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I have an HP Pavilion dv2000 laptop with me and it won't boot up. I hook it up to the charger and press the power button and it's completely unresponsive. I've tried holding the power button down but it still won't boot.

Does anyone know what could be wrong with it, or how to go about figuring out the problem? I was thinking maybe the battery is dead. In that case can it be replaced? How much does a new battery generally cost?

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    – squircle
    Feb 6, 2011 at 17:37
  • Battery costs ~80€. Laptop should boot with charger, even if battery is removed or not working. If warranty is still valid, you should take your laptop to warranty service.
    – Olli
    Feb 6, 2011 at 17:43
  • The computer has no warranty. But that's good to know - that the laptop should boot regardless of the battery when it's hooked up to the charger. So if it's not the battery, what do you think it can be?
    – ktm5124
    Feb 6, 2011 at 17:46
  • Probably charging circuit (you can't change it by yourself). Is your charger working at all? If you have voltage meter, it is easy to measure. Otherwise it's impossible to say.
    – Olli
    Feb 6, 2011 at 18:06

2 Answers 2

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The battery is unlikely to be the problem. All laptops I know work fine without the battery. Some laptops may have trouble running with a defective battery - the battery may claim to be ok but fail to deliver enough power - but even that is unlikely.

Most probably, either the power supply is broken, or the laptop itself (probably something on the main board, or maybe even the power button ;-)).

You can try to check the power supply, by either switching in a known good one (if you can get one, e.g. from a friend or colleague), or by measuring its voltage (after looking up the expected voltage). If that is not it, the laptop is defective and has to be repaired.

The difficulty of repairing a laptop ranges from easy to almost impossible, this depends very much on damage and model. At any rate, unless you have experience with electronics repairs, it's unlikely you'll be able to do anything. Try finding a small shop that will give you a quote for a repair at a low price - or just sell the laptop as defective on ebay or similar, you may still get a few dozen $ or € for it.

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Have you tried unplugging from the power supply and then removing the battery for around 30 seconds. If that fails, it's likely the power supply that's failed or an issue with the laptop system board or power circuit. In that case you probably want to take it to a repair shop for an estimate.

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