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Power up problem

My daughter's laptop is a Compaq Presario 300. When you press the power button, the fan comes on briefly, the power lights flash amber for 5 seconds then go out. The hard disk does not spin. I've tried all the different combinations of battery and power supply and held the power button down for 1 minute. The power supply is new and working (checked with volt meter). The screen does not light up. I checked all connections and they are good. If I know what component to replace I can get buy it and do it myself as I have fixed laptops before. I'm sure this is not an unusual problem for this model. Thanks for any help.

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  • garryb Mar 26, 2008

    I tried the different RAM configurations with no luck.

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You may have a failed power supply.
Try openning up and reseat all boards and check for extreme dust inside.
You can also check voltages at the power supply.

Posted on Mar 25, 2008

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If the power supply is new, Try to unplug the hard drive and power up the PC again just to see the problem still there.
If the failure still there after unplugging the HD, I would suggest to visually inspect the electrolytic capacitors for dry or bulging conditions.

Posted on Mar 25, 2008

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You need to reformat the drive for that. since there is nothing electric wrong. it must be your system right. can you enter to bios? if you cant even enter to bios, it might be your ram or the hd even.

kindly expound more

Posted on Mar 25, 2008

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Hi,

Did you try taking out and then putting back in the RAM?

Posted on Mar 25, 2008

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