Question about Compaq Presario Notebook

1 Answer

Caps Lock on when boot?

Sometimes when I turn on my laptop, the fan sounds like it's starting, and the caps lock is stuck on (not flashing like most other posts when I tried to search for this), then nothing else happens, just a black screen, while it sounds like it's working... and then I have to reset with the whole battery out, power button 30 sec. thing... I was just wondering if it means anything, because it is happening more often recently, and only started happening in the last 6 months...

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  • 6 more comments 
  • Tyler DeSautel Apr 30, 2013

    1) It could be that... I've had this laptop for almost 2 years... P.N. = XU683UA#ABA

  • joecoolvette
    joecoolvette Apr 30, 2013

    Compaq Presario CQ56-129NR,.........http://h10025.www1.hp.com/ewfrf/wc/produ... .......The laptop's hardware components are cooled by air........The cooling components are; Cooling Tube, Heatsink, and Fan Assembly......Here is a general example,.....http://www.ebay.com/itm/HP-Compaq-Presar... .........(If the links are not highlighted in Blue, they are not direct links.....Copy the link {URL}, paste it in your address bar, { http://}, then press the Enter key) ......The Main view shown automatically opens to a Bottom view, of the cooling system.....In the 3 smaller views below the Main view, the small view all the way to the Right, shows a Top view..........In the Bottom view you see the finned rectangular Heatsink, at the Top.......Copper Cooling Tube comes down from it.....(No. The wires coming from the Fan Assembly, does NOT mount to the copper Cooling Tube.......That is a power cable for the Fan Assembly.....The seller apparantely just stuck the small Black male plug connector, for the Fan Assemblies power cable; to that white label for safekeeping ).......Coming DOWN the Cooling Tube, observe the first small rectangular shaped plate of metal.......That Cooling Tube plate sits on the graphics chipset (G.P.U.).........The next small metal plate down at the end, sits on the Processor. (CPU)..{Has three 'arms' coming off of it).......The Cooling Tube is a slightly flattened copper tube, sealed on both ends; and filled with Nitrogen.......The Heatsink is a small strip of metal, with Tall, Thin, fins on it........The Fan Assembly consists of a small Black multi-bladed fan, sitting in a D-shaped fan shroud..........Heat is absorbed from the Processor, and graphics chipset, by their two respective small metal plates....The heat from the small metal plates is absorbed by the Cooling Tube........The Cooling Tube transfers the heat up to the finned Heatsink........The Heatsink absorbs the heta, then radiates it away with it's tall, thin, fins......Air flow from the Fan Assembly helps carry heat away from the fins of the Heatsink........

  • Tyler DeSautel Apr 30, 2013

    ok, so what are you telling me? are you telling me to buy this? or are you telling me what i have already? all I wanted to know is what the light means... and that wall isn't really formatted as instructions, if that's what you wanted to do...

  • joecoolvette
    joecoolvette Apr 30, 2013

    heta......New word I apparantly just invented........As you have probably noticed by now, you can set your mouse cursor in the middle of the photo; and this enables the Zoom In feature.........Looking at the Bottom view, and the small metal plate that sits on the Processor; you can see Thermal Paste residue left behind......Imprint of Processor is still in the Thermal Paste residue.....(Grayish Thermal Paste residue).......The small metal plate that sits on the graphics chipset, still has a piece of Thermal Pad on it. {Beige(?) in color }..........When the Heatsink's fins get clogged with 'Gunk', and the Fan Assembly's fan, and shroud get clogged; the cooling capacity drops tremendously......('Gunk' = Dirt, dust, lint, carpet deodorizer, hair, food crumbs,...you name it).........The hardware components inside the laptop overheats......When the Processor overheats it turns off..(BIOS turns it off)......This is a fail safe feature that is built-in.....Keeps the Processor from burning up........After repeated overheating, the Thermal Paste dries up........A Thermal Pad is a material that is impregnated with Thermal Paste...So you can see how this equates to it also.........Thermal Paste, and Thermal Pad should be replaced......I also have a upgrade to the cooling system, for the graphics chipset, that I would like to run by you......Involves NOT using a small piece of Thermal Pad anymore, and substituting with a small piece of copper sheet......Thermal Pads are J-U-N-K!....(Cannot be reused anyway).........A piece of copper sheet, the correct amount of thickness; is used. (Around 1/16th of an Inch thick....0625 inches) ....Thermal Paste is applied to the top of the graphics chipset. (PROPERLY)......Then the small piece of copper sheet is applied........Then more Thermal Paste....then the Cooling Tube is set into place.....(Find small piece of copper sheet at Hobby store, for one example).........The width, and length of the copper sheet is larger than the Thermal Pad would be....How big?......Suggest as large as possible, without running into any hardware components, or electronic components, on motherboard....(1-1/4th inches by 1-1/2 inches?....You will know what the proper size is).........More surface area for cooling the graphics chipset........Makes things last longer, and are Not using a Thermal Pad........

