Question about HP Pavilion dv9000z Notebook

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Overheats During Extended Use

Unlike many others who have had display issues stemming from the video accelerator running too hot, my dv9000 series notebook will simply stop functioning. The keyboard will become non-responsive, along with the touch pad mouse and any devices that are plugged into the USB ports. Invariably a message will come up saying that there was a delayed write failure (hard drives go offline).

I have also noticed that this machine tends to run very hot, to the point that the keyboard is extremely warm to the touch with no prolonged contact with the areas right below it where the HDD's are housed. Sometimes if I am there when this occurs I can manage to shut the system down by momentarily pressing the power button (have windows power management configured to shut the system down when the power button is pressed for less than 5 seconds).

The display never goes out on it's own or fails to function, and the fans do run at idle with little change in speed as the system warms up or heavier CPU loads are imposed. This machine is never used on the lap (despite it being classified as a 'laptop' or 'notebook'). It is always kept on a hard surface with the rear area propped up (tilted forward) to allow maximum air flow through the vents and fans, no obstructions. This seems to help a little bit, but not much.

HP dv9000 CTO notebook, custom built, Intel Centrino Duo 2.0GHz, 2GB RAM, nVidia GeForce Go7600, DVD-RW, 17" widescreen WXGA display (no brightview), Intel Pro Gigabit LAN w/bluetooth and wireless A,B,G, dual HDD's (120GB/160GB) built March/April 2007 (only available with Vista, 'downgraded' to XP Pro but kept original pre-installed 64 bit Vista Ultimate HDD)

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  • Manta69 May 28, 2008

    Yes, both fans do spin freely when the system is off and both do energize when the system is running. The system does get quite warm within an hour after it's turned on, but at this point in time it won't begin to fail until it's been running for several hours (around 8-10). I did purchase the three year warranty at the same time as I ordered the system built, but I am not sure if I have grounds to qualify for a warranty MOBO replacement, considering how long it takes for the system to become unstable.



    Are notebook PC's designed for prolonged use, or should I consider resurrecting my desktop PC?

  • Manta69 May 28, 2008

    Okay, thank you for showing me the error of my ways ;-)

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First of all pls do chk weather the fan below the laptop is functioning properly or not do u get lil vibro of the fan ??when u touch it wd ur palm ....it may be due to various reasons how much time does it take to get hot ??if it is too early then sir the mother board is going to say be bye and as u said tht the system become non responsive thts obvious cause the motherboard is malfuntioning tht time if u have the warrenty on the same get the mb replace

Posted on May 28, 2008

  • varun grover May 28, 2008

    8 hr?? thts long please do shut down ur computer after 5-6 hrs for atleast half an hr ...in this case i dont think tht there is some prob yes if the sys fails wd in 30 min or wd in 3 hrs of nonstop wrking then there is some prob wt u are facing is over loading

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I have a HP Pavillion DV9823Cl laptop. During initial power on, the lights come on briefly, then disappear, the fan starts, then stops. it continues a few times without ever startging the PC. One d


There was a recall on many of the Pavilion dv9000 series, of Notebook PC's. Ended April of 2009 officially first time, with an 'Enhanced Warranty' to January of 2010, being brought out.

" First Service Enhancement:
Laptop Models: HP Pavilion dv2000/dv6000/dv9000 and Compaq Presario v3000/v6000 Series Notebook PCs

Issue:
The following symptoms apply to Pavilion dv2000 and Presario v3000 notebooks:
- The notebook does not detect wireless networks and the wireless adapter is not detected in the Device Manager.
- There is no video on the computer LCD panel or external monitor.

The following symptoms apply to the dv6000, dv9000 and v6000 series notebooks:
- The notebook does not detect wireless networks and the wireless adapter is not detected in the Device Manager.
- There is no video on the computer LCD panel or external monitor.
- The notebook has no power and no active LEDs.
- The notebook does not start.
- The battery charge indicator light does not turn on when the battery is installed and the AC adapter is connected.
- The notebook issues a single beep during boot indicating no power.
- The external monitor functions but there is no image on the notebook LCD panel."

Problem?

