Question about Compaq Presario 2545US (DC970AABA) PC Notebook

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My Compaq Presario 2545 won't boot

I replaced the ac adaptor on the motherboard. It literally fell to pieces when I removed the soldier. Before this, the unit booted correctly it would not charge the battery or run with the ac cord. Now it charges and turns on with the battery and/or the cord but will not boot. It runs for a brief few seconds then the fan turns of and then nothing. No image or anything come on the screen. I can hear the dvd drive trying to run. It has a 4.2 Ghz processor, 512 MB or ram, and is running windows xp. How can I tell whether it needs another motherboard or just a bios update? I am stuck and can't figure out what to do next. Is installing another motherboard possible?

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  • stephdawg40 Jan 13, 2009

    Well, I have reseated the ram (took it out and put it back in) and it still would not boot. The dvd drive will not open, so I can't even put in the boot cd. Do you have any others suggestions. By the way thanks for the help.

  • stephdawg40 Jan 13, 2009

    I know that purchasing a computer would be easier. I really don't have the money to purchase another one. Using an external hard drive is definitely an option. One last question. What would it take to repair the BIOS? You have been very helpful and I am hoping that I don't have to take this thing apart again. I was able to get it back together with alot of headache. If I had the cash I would throw it as far as I could. Thanks again for all your help.


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Try reseating the RAM

Posted on Jan 10, 2009

  • Chris Hingee
    Chris Hingee Jan 13, 2009

    Usually when a computer won't boot up is because it has faulty RAM or a faulty CPU or BIOS ot some other system component.

    Replacing motherboard is a lot of work, if it were me I would put my money towards a new laptop, it would be faster and more powerful.

    You can take out the hard disk and put it into a USB hard drive enclosure and use it as an external drive.

  • Chris Hingee
    Chris Hingee Jan 13, 2009

    Repairing the BIOS is very difficult, its a surface mounted device and you would need special equipment to remove it and to solder it. Even I would not attempt it.

    Getting a replacement new motherboard would be a better option, a second hand one would not be my choice (you could get a dud one, bit hard to test on its own).

    For a cheaper option, if you don't need a portable computer, get a desktop computer (a 2nd hand one would be OK, at least you can test before you buy). These computers are easier to upgrade and maintain because nearly all parts/components are cheaper, they also are interchangeable and available from a wide variety of sources.


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