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HP550 laptop probably unfixable but might as well ask.

Discussion in 'Hardware' started by Loadertron, Oct 13, 2011.

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  1. Loadertron

    Loadertron Thread Starter

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    I have been handed an HP550 to try and fix but I suspect it is for the scrapheap.

    Problem description:
    Pressing the power button results in 4 seconds of (possible) boot up.
    Nothing appears on the screen.
    Fans start.
    I can hear the HDD initialize.
    If the power cable is plugged in there is a blue light immediately above it prior to power on, which then flashes amber while the power is on and turns blue then white as it powers down.
    Powering up without the power cable is the same but without the initial blue light.
    Removal of the battery makes no difference.

    Have tried reseating RAM, HDD and (for lack of better ideas) the wireless card. Also tried booting without the HDD and (again for lack of better ideas) the wireless card, with the same result and have tried swapping the RAM out.

    Does anyone know if this laptop has a diagnostic mode I can boot in to (e.g. holding Ctrl and pressing the power button is one that I've seen before)? Or does anyone know what the cause of this problem is?

    Thanks in advance for any suggestions.
     
  2. etaf

    etaf Moderator

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    try removing the battery and the power adapter and hold the power button on for at least 60seconds
     
  3. Loadertron

    Loadertron Thread Starter

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    Thanks for the suggestion etaf sadly it didn't work. I tried twice, holding the power button down for 90 seconds just to be sure with both the battery and power supply unplugged.

    Any more suggestions will be gratefully received.
     
  4. etaf

    etaf Moderator

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    can you try to get into the safemode , bios or recovery options

    as the PC starts try tapping

    F8
    or F10
    or F11

    do you have any recovery CDs ?
     
  5. Loadertron

    Loadertron Thread Starter

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    I have tried getting to bios without any joy and I don't have a recovery disk to hand... I'll be honest with you I'm not even sure what OS is on it, could be Vista, could be 7, and there is a small possibility that xp was put on it *sigh*.

    I suspect the mobo is fried.
    The bin is looking more and more tempting.
     
  6. etaf

    etaf Moderator

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    you could see if it boots up a CD like ubuntu - but that does assume the CD is set as the first boot option in the bios

    otherwise , i'm out of ideas

    ------------------------------------------------------------------------

    UBUNTU Virtual CD
    It may be possible to boot from another Operating System
    This will at least test the Hardware and also see if you can see the Harddrive and possibly get data off.

    If you have another PC with a cdwriter and spare CD
    goto http://www.ubuntu.com/ and download the ISO http://www.ubuntu.com/desktop/get-ubuntu/download

    YOu can also run from a USB device now - if the Machine supports booting off a USB Stick
    http://www.ubuntu.com/desktop/get-ubuntu/download

    full details are here (Note this is for version 9 - so the start up options are slightly different )
    http://www.howtogeek.com/howto/wind...backup-files-from-your-dead-windows-computer/

    click on the image "download ubuntu"
    Select a location
    then begin download
    Save the file onto your PC – remember where you saved it – so you can find it again to create the image bootable CD.

    You do NOT copy the ISO file onto a CD - you have to use the ISO to create a bootable CD
    The CD creator software you have on the PC may have an option to create an image from an ISO
    If not - use this free program http://www.imgburn.com/

    When the UBUNTU CD boots - you will see a screen - with Language on the left panel and two option images labelled

    == > Try ubuntu
    == > Install ubuntu

    You can try Ubuntu without making any changes to your computer, directly from this CD

    Use OPTION 1 "Try ubunto without any change to your computer" ONLY this option this will run from the CD and not install onto your harddrive - be careful, if you do install onto the PC - you will wipe the data and software OFF your hard drive.., so repeat only use option 1

    Now you should see a UBUNTU desktop
    This at least proves the main parts of the PC are working

    You may see your Harddrive on the desktop - if not have in look in the places on the tool bar at the top of the screen.

    If you can see your harddrive – see if you can find the your datafiles –
    XP look in “documents and settings” under the user name you had on the PC
    Vista/Windows 7 look in “user” under the user name you had on the PC

    Now if you have a USB flash drive or external harddrive – you should be able to copy your data from the harddrive onto the USB device

    ------------------------------------------------------------------------
     
  7. Loadertron

    Loadertron Thread Starter

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    Yeah I think I'm out of ideas too. I'll give the Ubuntu idea a go later but I'm not holding out much hope. Thank you for having a pop at it though, I posted this problem on several forums and you were the only person to even attempt it.

    If I ever do find a solution I'll post it here...
    Wish me luck.
     
  8. SUEOHIO

    SUEOHIO

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    If its the motherboard as you suspect depending on the age of the computer you have to decide if its worth replacing or not.When ive had the motherboards go they have been on old computers except for one and i didnt bother to replace them as it would of been more to fix than the computers were worth.Since its a laptop you can remove the hard drive which is easy to do. If theres anything on the hard drive you dont want to lose get a usb sata/ide connector to salvage whats on there. In the process when looking at whats on the drive you can pretty much tell what OS is on there by the program files, windows files, drivers, etc.Good luck to you.
     
  9. Loadertron

    Loadertron Thread Starter

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    I took the laptop apart in the end and found a component on the mobo had burnt out, so I've sent the computer to its final resting place in silicon heaven with all the calculators.

    Thanks once again for the suggestions.

    P.S. etaf I live just up the road from Surrey, next time I'm passing through I'll have to stop and buy you a beer :p
     
  10. etaf

    etaf Moderator

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    :)
     
  11. SUEOHIO

    SUEOHIO

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    Im sorry to hear that it was indeed the motherboard.If the hard drive is still good maybe you can save it for a spare as needed.I was going to mention before you send it to computer heaven there might be other usable parts on there such as the ram etc, that can be recycled.When ive had to play taps for my computers that have finally given up if my hard drives are good I keep them. Then the rest are recycled or salvaged by my computer friends in the business that know how to dispose of them properly so they dont end up in a landfill somewhere.
     
  12. Loadertron

    Loadertron Thread Starter

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    Don't worry SUEOHIO I salvaged everything from it. We have 6 more identical laptops here so I pillaged the RAM, the fan, the wireless card, the DVD ROM, the HDD, the monitor, the touch pad... you name it I swiped it :D
     
  13. SUEOHIO

    SUEOHIO

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    Thats good to hear.Im glad you were able to do that.
     
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