Question
my hp pavilion dv4 screen wont turn on but the cap, and num lock blink
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Honor Student
lewisshigley
Posts: 2
Member Since: ‎02-15-2013
Message 21 of 41 (6,246 Views)

Re: my hp pavilion dv4 screen wont turn on but the cap, and num lock blink

I was on the phone with my online  computer service for at least an hour and they couldn't help but referred me to the HP service for which there is a charge.  I tried your method and it worked like a charm.  Many thanks!

Student
stoneyman00
Posts: 1
Member Since: ‎02-19-2013
Message 22 of 41 (6,175 Views)

Re: my hp pavilion dv4 screen wont turn on but the cap, and num lock blink

I am having the same issues, but my led's are blinking in a series of 8 times.....

 

 

Mike

Student
ArturoJS
Posts: 1
Member Since: ‎03-18-2013
Message 23 of 41 (5,923 Views)

Re: my hp pavilion dv4 screen wont turn on but the cap, and num lock blink

my cap and num lock dont blink when i turn the computer on what is the problem with that?

Honor Student
Question_laptop
Posts: 2
Member Since: ‎05-04-2013
Message 24 of 41 (5,522 Views)

Re: my hp pavilion dv4 screen wont turn on but the cap, and num lock blink

Hi David/Any one who can help,

 

I have HP pavillion dv4 2165x , does not turn on , fan seems to be running as i can hear the sound, LED on for power button, mute and volume, wifi button, power icon left bottom corner except other two buttons at left bottom corner. Num lock and caps lock blinks for 3 times continously with a break for 2-3 secs. What could be the possible error?

Professor
npw05001
Posts: 2,472
Member Since: ‎02-19-2013
Message 25 of 41 (5,502 Views)

Re: my hp pavilion dv4 screen wont turn on but the cap, and num lock blink

Hello Question_laptop,

 

I see that you are having start up problems with your HP computer. I have a couple of suggestions that may help with this issue.

 

Here is a link to some troubleshooting steps that may help with this issue. Also, the issue with the blinking LEDs is listed in this link. If you are getting three blinks and a pause then the issue is with the memory.

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Honor Student
situn17
Posts: 4
Member Since: ‎05-18-2013
Message 26 of 41 (5,387 Views)

Re: my hp pavilion dv4 screen wont turn on but the cap, and num lock blink

My dm4 1219tx has similar problem.When I press power button my caps key blinks in a pattern of 3 times.But after some time booting starts as normal.It doesn't happen always as sometime normal booting also occuers,but I want to knw what's d problem is as functionally my laptop is completely fine after it gets on.Also when i m trying to switch on the graphics card my laptop freezes.

Distinguished Professor
RedRose0528
Posts: 3,429
Member Since: ‎03-28-2012
Message 27 of 41 (5,331 Views)

Re: my hp pavilion dv4 screen wont turn on but the cap, and num lock blink

 

Hello Situn17,

 

I understand you’re stating when you turn the computer on sometimes you get no image and the caps lock light blinks 3 times, is that correct? I will be happy to help you.

 

Sometimes that blink code refers to a memory issue, I would like you to do a hard reset and run a memory test if possible.

 

Hard Reset

 

1.       Shut down the computer and remove all connections including the battery and AC adapter

2.       Press and hold the power button for 30 seconds

3.       Reinsert the battery and AC adapter once done.

 

Accessing BIOS

 

1.       When you turn the computer back on immediately tap the F10 key ( this key is time sensitive so you may have to shut down the computer and try it again)

2.       If successful it should lead you to the BIOS setup screen 

3.       Across the top you should see diagnostic, using your arrow keys toggle over to that section

4.       Run the memory test underneath diagnostic

 

Please respond with your results when possible.

 

Thanks 

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Honor Student
trialsguy
Posts: 2
Member Since: ‎06-28-2013
Message 28 of 41 (4,893 Views)

Re: my hp pavilion dv4 screen wont turn on but the cap, and num lock blink

Did you get it fixed? I had the same problem. I took the motherboard out and put in my oven at 385 degrees for 8 minutes. It now works! Search youtube and you will find more details and how to take you computer apart.

Student
Brubaker_UK
Posts: 1
Member Since: ‎07-08-2013
Message 29 of 41 (4,715 Views)

Re: my hp pavilion dv4 screen wont turn on but the cap, and num lock blink

Hi, 

 

Im an IT pro, and i normally resolve this issue like this, first you may encounter that even if you change the memory stick from one socket to another it dosent seem to work, okay, force the M/B BIOS to enter into recovery mode, Press the four arrow keys at once, turn on the laptop (keys are pressed) and release after. If this dosent work move the memory chip to a different bank (ie slot) and try again. Don't swap them, work with one memory chip at the time. (Hard to believe that both chips are gone) but not impossible. 

 

Basically you have a broken RAM memory chip. But not all cases are the  same so put that in mind. 

 

I hope it helps you guys.

Honor Student
hanser007
Posts: 2
Member Since: ‎08-08-2013
Message 30 of 41 (4,314 Views)

Re: my hp pavilion dv4 screen wont turn on but the cap, and num lock blink

I recently tried to upgrade my ram to the 4gb stick since you cannot leave both ram sticks in because they block one of the fans from cooling the hard drive.  I've tried both the slots with the 4gb stick and also tried going back to the original 2gb stick in both slots as well but I am getting the code for "graphics controller not functional".  Has anyone come up with something that works that doesn't involve spending a ton of money?  

I'm becoming very wary of purchasing HP notebooks because of these issues.  Would love to have some solutions from HP that didn't involve simply buying another notebook.  At this point it appears they are making them to last the period of your warranty and then they want you to replace them.

† The opinions expressed above are the personal opinions of the authors, not of HP. By using this site, you accept the Terms of Use and Rules of Participation