Pavilion HP LaptopFix / Issues DIY
This site has been outlining some of the steps to fix the HP Pavilion Laptops specifically the following series of HP Notebooks:
But this morning I woke up and received another comment on the DV6000 Penny Fix post and I though it was very important to share with you as a separate post due to the fact that the DV6000 Penny Fix page has received over 90 comments and you may not get to the bottom of it.
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Thank you very much Braden: the comment is as follows word for word.
"I used to work at a reflow shop, and was one of seven guys (out of twenty) who worked on nothing but HP's, we had so many. A couple things to note.
1.) If your laptop is powering off within a second or so of being turned on, it is also the Northbridge (or possibly the processor, but probably not).
2.) If you're getting bad video issues that aren't caused by the LCD or LCd cable (ie white screen, split-screen, or garbage) it is the GPU, if your laptop has a GPU, which is the chip to left of the northbridge. If you don't have a GPU, it's the bloody northbridge.
3.) If your USB ports, webcam, sound, ethernet, etc don't work, it's the southbridge, which is under the wifi card. This is a lot rarer, and you'll more than likely kill the board the rest of the way by using these methods to fix, so I would really recommend sending it out or dealing with a partially functioning laptop.
4.)If one of your RAM slots has failed, if it is an AMD board it is the processor, if it is an Intel board it is the northbridge. It is almost never the slots themselves, at least on any HP I've ever worked on. I've heard different about some of the other brands.
5.) Stick the board in a low-temp oven for at least four hours before reflow. That wont fix it, but it will bake the moisture out of the board so it wont warp when you apply heat from the heatgun. If your board warps, it's toast, the layers of the PCB will short everything in the area of the warp, and there's nothing you can do about it.
6.) These boards can take a surprising beating. If you really don't want to spend the money, keep trying until the board is black. Even if it gets browned around the edges it's still probably fine. Just be sure you don't dislocate any of those fifty-billion tiny capacitors.
7.) No power issues are also sometimes caused by the southbridge or the Super-IO (don't reflow the super-IO, replace it, and good luck, it's a bitch.) More often, however, it's a cap or a transistor on the V+ line. If you know what you're doing, it's a super-easy fix, but be sure and replace the transistor with a diode. HP used transistors instead because they're cheaper, but they suck and fail, and a diode is what you need.
Good luck! In principle, this method works similar to a reflow machine, but is way cheaper. Just be careful to keep the temperature as even as possible on both the top and the bottom of the board.
Any questions, email siekomonki at gmail.