Hardware issue.

Inadequate cooling for the GPU.
Graphics Processing Unit, or graphics chipset,

http://en.wikipedia.org/wiki/GPU

[ Chip and Chipset are slang terms for I.C.
Integrated Circuit,

http://en.wikipedia.org/wiki/Integrated_circuit ]

The GPU for the Pavilion dv9000 series Notebook PC's, is an Nvidia GeForce Go 7150M,

http://en.wikipedia.org/wiki/Comparison_of_Nvidia_graphics_processing_units#GeForce_Go_7_.28Go_7xxx.29_series

To explain further,
A) Starting with the inadequate cooling for the GPU:

http://www.laptopneeds.com/parts/show/110794324214/HP-Pavilion-dv9000-dv9600-AMD-CPU-Heatsink--Fan-Assembly-450863001

The above link shows the Cooling System for the dv9000 series of Notebook PC's.

Looking at the top photo you are looking at a top view;

1) The black Fan Assembly on the left top,

2) The finned black Heatsink, which is on the bottom of the Fan Assembly.
{The Heatsink cannot be viewed very well in this photo.
It is a rectangular object composed of thin fins, attached to a plate of metal.

The length can be seen by the two tabs at either end. One tab sticks out on the left side, and the other tab sticks out of the right side. Each has a hole in it.

The thin fins cannot be seen. They are running in a vertical position, in this photo }

3) The curved copper Cooling Tube. (Slightly flattened copper tube sealed on both ends, and filled with Nitrogen )

4) The Cooling Tube metal plates. A type of Heatsink.

Looking at the top photo, view the aluminum looking metal plate to the right, that resembles a square inside an X.
This metal plate sits on top of the Processor.

Looking to the left along the Cooling Tube, and coming away from the processor's metal plate, is another small aluminum looking metal plate.
This small square metal plate, protrudes out of the side of the Cooling Tube.

This metal plate sits on top of the GPU.
It's size is too small for the job. Inadequate cooling surface area.

Heat from the GPU, and the Processor, is absorbed by the individual metal plates, which sit on top of them.
The heat is then absorbed by the copper Cooling Tube.

The Cooling Tube transfers the heat along it, to the Heatsink.
The thin, tall fins of the Heatsink absorb the heat, then radiate it away.
(Much like a radiator used in a home, or a car radiator)

The Fan Assembly pushes air through, and around, the tall, thin fins of the Heatsink, and helps to carry heat away from the fins.

B) BGA Surface Mount:

To explain the BGA surface mount;
Compare to an older Intel Pentium 4 processor, and it's Socket 478 processor socket,

http://en.wikipedia.org/wiki/Socket_478

The flat bottom of the Processor chipset has contact pins, which protrude out. 478 of them.
The Socket 478 processor socket has 478 socket holes, to match.

With a BGA surface mount there are no contact pins, nor socket holes.
The GPU chipset has Solder Balls on the bottom.
The motherboard has matching Copper Pads.

The GPU's solder balls are lined up with the motherboard's copper pads. Then heat is applied at a specific temperature, and length of time.
The solder balls melt, which in turn solders the GPU to the copper pads.
(In turn soldering the GPU to the motherboard)

With the inadequate cooling for the GPU, the GPU overheats.
Constant overheating one day leads to the solder connections partially melting.
Poor contact is made from the GPU to the motherboard.

This link is to a video to show you more. It is not linked for advertising, nor the repair method,

http://www.youtube.com/watch?v=bnkQNmKauEc&feature=pyv&ad=5823851286&kw=DV9000

For additional questions please post in a Comment.

Regards,
joecoolvette

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1 Answer

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http://h10025.www1.hp.com/ewfrf/wc/document?docname=c01087277&tmp_track_link=ot_recdoc/c01611512/en_us/c01087277/loc:1&lc=en&dlc=en&cc=us
NOTE: Clicking the link may give an error indicating that it is invalid. If this occurs, copy the link and paste it on the address bar in your browser until the complete address is displayed in the Address box.

Check out if your notebook is listed in under this program. If yes, then contact HP to get the available options to get your notebook repaired.

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