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Miscellaneous laptop discussions forum: Compaq Presario C500 Power Problem

by: lwplwp May 4, 2009 5:48 PM PDT

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Compaq Presario C500 Power Problem

by lwplwp - 5/4/09 5:48 PM

I have a Compaq Presario C500 laptop with Vista. Sometimes it will boot to the CMOS screen but it shows that the CMOS info has been reset like it would if the CMOS battery was dead. It will stay on for a few seconds and then lose power. The little power lightning bolt on the front will flash quickly. I have tried removing the battery and just hooked it up to the charger and when I do that the power button light flashes quickly. I tried another charger to make sure that wasn't the problem. ANY help you might offer will be greatly appreciated.


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presario c500

by deadman - 11/4/09 3:40 PM

In Reply to: Compaq Presario C500 Power Problem by lwplwp

I have same problem power light flickers with or with out battery , when i does boot up for all of two seconds it claims cmos using default settings then shuts off immediately - I will reply with any findings. But from other forums they claim motherboard fried .


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Just a thought.

by R. Proffitt Moderator - 11/4/09 4:26 PM

In Reply to: presario c500 by deadman

2 actually.

1. Reflow the solder on the power jack.
2. Install a new CMOS battery.

Good Luck!


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Compaq C500 won't boot flashing power light

by debwebdeb - 9/4/10 1:21 PM

In Reply to: Just a thought. by R. Proffitt Moderator

The C500 does not have a power jack soldered to the motherboard it is attached to a long cable that plugs into the board.


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Even better.

by R. Proffitt Moderator - 9/4/10 3:29 PM

In Reply to: Compaq C500 won't boot flashing power light by debwebdeb

Then you can reflow the solder work on that connection and if need be replace that cable.
Bob


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