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HP Laptop is not booting up?

Posted on 2011-03-03
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Last Modified: 2012-05-11
Hi EEs,

I have one HP Pavillion DV6000 laptop which is not booting up since morning,
HP Pavillion DV6000
DV6281ea

I can not see any boot text & can not boot from DVD / cd.
I check : warranty also expired before 2.5 yrs back,
when i power on it screen remains black n i can not see the startup boot process at all,

Can any one advice the diagnose process to find out the prob so i should replace that particular part? like if the motherboard is broken down...i should place order for it...

Pls advice...
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Question by:dxbdxb2009
6 Comments
 
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by:Sajen_Jose
ID: 35025881
Hi,

When switching on the laptop do you see any power indicators coming up? There could be 3 major components that could be the cause of the problem.

1. Power Supply (Battery / Power Adapter)
   - Try connecting a known good power adapter and check if the laptop boots up.

2. LCD Display
- If you have an external monitor that you can connect to the Laptop and if you can see the display on the external monitor it could then be the Display unit.

- Try tapping the Caps Lock / Num Lock Key and check if they toggle if yes then it could be a display problem.

3. Motherboard
   - Try reseating the RAM and check if it helps.

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Expert Comment

by:mars-vie
ID: 35025896
Hello,
can you assure that the power supply is working - is there a light on the power supply?
Try removing the battery - perhaps this device (the charging mechanism) is the problem.
If power is OK, perhaps the graphics card is the problem - try an external monitor (many laptops have function keys on the keyboard to switch the graphics output to an external monitor).

Does the laptop make any noise when booting form a CD/DVD - you should hear the access to the CD/DVD.
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Expert Comment

by:davy999
ID: 35029496

• 1) TAKE OUT YOUR LAPTOP BATTERY
• 2) REMOVE YOUR AC ADAPTOR CORD, that's the wall power, remove it.
• 3) NOW HOLD DOWN THE POWER BUTTON FOR 30 SECONDS

That will drain any static electricity that has built up on your laptop system board and many times fixes the problem of a black screen. After the 30 seconds re-connect your laptop to the wall power and hit the power button normally and see if the laptop comes back up.

Replace your battery.


If you check with a extern monitor like the other two have suggested if that doent work it could be
your inverter or back light
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Expert Comment

by:JohnnyCanuck
ID: 35032000
The HP DV6000 series laptops are known to have problems with bad soldering on the motherboard at the GPU.  It is possible to reflow the solder if you are the adventurous type.  Otherwise the motherboard will have to be replaced.

Do-it-yourself fix:

http://www.youtube.com/watch?v=bnkQNmKauEc&feature=related

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Grant1842 earned 500 total points
ID: 35033479
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by:dxbdxb2009
ID: 35045176
Thanks for your replies,

i am sick now .... I will be back as soon as i feel well...

kindly bear with me...

thanks in advance...
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