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Dv9000 power button does not work, display issues

Hey, hoping someone can keep me from using my pavillion dv9000 as a boat anchor. First thing that happened was I lost my USB's, figure it was a mobo problem. Tried reinsalling drivers, safe mode all that, they were done. Then I got the famous no boot (restart recycling every 10 seconds) and no display. Figure it fell into the same probleme everyone else had with these laptops. Mine is not covered by extended service enhancement. I bought a new mobo, made sure the heat sink was cleaned, used arctic silver 5 thermal paste and put it back together. Turned it on and it fired up. My HDD was extremely noisy after a couple of mins (past problem). I shut down and came back a half hour later to begin scrubbing the other HDD to do a clean install and it started up with no display. At this point I also noticed the power button does not work. I used the quick play keys to start it the first time and every time since but they will not force a shutdown, only the power button does. The lid switch ribbon is connected to the power button board, as well as the speakers (no sound but figured it was a missing MS driver, didn't look into it). I tried starting up without the hardware, switching RAM cards and slots like normal, made no difference. Has anyone else seen anything like this or ran into problems with the power button board. If so what kind of symptoms did you have. Thanks for any help

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  • seth veloso Jun 17, 2009

    yeah, I got one for 8 bucks. plus 110 for the board, think i'm spending too much for this thing. I was all set up, if I could get it to work, to be ruunning 30 to 40 degrees cooler, but now it won't run. LOL I couldn't sell this thing, I wouldn't feel right. I got it cheap anyway. Not real concerned about getting money out of it, just bugs me when I can't fix something.

  • seth veloso Jun 17, 2009

    The power button board should be here in a day or so but I don't think it is the whole problem. I found that removing the lid switch would keep the lcd on all the time. I removed it and it still didn't turn on. Now it's back to turn on and off every 10 seconds again. And unfortunately, I broke the clip that holds the ribbon in for the switch cover, so now I have no was to turn it on till the new power button boards gets here. Fun stuff

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I wanted to drop you a personal email after your help on my water heater problem but can't see how to do it here. So, I'll comment on your stated problem here.

I use notebook computers a lot, particularly the Tablet PC variety. I could tell you a lot of stories. I currently use a Lenovo X61T (even now) and it is pretty good but not without its problems.

Some types of notebooks are more prone to particular problems than others. I had two Sony VAIO's and they both ended up with power button problems, perhaps similar to yours. The solution was a power button replacement kit, as one other here suggested. It was not that expensive. I did have to be careful to get the right part. Pictures help.

My Lenovo has no less than three power buttons (counting the one on the docking station) and they all work well, but its weaknesses are screen freeze crashes, shutting off in my carrying case when it supposed to merely be asleep, and the cover latch, which I've replaced twice. But I am very, very hard on my notebook computers using them for several hours at several different locations (including on a train) each day and Lenovo on-site support (extra cost) has been quite good.

My suggestions would be to either power it off using the Start button and menu (or alternately do Alt-F4 after all the applications are shut down. You have some other options, too. In the control panel menus about power options, I think you can set it up so that closing it makes it power off (or one of the other options you choose).

Thanks again,
Bruce

Posted on Jun 20, 2009

  • bruce508
    bruce508 Jun 21, 2009

    I did manage to get the "smart controller" going again by changing its power connection from 120v AC to 24v AC (since it claimed to support both). Here's what I posted to another self-help forum:

    Whew...

    Here's what I just posted to the fix-it forum.



    (Next day)

    Just in the event that it might help someone, since all the symptoms seemed so much the same for this problem:



    I'm not taking any liability for anyone following my example, but I did
    manage to get the smart controller board fixed (or so it seems so
    far). For reasons others have mentioned, it seems almost certain that
    the problems are in the power supply part of the smart controller. I
    thought it was interesting that it ran on both 24v and 120v. Mine was
    running on 120v. It would run for awhile, chattering all the way, then
    finally fail with a flickering then blank display and with a faint bit
    of smoke off a white component marked 3900J.



    So I wondered whether if I ran it off 24v instead of 120v, whether that
    might take enough strain off the system or else force it into another
    mode where the original problem would not occur. To make the situation
    easier, 24v AC is available on a transformer attached to the main
    boiler. So I wired it into their instead of to the 120v AC line
    voltage (being careful that the cut 120v AC lines wouldn't touch
    anything). To my pleasant surprise, the display came on without any
    chattering sound at all. Now, about half an hour into this, there is
    hot water in the house.



    I'm not going to say this will solve everyone's problems who sees these
    symptoms, but if your system is running on 120v AC and you have the
    above symptoms, you might want to try running on 24v instead and see if
    it then works.


    ---

    I realize this is a computer question here, but I'm new to fixya and not sure how to add new comments to my own solved problem.


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The DV9000 is a great laptop, but only when it works...which if it does, usually isn't for long.

I'd recommend purchasing a power button board complete from eBay.

They're pretty expensive last time I checked. Everybody on eBay knows that this machine is a total lemon so they jack up the prices big time.

Once you get it working you might want to consider selling before it breaks again ;)

Posted on Jun 17, 2009

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To isolate the issue please try to boot the Notebook in Safemode.

Restart the Notebook and keep pressing F8 key and select Safe mode to boot.

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If your Notebook is booting into Safemode. Then try to restore the Notebook to factory settings. Before restoring the Notebook backup your data.

I hope this will work.
Thanks

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