them back in again and now the fan works. i have no way of knowing how long the comp has been running with the fan not functioning. at the most 3 days. no clue what temp it was running at before. probably around 125f. now i'm worried the comp is fried. it can't locate any system software off the hard drive. seems to freeze at the happy mac folder icon, i'm trying to launch the apple hardware test cd but seems to be frozen on the loading screen. i'm gonna be in a major major bind if i fried my machine. any suggestions?
    Powermac G4 MDD 1.25 GHZ
  • Serge Isaacson Level 1 Level 1 (10 points)
    OK. Here's the latest. I zapped the PRAM and was able to boot up just fine. Ran diskwarrior again, everything checked out, ran extended AHT, everything checked out, installed temp monitors and system monitors to check the temperature, fan seems to run fine now, everything checks out. Shut down, now on boot up this morning had trouble starting up again. frozen gray screen, weird kernel panic gibberish, had to restart a lot, finally zapped the pram again and was able to get things running properly again. I'm downloading Applejack now, and am going to restart in singleuser mode and run it. I've just ran Onyx. I don't know. Once i'm in it runs great but there are these weird problems. I hope I didn't fry anything. AHT found nothing wrong.

    Message was edited by: Serge Isaacson1
    Powermac G4 MDD 1.25 GHZ
  • Serge Isaacson Level 1 Level 1 (10 points)
    yea, so i just checked and now the fan isn't working again. what do i do? i made sure all the connections were real tight and it was working fine and now it's not. it's a royal pain to open and shut this thing a bunch of times. helllllppppp.
    Powermac G4 MDD 1.25 GHZ
  • Serge Isaacson Level 1 Level 1 (10 points)
    ugh, i took it apart again, reconnected all the fan cables and now it won't work. how can i pinpoint what's causing the fan not to spin. it's not impeded in anyways and is a power issue i'm positive. i've taken the fan out altogether and was hoping to test hooking up a 9v battery to it to make sure it works independent of the computer but am not sure how to do this. anyone know? also, if someone could tell me which connector does one that would be great. there is the one down by the left speaker, the one that swings around the back right, the ground, and the one that floats on the left. if i could figure out which one does what i could maybe at least start with the power cable and make sure it's at least getting power.
    Powermac G4 MDD 1.25 GHZ

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