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Repair guides for the variations of the Compaq Presario CQ62 laptop. This brand was manufactured from 1993 to 2013, and was owned by HP from 2002 to 2013.

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Why my pc powers up for a few seconds and then goes off before display

it does not reach the boot process and also does not display anything. If you press the power button it just turns on for not more than 10seconds and it goes off.

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Hi @sirmek ,

What is the model number of the laptop?

Does it do this with the charger connected and switched on?

Can you hear the fan start up?


my pc is an hp COMPAQ


Hi @sirmek ,

Yes but what is the model number? Look at the back of the laptop or on the underneath to find it on the label.

Also what about the other questions I asked?


the model is CQ62-a10SA

it does this both connected to the charger and switched on

the fan does not even start up


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Hi @sirmek ,

Try the following:

Switch off and disconnect the charger if it is connected.

Remove the battery from the laptop.

Press and hold the laptop Power button for 30 seconds to drain any residual power from the laptop.

Reconnect the charger to the laptop and switch it on. (leave the battery out at this stage).

Turn on the laptop and check what happens.

If it still doesn't turn on, there is a problem with the motherboard. (Has the laptop been dropped or gotten wet at all?)

If it does turn on, allow it to boot all the way to the Windows desktop. Allow the HDD activity to settle then shutdown the laptop in the normal manner.

When it has completely shutdown, switch off and disconnect the charger.

re insert the battery and reconnect the charger and switch it on.

Turn on the laptop, allow it to boot all the way to the Windows desktop. Allow the HDD activity to settle then check the charge status of the battery.

if it is charging allow it to fully charge before switching off and disconnecting the charger.

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I have tried it severally but no change

the computer does not even reach the boot process


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try changing the cmos battery or just simply taking it out for 5 seconds and put it back again

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Munyar sarà eternamente grato.
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