Question about HP Pavilion dv9000z Notebook

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Does replacing the motherboard affect the files i had saved?

I have a hp dv9000 series notebook. when i press the power button, the blue lights come on but there is no display. using an external monitor, ic an see that it's trying to do a startup repair because windows won't start normally. after trying several times it still tells me they can't repair it and to report it. anyway, i searched online and apparently this is a common problem amongst pavillion owners - something about the motherboard being fried.

i was wondering if this** is what normally happens when there's something wrong with the motherboard? (**this as in the comp still sorta working/trying to repair or restore system, compared to the comp not responding at all/completely dead)

also, if i do get my motherbaord replaced/comp fixed, will i still have all the old files that i had saved previously?

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Yea when u replace your motherboard u will still be able to get your old files, it will not disturb your previous data. coz your data store at Hard Drive n you are goint to change only your m-Board...
so good luck

Posted on Jun 20, 2009

  • Shafky Khan Jun 20, 2009

    yea when u replace your motherboard u will still be able to get your old files, it will not disturb your previous data. coz your data store at Hard Drive n you are goint to change only your m-Board...

    so good luck




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Laptop power LED switches on but switches off again

Yes, but it involves board level component replacement....

An example of what I believe the problem may be, and using the HP Pavilion dv6000 series, and Pavilion dv9000 series of Notebook PC's;

Compaq 615 Notebook PC and Compaq 610 Notebook PC - Maintenance and Service Guide

Wear an ESD wrist strap, and have it's alligator clip attached to a good ground source.

Or replace motherboard at a $100 on up.
(NOT including labor. Just price of motherboard)

Or it may be something as simple as the laptop is dirty inside, plus the Thermal Paste on the Processor has dried up; and Thermal Pad on graphics chipset has dried up. (Cannot be reused anyway)

For additional questions please post in a Comment

Apr 30, 2013 | Computers & Internet

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Link to the Service Manual, Donald,

That Sony VAIO VGN-N38e, is part of the Sony VAIO VGN-N series of Notebook PC's.

Scroll down to the 8th line that begins with the blue -> VGN-A
Scroll across, and click on the blue -> VGN-N

PDF file. and the computer you are using now has Adobe Reader on it, which uses PDF files.
May take up to 30 seconds after you click on the file name (VGN-N), before the first page comes up.
The file is downloading in the background.

That is the Service Manual. It doesn't have board level component replacement.

Is there a board level component that you feel needs replaced?
What are the symptoms of the laptop?

Power issues, if not the AC adapter, (Charger), or DC Power Jack; are related to the Power MOSFET's on the power circuit of the motherboard; and may also have bad MLCC's in that circuit.
(Multi-Layer Ceramic Capacitor)

[DC Power Jack is part of the circuit. Where it is attached look at those P.MOSFET's.
Example using HP Pavilion dv6000 series, and Pavilion dv9000 series of Notebook PC's,

These series of HP's use the Fairchild Semiconductor International - FDS6679 - Power MOSFET, and the Alpha & Omega - AO4407 - P.MOSFET.

Looking at the second photo down, with the AO4407 circled in Yellow; look at the small rectangular object to the immediate right, that has a wide dark band on it.

There is one above it of the same size, and one above that one.
There is also one to the right of the top one.

These are MLCC's.

Scroll down.

AO4407 has been phased out. List shows cross-references.

Just 4.7Mfd examples at 16 Volts.
Do not know the values of yours ]

Electrolytic Capacitor/s replacement?

OH, just cleaning the laptop out?
S'okay I was just letting you know board level replacement is possible.
(Does kinda' depend on your de-soldering/soldering skills, though)

Reply in a Comment.


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1 Answer

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1 Answer

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