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How To: Clean the Heatsink/Fan Assembly on a dv2xxx.

Discussion in 'HP Pavilion Notebooks' started by FunnyX, Mar 10, 2008.

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  1. FunnyX

    FunnyX Notebook Consultant

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    ** NOTICE: If you do not feel confident about doing this fix yourself, thats ok, being worried about opening a notebook is perfectly normal. You can always find someone who is capable of doing it or if your notebook is still under warranty,(which it should be) you can always send it in to be serviced. **

    Best place to work on a PCB or electrical device is; Kitchen(tiled) or bathroom. Avoid carpet, and to be extra safe take off your shoes and socks...


    Ok, now we'll start;


    Step 1.

    a) Remove all power from the notebook.(never a good idea to work on a computer thats on :D~) This includes; Ac Adapter, Battery, and any USB device.

    b) Start unscrewing all the labeled screws and arrange them on your post it note groups(use the image included).

    [​IMG]


    Step 2.

    a) Now turn over the notebook, open the lid (careful, the keyboard may be loose inside and can fall out partially), The power panel and keyboard will now be loose and are ready to be removed.

    b) Take your soft durable piece of plastic (your listerine pack), locate the left side gap between the bottom case and power panel, and pry the corner closest. It should come up pretty easily, if it does not make sure you got all the screws you needed to from the bottom of the notebook.

    [​IMG]

    c) Once you pop up that side you should be able to get a grip of the keyboard, pull the keyboard towards you, you don't have to disconnect it, once its out of the way you should be able to get your fingers under the power panel, you'll hear some clicking... but don't worry thats normal.

    [​IMG]

    d) Now the power panel should only be connected by 2 connectors. The power switch and the media touchpad. First unplug the power switch, BE VERY CAREFUL, try not to pull on it with the cord... the power buttons are very fragile, try and get your 2 index fingers to pull the top corners. It can be hard but it will come out, try wiggling it.

    [​IMG]

    e) All thats left is the media touch pad. using your 2 thumbs and/or index fingers pull up on the either side of the input, should be fairly easy to get open. Then remove the power panel.


    Step 3.

    a) Now that you have removed all the top case attachments, we're going to remove the screws holding the top case down, Use the screw map to remove the; D and A screws.

    [​IMG]

    b) Now that you have removed all the D and A screws, we will remove the C and B screws. A couple things before you do that though, go through and unhook all the wire running through the top casing. Once you have freed all those wire from the top casing, pull your LCD Assembly up to a 90 degree angle(straight up). I will explain in the next section.

    c) Now while holding the LCD Assembly, remove the first C screw and the first B screw. After that, remove the second C and the second B screw, we do this as a safty precaution in case while something happens after you take out the screw(s). Now all the screws should be out of the top case, and the LCD Assembly should be loose, just simply pull your LCD Assembly straight up. It should come off without issue.

    d) To remove the top casing with either you finger nails or a your plastic tool, pry apart the top/bottom casing on either side and pull up, make sure the touch pad is disconnected. The entire casing should come straight up and off of your unit.


    Step 4.

    a) Now you should be staring at the guts of your notebook, looks pretty intimidating doesn't it? Its really not so you don't have to worry. Start by unplugging anything that is attached to the bottom and right sides of the logic board(motherboard). Using the Logic map below, Unscrew anything inside the Blue boxes, and Unplug anything in the Green Boxes.

    [​IMG]

    b) Everything should be unplugged, clear of the logic board. Using your right hand maneuver it under the right side of the logic. Gently pull up on the right side as shown in the picture below. It should come up fairly easily, If you find it hard to pull up then wiggle it slowly back and forth.

    [​IMG]

    c) Now continue pulling the right side up until you feel little to no resistance from the bottom case. Then slowly pull the logic out and to the right, as shown in the picture below.

    [​IMG]


    Step 5.

    a) Now that you have the logic out, place it on a static free surface, i.e. rubber(best), wood, cement, etc.... No Cloth or Leather like material.

    [​IMG]

    b) Flip your logic over so you see your 2 sticks of ram as well as your heatsink and fan. Unscrew the 4 screws on the heatsink in order(each screw has a number you can go up or down, it doesn't matter). Once unscrewed the cross beam on the bottom of the logic will come off, all thats left now is to unplug the fan on the opposite side of the ram and heatsink.

    c) Now that you have your heatsink/fan assembly off, unscrew the 3 screws on the top of the fan, and the cover will flip forward allowing you to clean it thoroughly.

    [​IMG]

    ** Cleaning tips: You can use virtually anything you to clean it, except liquids... liquids may has erosion on the fans motor or the heatsink itself. Recommended: toothbrush(an old one you aren't planning on using again...), compressed air, lint brush, etc. **


    ADDITIONAL NOTES:

    When putting heatsink back on your logic 3 things you need to make sure of;

    ** Make sure the Processor is in the locked position.

    ** Make sure the connector from the fan is clear, and isn't wedged between the heatsink/fan assem. and the logic.

    [​IMG]

    ** Place Crossbeam on bottom of logic before attempting to screw the heatsink/fan assembly back on. Below are a couple pictures to better explain.

    [​IMG]
    [​IMG]


    If you have any questions, corrections and/or comments, Please feel free to post.

    Hope this helps.... good luck.
     
  2. flipfire

    flipfire Moderately Boss Super Moderator

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    Awesome thanks for this... rep you again when i can.

    Will doing this void my warranty? .. i was thinking of cleaning my fans in a few months time and using arctic silver for thermal paste. I can start to see abit of dust forming already
     
  3. FunnyX

    FunnyX Notebook Consultant

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    These days, there is no real way for them to tell if you did it or another service company did it... we all get units randomly and also based on location.... So no as far as they can tell it was just another service company.
     
