Compaq nx7400 bootup password unknown

It is a Compaq nx7400.  Son of the customer put a boot up password on this laptop and will not tell her mother what it is.  How can I erase this.  I tried what is obvious to remove the battery and cmos batter, food, allowing it to sit overnight.  Would really like to help this customer out, she uses this fact to his college work, powerful laptop fine (former company recycles), but the children of some people!

I can't access bios since the password appears immediately to market.  It gives 3 attempts, then comes up with a * symbol.

Would really appreciate someone's help on that.

Hello:

Unfortunately, there is nothing you can do.

Probably also active young the rigorous security in the BIOS setting, which prevents any attempt to clear the BIOS password.

This is why remove the CMOS and the main battery for 30 minutes, restart the laptop with the power adapter plugged, has not worked.

Other than convincing the kid that it is in his best interest to disclose the password, the laptop is useless.

The motherboard must be replaced so that the laptop to be usable again.

Tags: Notebooks

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