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Can a budgling cap cause a hard drive to go bad?

Discussion in 'TiVo Series3 HDTV DVRs' started by buscuitboy, Jun 24, 2013.

  1. buscuitboy

    buscuitboy Member

    740
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    Aug 8, 2005
    Atlanta area
    I have a lifetime Series 3 (OLED) that started the dreaded reboot loop. I opened up the case and it indeed has a budging cap. Now, I had a spare 500GB WD drive that I put in it a few months ago. Before putting the S3 image on it and sticking it in the TiVo, I ran an extended test on it and all came back good. It has been working flawlessly for months until recently

    I have another Series 3 (OLED) that had this reboot issue a while back as well. While it had a bulging cap & I had it fixed by a local shop, this didn't fix its reboot problem. Rather, a totally new hard drive is what ultimately fixed it.

    While I will get the cap fixed either way on this other S3 as it can't hurt, I am just wondering if this bad cap can cause a hard drive to go bad over time. Or does one really have NOTHING to do with the other in terms of failure. I also realize that since this 500GB WD drive is not totally new, there is chance it could have just failed as well. Just curious on this.
     
  2. ggieseke

    ggieseke Well-Known Member

    4,195
    57
    May 30, 2008
    I guess low voltage and/or excessive ripple could cause premature drive failure, but I've never really heard of it. On TiVos they usually won't boot at all if there's not enough juice to spin up properly.

    P.S. Is a budgling cap like a fledgling bird? :D
     
  3. unitron

    unitron Active Member

    16,435
    12
    Apr 28, 2006
    semi-coastal NC
    A flaky power supply isn't "good" for a hard drive, but it's much more likely to scramble some of the software and files on the drive than harm the drive itself physically.
     
  4. steve614

    steve614 what ru lookin at?

    10,722
    0
    May 1, 2006
    Dallas, TX
    I don't know, but I think a flaky power supply would damage components on the hard drive's PCB before it would affect anything stored on the media.
     
  5. jmbach

    jmbach der Neuerer

    1,828
    58
    Jan 1, 2009
    Really depends. Overvoltage issues will most likely cause premature failure of components while under voltage may cause certain functions not to operate to specs or not at all.
     

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