  4. Tib30015

    Tib30015 Newbie

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    nice write up...it's very very similiar for the DV6000 too
     
  5. FunnyX

    FunnyX Notebook Consultant

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    yeah the dv2000 and the dv6000 are very close in case setup, but their boards do vary quite a bit.
     
  6. flipfire

    flipfire Moderately Boss Super Moderator

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    Ohh right.. cause i saw a few stickers that says "do not remove, will void warranty" or something like that. I just wanna make sure i do not void my 3 year warranty

    Is changing notebook thermal paste as easy as desktops? I plan to use arctic silver 5. Can you add in a guide on how to change this aswell? (if its not too much trouble)

    Thanks alot
     
  7. radopod

    radopod Notebook Evangelist

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    Great tutorial FunnyX. But isn't there any other way to get the job done. I am pretty apprehensive about this move. Maybe using a Vacuum cleaner or something?
     
  8. FunnyX

    FunnyX Notebook Consultant

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    These days thermal paste is somewhat obsolete. The way heatsinks work these days, is there is a gel like substance between the heatsink and a thin square of aluminum.

    The reason they changed to this format is because its more affective and move reliable. Thermal paste, believe it or not, actually has a life span.... Once thermal paste was at the end of its life span, it would harden and actually do more harm then good.

    These days by adding thermal paste, you actually insulate the heat rather then disperse it.
     
  9. FunnyX

    FunnyX Notebook Consultant

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    Really the only other way to get it as clean as cleaning it by hand is by using an air compressor... the kinda you would use to fill the tires on your car... if you look the 'sinks' in your heatsink you can see they are much to small to allow clumps of hair out... and even a air compressor would just blow the dusk out of the clumps.... little else...
     
  10. flipfire

    flipfire Moderately Boss Super Moderator

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    I thought they used thermal paste and pads..

    Yes ive heard of this lifespan issue before but I actually plan to re-apply the paste every 6 months or so the same time i clean my fan again.

    Ive seen a few reviews on its effectiveness and was pretty impressed
     
  11. FunnyX

    FunnyX Notebook Consultant

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    Sorry for the late reply.

    I understand where your coming from, you could do it and have it make the heat transfer a lot smoother... but I don't recommend it.

    The reason I don't recommend it, somewhat pertains to the question you asked in your earlier post about the warranty. Your warranty should be fine if you just stick to the rule of not adding anything to your machine. Dealing with so many units a day you always try and find the quickest answer to most problems(or find something to blame) so you can get that unit out and back into the EU's hands.

    By adding (additional) thermal paste they automatically know it was put there by an EU, because no servicer adds anymore to the unit then what it originally came with. I have a feeling this will become the 'scape goat' and your unit will be less likely to get the proper treatment during the first service.
     
  12. flipfire

    flipfire Moderately Boss Super Moderator

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    I guess your right, it be obvious and void my warranty. I should have stuck with 1 year warranty instead of 3 years. HP wont let you touch anything hardware, they wouldnt even let me upgrade my RAM, but i did anyway.

    Cheers
     
  13. Is_My_Name_Taken

    Is_My_Name_Taken Notebook Enthusiast

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    Is there anyway to upgrade the main fan? Like replace it with a more efficient or quieter one? I have a dv9000 and while I have not taken it apart to the extent you have shown, the set ups is at least somewhat similar. If the fan is replaceable it would be really nice to get a better one to help deal with the 9000 series heat problems.
     
  14. FunnyX

    FunnyX Notebook Consultant

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    Sadly its not possible, as far as I know...

    Most fan's screw lay out are slightly different from one another, making it nearly impossible to swap different unit's Fan Assemblies. But I could be wrong, if you find a fan with the same screw layout and diameter... it should work, voltages don't very too much between fans.
     
  15. deadline99

    deadline99 Newbie

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    Great article thanks, I have an HP pavillion ze2000 which is overheating and shutting down quite often.

    I intend to disassemble it and clean the heat sink and fan. However I don't want to do that and suddenly find that I need this gel you mention in reply to a comment.

    Can you add to the top of your article a list of things needed before disassembly?
     
  16. flipfire

    flipfire Moderately Boss Super Moderator

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    - screwdriver
    - A brain with IQ of 90+
    - toothbrush/compressed air.
    - thermal paste (optional)

    I suggest reading your service manual first. It should all be in there
     
  17. f15hp

    f15hp Notebook Consultant

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    You can find the service manual at hp.com, in case you need to know how to open the HP ze2000.
     
  18. deadline99

    deadline99 Newbie

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    Unfortunately the manual says nothing about brains, toothbrushes, compressed air or thermal paste. It gives no clue about how to go about cleaning the heat sink and fan either. and yet it has the temerity to be named 'Maintenance and service guide'. It is good on disassembling though ... Just as well ... because to get to the heatsink and fan, there's a heck of a lot of disassembling.

    cheers
    Deadline99
     
  19. flipfire

    flipfire Moderately Boss Super Moderator

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    Of course not. HP coins the term 'Maintenance' as replacing parts

    Its common sense on how to clean fans. The manual just tells you how to pull it apart.
    -Toothbrush
    -Compresed Air
    -Cloth

    Personally i use all 3 when doing serious cleaning. The tootbrush to scrub away the big bits. Compressed air to blow away little bits and a damp cloth of methylated spirits to purify it
     
  20. noplan

    noplan Newbie

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    Nice manual, thanks. You wrote
    , does that mean, the processor has a socket and can be removed? A HP technican told me, that all Pavillions have a soldered CPU which can not be removed.

    thanks,
    noplan
     
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