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    NP700Z7C won't turn on

    Discussion in 'Samsung' started by Falathar, Dec 27, 2012.

  1. Falathar

    Falathar Notebook Enthusiast

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    Hi,

    today I was trying to install a SSD drive and it didn't go exactly as I have expected - after gently removing the case, I've removed the main drive and put it in a caddy in place of optical drive and installed my new SDD drive (already cloned). Unfortunately, after assembling it back, laptop didn't react to the power button. So I've put back the ODD, hard disk and then checked all cables/connectors (couple of times). Laptop is still dead. Also no lights are on when the power cord is plugged in.
    Any ideas what can be still checked/done? Otherwise I have to send it to the service - after opening warranty is void, right?

    One lame question: case screws don't have to be in place for the laptop to boot?

    Regards,
    f.
     
  2. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    It isn't necessary to have the screws in for the computer to start. Disconnect the mains cable, disconnect the battery using a straightened paperclip though the hole in the bottom of the computer (next to a symbol that's a rectangle with an X in it) then hold down the power button for a minute. This should reset any CMOS issues. Then reconnect the mains power and try again.

    John
     
  3. Falathar

    Falathar Notebook Enthusiast

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    Thanks for reply.
    I've tried resetting CMOS before (hole next to subwoofer) and it didn't help.

    Regards,
     
  4. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    If there's no sign of power when you plug the PSU in then I wonder if the power board has got disconnected. Perhaps that's an area to recheck.

    John
     
  5. Falathar

    Falathar Notebook Enthusiast

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    All connections rechecked but which one exactly is the power board connector?
    As I removed only HDD and ODD I thought it might be something with power button cable which runs just under ODD but everything seems to be fine. I'm afraid that the mother board may be dead.
     
  6. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    I haven't a clue about which is the power board. You would need to try to follow the cables from the power socket and also the power button. I would most likely suspect a disturbed cable for which disconnect / reconnect is the only easy thing to try. Normally the power light comes on when you plug the PSU into the computer. This should happen irrespective of whether there is a problem with the power button cable.

    If your current investigations fail then you'll have to restore the hardware to the as-supplied condition and let Samsung find the problem.

    John
     
  7. Falathar

    Falathar Notebook Enthusiast

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    Thank you for your help but I will have to leave it for Samsung to check. Battery and power cord are connected to mother board at two different places, so it should be possible to boot the laptop with battery as power source - at least this is how it looks from the bottom part of the mother board. To check all connections I'd have to dissabled everything to investigate the other side, which could cause only more problems.

    Regards,
    f.
     
  8. slainte0317

    slainte0317 Notebook Enthusiast

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    Are you sure you reset CMOS? I had the same problem today. After putting the old drive back in, Laptop still would not boot (no screen, but power light would show). I found that a paperclip would not fit in the hold, and the CMOS button is way down there. After resetting the CMOS, and holding down the power button, it finally booted. Trying to do a win 7 install now on a SSD. Remember to change your bios settings if you have a win 8 machine. Need to turn off secure boot, and select the correct OS type for win 7 (it will tell you that in the right side bar).
     
  9. John Ratsey

    John Ratsey Moderately inquisitive Super Moderator

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    You've made a pertinent point here. The hole in the bottom disconnects the battery - it does not reset the CMOS by itself. That's what holding down the power button with the battery disconnected does. Reconnecting mains power automatically reconnects the battery.

    John
     
  10. slainte0317

    slainte0317 Notebook Enthusiast

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    Ah, interesting. Perhaps I just got lucky and did this in the correct order. Thanks for the insite.