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Lights Flash, but won't Power!

I have a Compaq C300. I tried to find one on this forum, but had no luck. It won't power up. I've tried new AC adapters. I've checked the DC output. I've replaced semi conductors on the motherboard....and still nothing.

The lights flash for a second, and the fan kicks on...and then it just dies.

I've heard that the LCD screen has a glitch that may cause this...but I've heard it was RAM related.

I really hope there is a cheaper alternative than replacing the motherboard.

It's a $450 PC. Paying $300+ seems silly, but I don't want to have to BUY another PC.

Anyone able to help me?

Posted by on

  • kmaguire Feb 09, 2008

    no brown spots that I can see.

    on the ones you've seen- do you have to replace the motherboard?

  • josephvss Sep 23, 2008

    I have 4 boards with same problem!

    I'll reply if I ever find a fix!



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Did you happen to notice any brown spots on the motherboard when you were replacing the conductors? There seems to be a short problem with these models. I've had 4 or 5 with the same trouble.
Let me know.

Posted on Feb 09, 2008

  • jim walenciak
    jim walenciak Feb 09, 2008

    yep. Try ebay. I wouldn't buy it from HP.

    Have you tried just 1 stick of memory, and applying pressure on the memory slot as if to push it into the board while booting?

    Might be worth a shot.

    Sorry I don't have better news but my experience has been new board.


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I have 4 boards with this problem! Nothing burned on board (physicaly). I'll post a rely if ever find a solution!

Posted on Sep 23, 2008


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