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  1. #1
    High pitch noise

    Member Since
    Sep 22, 2009
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    23
    High pitch noise
    Hi when i got home from work about 20 mins ago booted up the mac and there is a high pitch noise coming from inside it changes pitch every now and then and then goes away for a few mins any idea what it could be and how to fix it ? thanks in advance.

    kris
    Kris

  2. #2
    High pitch noise
    Sur3Mac's Avatar
    Member Since
    Aug 03, 2009
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    Late 2011 MBP 13" i5/16GB RAM,Early 2007 MB white 13", 2x TV 3rd Gen, ᣦ
    Might be a dirty fan that caught a speck of dust.

    You could, if you're able to, open her up and blow some compressed air through it, while holding the fan, in two or three short bursts.

    Regards

  3. #3
    High pitch noise

    Member Since
    Sep 22, 2009
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    23
    Quote Originally Posted by Sur3Mac View Post
    Might be a dirty fan that caught a speck of dust.

    You could, if you're able to, open her up and blow some compressed air through it, while holding the fan, in two or three short bursts.

    Regards
    It's not dust it was all cleaned out when i did all the upgrades less than a week ago, i've been told it's the crt on it's way out
    Kris

  4. #4
    High pitch noise
    harryb2448's Avatar
    Member Since
    Nov 28, 2007
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    Sounds like flyback problem and the CRT is on the way out. Have a look at this link which has some suggestions:-

    Sometimes, my monitor will make a high-pitch sound that gives me a headache. How can I stop it? - Yahoo! Answers

  5. #5
    High pitch noise

    Member Since
    Sep 05, 2009
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    Athens, Greece
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    Mac Pro: 2 x Quad Core Xeon 3.0, 8 Gb RAM, 4TB Storage, 8800 GT
    I would say its the screen of the emac! My LCD does sometimes a high pitch noise.

  6. #6
    High pitch noise
    hughvane's Avatar
    Member Since
    May 18, 2008
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    It's almost certain to be the CRT display. My eMac too emits a high-pitched tone occasionally, which changes, or fades altogether, according to various display activity. I've simply learned to live with it, the display itself doesn't seem to be affected.

  7. #7
    High pitch noise

    Member Since
    Sep 22, 2009
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    23
    Quote Originally Posted by hughvane View Post
    It's almost certain to be the CRT display. My eMac too emits a high-pitched tone occasionally, which changes, or fades altogether, according to various display activity. I've simply learned to live with it, the display itself doesn't seem to be affected.

    Sounds like we have the same problem as long as im not going to tuen it on one day and the screen is black..Dont think i could go back to windows (YUK)
    Kris

  8. #8
    High pitch noise
    hughvane's Avatar
    Member Since
    May 18, 2008
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    Quote Originally Posted by kris.rhys View Post
    Sounds like we have the same problem as long as im not going to turn it on one day and the screen is black
    You're more likely to see it going gradually. Remember too that you can run an external monitor off your eMac. It might pay to consider that option sooner rather than after the (possible) dreaded event.

    I'm fortunate in that I know and deal with a guy near where I live who stores old Macs he gets very cheaply, free even, and strips them for parts. I can get a replacement CRT unit if needed, but so far (fingers and eyes crossed) this display keeps on keeping on. I shudder at the prospect of working inside an eMac to put in a replacement CRT display.

    Don't think i could go back to windows (YUK)
    Never! Doesn't bear thinking about.

  9. #9
    High pitch noise

    Member Since
    Sep 22, 2009
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    23
    i hope it dont die
    Kris

  10. #10
    High pitch noise

    Member Since
    Sep 22, 2009
    Posts
    23
    After installing os x 10.5 the high pitch noise has stopped how strange
    Kris

  11. #11
    High pitch noise
    harryb2448's Avatar
    Member Since
    Nov 28, 2007
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    iMac i5 2.7GHz, 16GB memory, OS 10.10.5
    Different resolution?

  12. #12
    High pitch noise

    Member Since
    Sep 22, 2009
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    Quote Originally Posted by harryb2448 View Post
    Different resolution?
    No it's still 1280 x 960 at 72Hz
    Kris

  13. #13
    High pitch noise
    harryb2448's Avatar
    Member Since
    Nov 28, 2007
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    Specs:
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  14. #14
    High pitch noise

    Member Since
    Sep 22, 2009
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    Quote Originally Posted by harryb2448 View Post


    I don't know am just glad it's sorted (for-now)
    Kris

  15. #15
    High pitch noise
    Chris H.'s Avatar
    Member Since
    Oct 03, 2009
    Location
    Albuquerque, New Mexico
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    Well when the display (or the internal components, which ever comes first) goes out, you shouldn't have to go back to Windows- never!! Just find a used Mac and give it love. Or you could buy a new one. Craigslist is better than Ebay because you deal with sellers locally.

    Adopt a Mac - Refurbished Apple Macintosh Computers, Upgrades, Accessories, Memory is another great place to find used Mac's, though, I'm now more skeptical about them now since I found a filed out serial number on the bottom of my Power Mac recently. They have a lot of G4, and on occasion G3 and G5 Power Mac's, unwanted eMac's and CRT iMac's. They also have the same PowerBook time after time, and old Apple hardware and software.
     iPad Air 2 - iOS 9 Beta
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