*HP EliteBook 8760w Owners Lounge*

Discussion in 'HP Business Class Notebooks' started by wkuballa, May 24, 2011.

  1. flamebox

    flamebox Newbie

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  2. BabyBell

    BabyBell Notebook Enthusiast

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    Hi, my machine just died, only the fan runs for 5 seconds after turning it on and machine turns off. The top right hand leds light up while fan is running. Nothing on screen. If any key is pressed while powering on then the keyboard backlight turns on as well. I've tried re-seating everything - memory,drives,graphics card, replaced rtc battery and tried different adaptor but with no luck

    Any ideas on what issues cause this problem? Should I attempt to replace motherboard or graphics card first?

    Thanks
     
  3. mirage_bg

    mirage_bg Notebook Deity

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    Any key blinks?
     
  4. BabyBell

    BabyBell Notebook Enthusiast

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    Nope none at all.

    Although occasionally for a couple of months prior to this the boot disk wouldn't be detected after a hibernate or turn off. The number of boot options available on the boot screen would be a variable amount. Doing an immediate reboot it would always come up with all options and reboot just fine. Both hard disks always tested fine and never a problem once the laptop booted.
     
  5. mirage_bg

    mirage_bg Notebook Deity

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    This could be the motherboard then, unfortunately...
     
    Last edited: Dec 21, 2020
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  6. loopster

    loopster Notebook Enthusiast

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    Maybe the USB 3.0 or 2.0 board has failed. Leave them out and try booting.
     
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  7. mirage_bg

    mirage_bg Notebook Deity

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    Yes, @loopster has a point.
    I remember now I had this problem with one 8760W and it turned out to be a faulty USB 3.0 board.
     
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  8. BabyBell

    BabyBell Notebook Enthusiast

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    Thanks guys. I'll try removing the usb board this evening and see if that does the trick. Else I'll start looking for a motherboard. Unfortunately there seems to be a lack of them in the UK at the moment. Only options seem to be from China or USA
     
    Last edited: Dec 21, 2020
  9. BabyBell

    BabyBell Notebook Enthusiast

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    That seemed to do it, the machine is working again much like before but I'm at a loss on what to replace. Plus seeing lower temps on CPU & GPU than before with new thermal paste. Had to leave the old thermal pads on the chips surrounding the GPU as I hadn't known about it being used when I ordered the paste.

    I removed the usb 3 board and machine booted up. Put board back in and it still booted so reassembled machine completely and it is booting each time but can't find the boot disk on first attempt (this is as before). Message is "BootDevice Not Found Hard disk - (3F0)" Pressing Esc finds the all the disks and machine boots & works fine.

    However I'm now seeing a blink code but Caps blinks once then immediately followed by 4 blinks so not sure if that is 4 or 5 blinks.

    What board should I replace try replacing first?
     
  10. mirage_bg

    mirage_bg Notebook Deity

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    4 blinks is GPU, 5 - Motherboard
     
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