Laptop wont boot caps lock light blinking continuously

some time in startup it beep 25-30 times, after booting key board will not work.....

The 'blink' code indicates a memory error.
Here is the HP guide for troubleshooting this error.
Troubleshooting Blink Code Errors
Number of Blinks or BeepsLocation of Blinking LEDsComponent Being CheckedError Condition
Continuous glow
Battery power LED
Battery
The AC adapter is attached and the battery is charging, but does not yet have sufficient charge to power the notebook.
1
Caps Lock/Num Lock
CPU
CPU not functional
2
Caps Lock/Num Lock
BIOS
BIOS corruption failure
3
Caps Lock/Num Lock
Memory
Module error not functional
4
Caps Lock/Num Lock
Graphics
Graphics controller not functional
5
Caps Lock/Num Lock
System board
General system board failure
6
Caps Lock/Num Lock
BIOS
BIOS authentication failure
Continuous blink
AC power adapter LED
Power adapter
Insufficient power
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     Hi  , Thank you all for visiting the HP Support Forums and Welcome. It is a great site for information and questions. I have looked into your issue about your HP Pavilion dv6-7000sy Notebook and startup issues.  Here is a link to computer will not start.  I would start at the top and work my way down. Mine was fixed with reseating the HDD. Others have had it fixed with just reseating the Memory. Here is a video that shows you how to remove and reseat the HDD and memory. Please note remove any and all USB devices. Disconnect all non-essential devices, as these could cause some issues.  You could reset the BIOS with this document selecting the reloading the BIOS default settings. Which has helped others as it restores the default settings. If you should get the system started again, I would run the HP PC Hardware Diagnostics, It will tell you if something is failing. I hope something here helps any one of you fix the Notebook. Thanks.

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    -B
    QAZB wrote:
    hi everyone, 
    I have a hp Pavilion dm4-3011Tx with beats which is about 7 months old. Yesterday I woke it up from sleep and the keyboard lit up and the caps lock light would blink twice every few seconds. I held the power button down and rebooted it and when it started up the fans were running and the light was still blinking. I tried a hard reset and everything and several hours later it started again randomly...A short while later it happened again and this time I was unable to fix the problem. I have already read that it a Bios corruption but I don't know what that means. Can anyone help? Thanks. I have already tried doing a hard reset, taking the battery and the plug out, pressing the windows key and b while turning it on. Any help would be appreciated. 
    Thanks.

  • HP G42-475DX Black Screen when first turning on.. Caps Lock light blinking.. HELP!

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    Hi,
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    Also plese chack the following link:
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    Regards.
    BH
    **Click the KUDOS thumb up on the left to say 'Thanks'**
    Make it easier for other people to find solutions by marking a Reply 'Accept as Solution' if it solves your problem.

  • Envy M6 Won't Boot, Caps Lock Blinks Twice

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    Hi @J1mM ,
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    Here is a link to computer won't start for Windows 8.
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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!

  • Balnk scrren, blinking caps lock light

    dv6 laptop showing black display when turned on, caps lock light blinking. I tried unplugging the power cord, removed battery as suggested, however, problem persists.
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    View Solution.

    Hi Suzieg,
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    When you open the link go down to the section titled “ LED's near Caps Lock and Number Lock keys blink when starting notebook”.
    Please respond back with your results.
    Thanks 
    Clicking the White Kudos star on the left is a way to say Thanks!
    Clicking the 'Accept as Solution' button is a way to let others know which steps helped solve the problem!

  • Hp D7-4177nr pavilion-black-screen-startup-caps-lock-light-orange-light

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    Hi wasasa45 ,
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    I am waiting to hear back from you.
    !------------------- Please click the KUDOS star on the left to say 'Thanks'. Please mark 'Accept as Solution' if it answers/solves your problem. Thank you-----------------------------------------------------------------!
    I am an HP Employee.

  • Laptop won't start quickly but power wifi and caps lock light keeps blinking

    Hi, it has happened before too but rarely but nowadays it happens on daily purposes.
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    Hi @Nishant5788
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    Please click “Accept as Solution ” if you feel my post solved your issue.
    Click the “Kudos Thumbs Up" on the right to say “Thanks” for helping!
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    BHK6
    I work on behalf of HP

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    ****Click the White thumb to say thanks****
    ****Please mark Accept As Solution if it solves your problem****
    ****I don't work for HP****
    Microsoft MVP - Windows Experience

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    EduarddeKam wrote:
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