  • Tyler DeSautel Apr 30, 2013

    oh i see... i might have to try that, thanks!

  • joecoolvette
    joecoolvette Apr 30, 2013

    About Thermal Paste; ......The top of a Processor is not perfectly smooth. (Graphics chipset, either).....A maginified view would detail, 'Ridges, Valleys, and Pitholes'........This is the same for the small metal plate of the Cooling Tube, that sits on the Processor. (And the one that sits on the graphics chipset).........When the two parts are mated together, Air Pockets are created......In this case air is an Insulator, and not a Conductor........Thermal Paste fills the above imperfections, and is an Excellent conductor of heat.......On the HP Support main page, click on User guides.......In the list click on -> Compaq Presario CQ56 Notebook PC and HP G56 Notebook PC -Maintenance and Service Guide....Ignore the following if you are aware......This is a PDF file...The computer you are using now has Adobe Reader on it, which uses PDF files.......After you click on the file name, it may take up to 30 seconds before the first page comes up......Moving on.......You need to wear an ESD wrist strap, and have it's alligator clip attached to a good ground source......You can set a large metal serving tray (Unpainted), on the table you're working on; and connect to it........Or a large metal knickknack. (Unpainted)......Average cost is $3 to $6.....Here is but one example........http://www.radioshack.com/product/index.... .........DO NOT use one, and have it's alligator clip attached to a good ground source, you may as well skip the motherboard across the lake.........Your body carries Static electricity...Static WILL fry out (Short Circuit), the delicate hardware components inside a computer....Hence wear an ESD wrist strap........How far do you have to disassemble the laptop?......Down to the motherboard in your hand......The processor, graphics chipset, and Ram Memory; are on the Bottom of the motherboard......General example of motherboard.......Main view shown shows Bottom view......Pink rectangular socket is the processor socket.....It is a Socket P processor socket.....http://en.wikipedia.org/wiki/Socket_P .........The graphics chipset (GPU) is sitting to the Left.......No access cannot be accomplished from the bottom of the laptop.........You have to disassemble from the Top down, remove motherboard..........If you decide to undertake this endeavor, post back in a Comment.......I would like to guide you step by step........Also want you to know, that if you break the Keyboard Cable's motherboard connector, you are looking at MOTHERBOARD REPLACEMENT.....With my guidance this will not happen.....(Large photos, and information on motherboard connector)....Also applies to other motherboard connectors, that a Flat Flex Cable is attached to.....(The Keyboard Cable is an FFC......There are other FFC's used also.......Touchpad Cable is one of them)........Sounds, and may look daunting........I can guide you so it is not.........Regards, joecoolvette

  • joecoolvette
    joecoolvette Apr 30, 2013

    Hmmm, wHeRe did the motherboard example go?.....(Cyberspace.....the OTHER frontier)......http://www.ebay.com/itm/Compaq-CQ56-6239...

  • joecoolvette
    joecoolvette Apr 30, 2013

    'Wall'?........Yes, FULLY understand what you mean.......When the solution goes to the Comment section, the expert then is forced to use a 'ticker-tape' type of format......Hence why I use periods to space out the sentences......It also used to be automatic, for a URL that was pasted in the Comment section, to be a direct link.......With new site changes, apparanetly this is not an option anymore........If the laptop model number was listed in the beginning, I could have had the Solution box, and it's format........Spell check,...and proper spacing with paragraphs.......One never knows who they are conversing with on here, so do not know the person's computer knowledge........If it cannot be discerned in the problem stated, then it has to be assumed they have little computer knowledge, in the area if the problem they stated.......Hence why I am so windy.......I could have just stated, "Clean the inside of the laptop out, and replace Thermal Paste, and Thermal Pad...You'll be glad you did......(Lol! Inside joke)........LOT of reading, hard to read......

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  • Compaq Master
  • 5,660 Answers

Let's start off with the simple stuff first;

1) Laptop dirty inside?

Post back in a Comment.
Also post the Product Number.
This can be found in the white Service Tag, on the bottom of the laptop. P/N = Product Number.

Regards,
joecoolvette

Posted on Apr 30, 2013

  • Tyler DeSautel Apr 30, 2013

    1) It could be that... I've had this laptop for almost 2 years... P.N. = XU683UA#ABA (I dont know what you meant by comment, so I posted it here too...)

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itf that dont fix it

try again to power up and press either the f5 or f8 key
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