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My thinkpad takes three tries to boot up, need help (lemmy.ml)
submitted 1 month ago by to c/thinkpad@lemmy.ml
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I have a thinkpad T440p, i have replaced the CMOS because it died on me, but now after a while of getting the new one my PC is behaving weirdly, it takes three tries to turn it on. First time i turn it on and it tries to start but shuts off; the second it tries but shuts off much quicker with a strange sound that seems like the speaker suddenly disconnecting and then it works flawlessly on the third try. Is the CMOS the problem here?

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[–] 3 points 1 month ago (7 children)

maybe something physical with the power button? try setting the bios option to auto boot when ac adapter connects, and try booting that way

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  • [–] [S] 2 points 1 month ago (6 children)

    Thanks for suggesting this, and yeah attaching it to the AC makes it turn on fine, probably a problem with the button

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  • [–] 3 points 1 month ago (3 children)

    it might be getting a charge with the ac and letting it boot up like normal -- i would try another battery in your shoes.

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  • [–] [S] 3 points 1 month ago (2 children)

    Yeah the battery is barely hanging on, i believe it's around 50-60%, i was about to replace it but i didn't know it could cause this. Removing the battery and turning it on on AC works fine. Are the kingsener fine?

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  • [–] 1 point 1 month ago* (last edited 1 month ago)

    Have also had such strange issues with worn out batteries on my Thinkpads. If it's consistently fine on AC, could be that the weak battery is struggling to output enough power for everything to spin up at once.

    I've purchased two Kingsener batteries and both have the same or greater capacity as the originals. They feel much more substantial than the cheaper no-name batteries. Only issues are that the one in my X230 is slightly loose and it doesn't play well with charge thresholds after installing coreboot, i.e. it falls out of calibration and randomly shuts off around 30% if I don't let it reach 100% every 2 weeks or so.

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  • [–] 1 point 1 month ago

    if having to plug it in before turning your laptop on is fine with you, then you could probably just leave it alone until the battery completely dies.

    i say this because -- back in the 1990's -- changing the battery sometimes caused problems like this and you might be better off letting this sleeping dog lie given the age of your laptop.

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    • [–] 3 points 1 month ago

    Weird. I have a dell workstation that does the same thing, except the first time all the fans rev up to full speed before abruptly shutting off. Then the second, it shuts off really quick. Then the third, it works flawlessly. I think it happens more often when the comptuer is unplugged/disconnected from power quickly. So maybe it's something to do with shutting down? That's a wild guess based on my problem that I definitely don't care enough to troubleshoot.

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    [–] 3 points 1 month ago (1 child)

    Have you reset the cmos to defaults after changing the battery? It's very rare, but they can act funky when the voltage droops, but doesn't dip enough for it to fully lose the contents.

    Also is that machine new enough to have an SOC reset hole? try holding that for 30 seconds if so. That fixes all sorts of issues that makes 0 science to me.

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