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Toshiba L555D Shuts down ONLY when booting from Disk/CD. Stays on in bios and f8 opti

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    Toshiba L555D Shuts down ONLY when booting from Disk/CD. Stays on in bios and f8 opti

    this laptop is shutting down while booting from disk or cd, right after the logo shows up starts loading and goes off.
    I have cleaned the board throughly. I added thermal paste. tried different chargers.. still same issue.
    When i press the F8 button, laptop stays on.
    When i press F2, laptop stays on in BIOS Mode.
    Please Help!!

    #2
    Re: Toshiba L555D Shuts down ONLY when booting from Disk/CD. Stays on in bios and f8

    Sounds like something connected to SATA is faulty/short.
    What's the motherboard model number ?

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      #3
      Re: Toshiba L555D Shuts down ONLY when booting from Disk/CD. Stays on in bios and f8

      Originally posted by diif View Post
      sounds like something connected to sata is faulty/short.
      What's the motherboard model number ?
      la-5332p

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        #4
        Re: Toshiba L555D Shuts down ONLY when booting from Disk/CD. Stays on in bios and f8

        There's a free schematic available.

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          #5
          Re: Toshiba L555D Shuts down ONLY when booting from Disk/CD. Stays on in bios and f8

          Originally posted by diif View Post
          There's a free schematic available.
          thanks, any ideas where i should be looking?

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            #6
            Re: Toshiba L555D Shuts down ONLY when booting from Disk/CD. Stays on in bios and f8

            Not sure because the symptoms are weird but I would say you have a defective northbridge. Many RS780M/RS880M are dying lately.
            OpenBoardView — https://github.com/OpenBoardView/OpenBoardView

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              #7
              Re: Toshiba L555D Shuts down ONLY when booting from Disk/CD. Stays on in bios and f8

              Originally posted by Blacktek View Post
              thanks, any ideas where i should be looking?
              Put la-5332p into Google and click i'm feeling lucky.

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                #8
                Re: Toshiba L555D Shuts down ONLY when booting from Disk/CD. Stays on in bios and f8

                Originally posted by piernov View Post
                Not sure because the symptoms are weird but I would say you have a defective northbridge. Many RS780M/RS880M are dying lately.
                thanks for the input my friend, i was thinking the same thing, i did a little reflow to this chip but it does the same thing.

                weird thing is that it stays on forever looking for bootable drives, but as soon as i put in a hard drive it show the windows boot logo then goes off.

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                  #9
                  Re: Toshiba L555D Shuts down ONLY when booting from Disk/CD. Stays on in bios and f8

                  Thanks guys, I Found the Culprid. I was using a 19v. 1.58A, so i switch to an HP 18.5v 6.5A, and its working without any issues.

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