Laptop problem
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Laptop problem
22-02-2014 8:53 PM
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When I tried to power it on, the fans kicked in, and the screen went from black to a grey color indicating the backlight was on, but nothing else.
HDD light was flickering away happily. I shut it down, and tried again, this time it got to the screen where you can pick some option to get to the BIOS etc, and then the screen went black again.
Left it for 10mins, and came back. This time I got it to the login screen, but it started to give some graphics corruption, and then shut the screen down again. Again HDD light flickering as if working OK. Fans are on all the time at this point. Managed to get it to the BIOS screen and it seemed stable for a few mins, but fans still howling.
I shut it down, and I have left it for a week in my cupboard. Got it out again tonight, and it immediately booted up fine, and I got to the desktop, but then the fans have kicked in again, and graphics corruption started, and then the screen went black.
Switched it off, and on again, got to the BIOS, and it stays there OK, but fans spinning loudly. unfortunately no CPU temp in the BIOS.
i have pulled the HDD, and tested it, just in case, but my feeling is an overheating issue, as tonight after a couple of mins, it was throwing out red hot air. Before I go pulling it to bits, to clean the heatsinks etc, (need to do this as there is no panel on the underside to access CPU), this graphics corruption worries me. Could there be irreparable damage to the chips, making cleaning it out a waste of time???? Its an HP Pavilion DV6000
Re: Laptop problem
22-02-2014 9:02 PM
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The HP (and Dell) suffered from badly soldered graphics chipsets which failed over time.
Try with an external monitor to see if that helps but if it is hammering out hot air then there is something wrong there somewhere.
Re: Laptop problem
22-02-2014 9:09 PM
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I have been reading up on people reflowing the GPU on this laptop. Seems a waste of time doing this.. I have only ever reflowed a PS3, which is still working
I will pull it to bits tomorrow, and clean it out, and put new compound on the CPU. Does the GPU need compound as well here, as it appears to be held down with a separate heaksink, attached to the CPU one?
Re: Laptop problem
22-02-2014 9:37 PM
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Re: Laptop problem
22-02-2014 10:28 PM
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The Toshiba I'm using right now went all glitchy a long time ago. All distorted and coloured lines but was OK in VGA and Bios mode. Repair shops and the like said it's scrap and can't be repaired. Took it apart and I could see the GPU was a plugin board on the motherboard.
Bought one off ebay with a smashed screen, swapped the part and it was perfect. Even had the bonus of an additional memory stick from the scrapper.
Best thing was I resold the scrapper on ebay, to someone who wanted a different part, and got my money back as well.
Re: Laptop problem
23-02-2014 10:12 AM
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Re: Laptop problem
23-02-2014 12:30 PM
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Re: Laptop problem
23-02-2014 1:09 PM
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Shame it's not the older NC 6000 as I can get them apart with my eye's shut.
I have reflowed a couple of graphics chips on my own HP NC 6000's, you need a very fine point soldering iron & a magnifying glass to see what your doing.
Re: Laptop problem
23-02-2014 1:12 PM
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I suspect its overheated recently, and damaged the GPU. Unfortunately its probably uneconomical to repair.
I will see if it blinks any error codes to me, as colin mentioned.
Re: Laptop problem
23-02-2014 3:30 PM
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Re: Laptop problem
23-02-2014 4:04 PM
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12 months for consumer machines.
36 months for business machines.
The warranty length is normally on the white info sticker stuck on the bottom of a HP laptop.
Re: Laptop problem
23-02-2014 4:10 PM
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Re: Laptop problem
23-02-2014 11:18 PM
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