Question about Compaq Presario 900 /1500 Series EVO n1015v 15. inch LCD Display -285520-001 (285520001) CD-ROM Drive

1 Answer

Compaq Presario 900 Series PP2140 Power Up

My wife has Coppaq Presario 900 (Series PP2140). For a couple of months it sometimes refuses to power up with the power button.

She has been unplugging both the AC adapter and the battery for a minute, plugging them back and powering up. This procedure did not help today.

What is the cause? I can fix almost anything electronic but I have to know what the problem is and where to look.

Thanks in advance.

Posted by on

  • TonyBo Jan 25, 2008

    I have tried everything - the motherboard has a problem. I need to find out which integrated circuit the power switch goes to. Unfortunately, the power switch PCB trace goes on an inner layer and I cannot trace it.

    If I knew, which chip is the power controller, I could replace it.



1 Answer

Leave the battery out and try booting up on ac power only.

Posted on Jan 25, 2008


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I think you sould check your batteru first.
  • Remove your battery from lap.
  • Add power card to lap.
  • Make on without battery.
  • If it works, then you need to replace the battery or you can chek your lap with another battery, if it fixe your problem. Then you should replace the battery.

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on that model, most likely 16 bit..maybe 32 but that would be unusual for one that old

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can you go into BIOS? be sure you press the power button to know you are indeed starting up. if you see the bios, press F8 and check the settings there. change anything you want but be cautious though.

hope this helps.

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