Question about Compaq Presario R3000 Notebook

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Compaq R4000 Power Issue

Hi. Appreciate any advice. The past 2-3 days I wake up to an "off" computer when I know I left it on. When I try to boot up the laptop the computer appears to be dead, no lights, nothing. I cannot start it up.
I started doing some tests. I have found when I start playing w/the cord I can get a front charge light. then I quickly push the on button and it boots up. So, when I move the computer, it can quickly just die. Totally off. I thought it was the power cord, but now I'm thinking it's not. So, I ran a test. I checked the battery and it said 100%. I moved my laptop (which includes the cord) and it died. I think it's a power problem, some where near the power cord inlet. Anyway to fix myself. Thank you all.

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  • Poor Deb Jan 15, 2008

    Thank you very much for helping me. I will see if someone will fix today. Unfortunately it's not under warranty with HP :(

  • trid2bnrml Jan 16, 2008

    I have an R3000, and as I understand it, a design flaw in the power inlet will loosen the solder from the board. I found this to be true with mine, and after removing many screws and small parts, I was able to clean up and resolder the inlet to the board which solved the problem (for how long?)

    now all I have to do is get the audio working...

  • Poor Deb Jan 16, 2008

    Thank you trid2bnrml. Ironically my husband and I took the sucker apart last night. We did pretty good. Got a lot of dust out! However, when we came to that area, there was this off white housing overtop of the jack and we could not figure out to save our lives have to detach that. We are fairly intelligent people and got out all of the screws. We were going to buy a new DC jack, they are cheap. But we cannot physically get to it. How did you get the white housing off? Thanks so much for your help.

  • Poor Deb Jan 16, 2008

    Hi Ken, thank you also, I called HP. They want $298 to fix the laptop. Yikes. The laptop is not worth that after a year and a half. And my model the R4000 is not covered under the lawsuit, but that was a good try. Thanks!!!

  • Poor Deb Jan 18, 2008

    man, you are awesome. Thank you so much. I'm not sure if it was part of the fan assembly or not, I will check w/hubby. Thanks for the instruction reference, I will check it out on line! I was looking for instructions, I googled them, but had no luck. This should really help. I appreciate it.

    You are very nice!

  • Poor Deb Jan 19, 2008



    I found the manual, thanks!! I think it shows that housing. I'm going to show hubby tomorrow. I'm very excited. Thank you!!!!!

  • Poor Deb Feb 01, 2008

    Well, back to square one. I thank all for the tips. Very helpful. We bought a DC Jack. We used the tips from above to remove it, thank you and put the new one in. Still did not work. So then I bought a power cord on line thinking maybe that was the problem. Nope, still doesn't work. My husband said maybe replace the whole motherboard, but man, they are like $200 on ebay. This whole situation is so depressing. Any other thougths or ideas?

  • texansince84 Feb 07, 2008

    Hi, I have a Compaq Presario R4000 too and I'm having the same problem with the power cord...
    -If I move the computer, or the cord at all, the computer instantly turns off.
    -If I wiggle the cord while it's plugged into the computer, it turns off.
    -If I'm sitting on my bed with the computer plugged in and turned on, and I move at all- it turns off.
    -If I have my computer unplugged, it WILL turn on- however, if I plug the cord back in while it's turned on, the computer will shut off.

    The computer does fully charge when the cord is plugged in just right and very still.

  • tintin_8375 May 04, 2008

    Hello, I have the same problem, when I run the presario r3000 on the batterie there's no prob...whenever I plug the power cord, I intermitenly hear the fan reving really high and then the laptop shuts down. I have just formated and installed win xp corp and all drivers. Unfortunately I don't see any solution on the page I was reading, would it be possible to post a link to the solution please. Thx for your time, Marty



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I have a r4010US. I was having the same exact problem with my laptop. It would only charge if I the power cord in just the right angle, it would turn off if moved, and it was driving me nuts. I bought a new power supply off eBay and it didn't work at all. I then figured it was the power jack, so I took apart the laptop and started looking at the jack. It seemed to be fine so I put the laptop back together and th same thing happened. This time just for the heck of it, I cut the end off of the old power supply. I was shocked, all of the little wires were frayed away and broke from where the cord and tip of the connector joined. I took off the plastic barrier from the power supply i bought from ebay and took a bunch of the wires from it and wrapped them around the tip of my old power supply and then wrapped it with electrical tape then duct tape. Walla my computer works like a charm again! don't know if I was sold a **** power supply off ebay, or if the r400 is just picky, but my jerry rigged power supply works great and solved th problem.

Posted on May 12, 2008

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Poor deb---

are you referring to the fan assemblies that go all the way across the back , including over the jack? It comes out in one piece, there are screws at the forward and kind of hidden and hard to get to without completely disassembling the entire thing. I think you'll see that the little piece that comes up and over the jack is part of the fan assembly.

The hp website has a service/hardware manual that has blow-apart illustrations in it...that's how I found it, and you will too.

it's called---
HP maintenance and service guide
part no 33540402-003

Posted on Jan 18, 2008

  • trid2bnrml Feb 03, 2008

    To Ken--- yes, the interface had indeed loosened, must have happened because I didn't check everything for integrity before closing after fixing the power problem...thanks, I needed that!



Great, will do, you are very nice, thank you!!!

Posted on Jan 15, 2008

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Actually you can basically get this repaired free From HP or send it out for a 3rd party repair and get reimbursed from HP for the repair. Weve repaired way too many of these to list and the Schottkey rectifier in the supply line as well as the DC jack should both be replaced. Go to and see if your SKU and serial fall into the paramiters. If you want to do yourself they can be a pain but there is a better jack to use Manned by the same company as the factory one, Post back if you need more help!

Posted on Jan 15, 2008

  • Ken LaDere Jan 15, 2008

    Part of the settlement is after the warranty repairs and reimbursement for 3rd party repairs. We were involved in the litigation as a consultant for the plaintiff side. If they refuse to honor contact me back.


  • Ken LaDere Jan 24, 2008

    On the R3000 where the Audio quit working? The Headphone Interface board is not snapped in the socket correctly.. Look on the Left sida lower after the Base plastic is removed and you will see what I'm referring to. (Board under the systemboard).. Good luck all!


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