Compaq presario cq56 115dx will not power on blinking lights, not a disk drive problem

I own two identical Compaq Presario CQ56 115-DX, and the one I use every day stopped powering on.  Shows blinking caps lock light and orange WIFI light does not turn blue to turn on.  The fan powers on, but the screen doesn't come on at all.  I tried hard resetting several times and it didn't work.  I swapped the hard drive of the malfunctioning CQ56 to the other one that was working normally, and it works OK normally.  No hard disk corruption or problems.  
Any idea how to fix this problem laptop?

Hey @rajpodn ,
Welcome to the HP Forums!
I understand you're looking for info on swapping out the CPU in your notebook. 
You will find everything you need here: Compaq Presario CQ56 Notebook PC - Maintenance and Service Guide. The instructions you need start on page 75. Keep in mind that the CPU itself may not be the issue, it could be the socket on the motherboard preventing the notebook from reading the CPU, so even replacing the CPU may not work, as you may need a replacement motherboard. I do not suggest replacing the motherboard as doing so requires HP Proprietary software to reinstall the Service-ID necessary for reinstalling Windows.
*Caution - If you do install the new CPU be careful with the thermal paste. A small pea sized amount should be more than enough. Put the paste in the exact center and carefully spread so there is a fine layer almost to the edge of the CPU. Remember that the heatsink will press very firmly onto the CPU and spread the paste more and you don't want any squishing out as this can cause electrical shorts if the paste has a high metal content.
The part you will want is: AMD V140 processor (2.3 GHz, 512-MB, L2 cache, 1066 MHz, 3.2 GT/s)—singlecore 25 W. The part number for this is: 616333-001.
You can order the CPU directly from HP here: HP Part Surfer, but you may be able to find it cheaper on sites like eBay, Amazon, or Newegg.
Hopefully this covers everything you're after!
Please click the "Kudos, Thumbs Up" at the bottom of this post if you want to say "Thanks" for helping!
Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
The Great Deku Tree
I work on behalf of HP.

Similar Messages

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    Is there anything I can do to repair this? Or is it a lost cause?

    You have a standard 1 yr warranty. Call HP.Choose your country here>> Contact HP
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  • Compaq Presario CQ56-115DX Problems

    Hello,
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    Hi,
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    http://h20239.www2.hp.com/techcenter/battery/battery_ts.htm
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    If you live in the US, contact HP Here.
    If you are in another part of the world, start Here.
    Regards,
    DP-K
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    ****Please mark Accept As Solution if it solves your problem****
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  • Compaq Presario CQ56-110US will not load up.

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    Hey @rajpodn ,
    Welcome to the HP Forums!
    I understand you're looking for info on swapping out the CPU in your notebook. 
    You will find everything you need here: Compaq Presario CQ56 Notebook PC - Maintenance and Service Guide. The instructions you need start on page 75. Keep in mind that the CPU itself may not be the issue, it could be the socket on the motherboard preventing the notebook from reading the CPU, so even replacing the CPU may not work, as you may need a replacement motherboard. I do not suggest replacing the motherboard as doing so requires HP Proprietary software to reinstall the Service-ID necessary for reinstalling Windows.
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    The part you will want is: AMD V140 processor (2.3 GHz, 512-MB, L2 cache, 1066 MHz, 3.2 GT/s)—singlecore 25 W. The part number for this is: 616333-001.
    You can order the CPU directly from HP here: HP Part Surfer, but you may be able to find it cheaper on sites like eBay, Amazon, or Newegg.
    Hopefully this covers everything you're after!
    Please click the "Kudos, Thumbs Up" at the bottom of this post if you want to say "Thanks" for helping!
    Please click "Accept as Solution" if you feel my post solved your issue, it will help others find the solution.
    The Great Deku Tree
    I work on behalf of HP.

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    I have the same problem and I think it started when I downloaded the SP2 for the Windows Vista. So probably it is not a problem of the laptop. I have an HP Pavilion dv9500 notebook PC.
    Message Edited by Yannis1980 on 10-13-2009 12:09 PM
    Message Edited by Yannis1980 on 10-13-2009 12:09 PM

  • No sound/Crac​kling noise on my Compaq Presario CQ56-115DX Notebook

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    Randy Rich
    This question was solved.
    View Solution.

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  • Compaq Presario CQ56, Caps Lock Blinks

    I have a Compaq Presairo CQ56-115DX.
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    Here is a document on the Blinking lights -
    http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01443366&cc=us&dlc=en&lc=en
    they contain a code:
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    LEDs blink 1 time
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    LEDs blink 3 times
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    I am an HP employee.
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  • Fan issue - Compaq Presario CQ56-106SA

    Product : Compaq Presario CQ56-106SA
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    Greetings all ,
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    Hi
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    "I work for HP."
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    Regards
    Manjunath

  • Compaq Presario CQ56 219-wm CPU compatible upgrade

    Hi I am a performance pc enthusast and I wanna upgrade the stock cpu celeron single core 900 cpu of my Compaq Presario CQ56 219-wm laptop.  
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  • Compaq presario cq56 keybaord problems (win7 x64)

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    Thanks.
    Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
    Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

  • My Compaq Presario CQ56

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    Hi
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    *Although I am an HP employee, I am speaking for myself and not for HP.
    ****Click the White Kudos star to say thanks****
    ****Please mark Accept As Solution if it solves your problem****
    Regards
    Manjunath
    Let us know how it goes!
    "I work for HP."
    ****Click the (purple thumbs up icon in the lower right corner of a post) to say thanks****
    ****Please mark Accept As Solution if it solves your problem****
    Regards
    Manjunath

  • Does a Compaq Presario CQ56-219WM have a webcam?

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    Thanks.
    Please click “Accept as Solution ” if you feel my post solved your issue, it will help others find the solution.
    Click the “Kudos, Thumbs Up" on the bottom to say “Thanks” for helping!

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