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In the following guide I will disassemble a HP Compaq 8510p notebook PC and remove all main parts. According with the HP specifications, my disassembly guide should work for a HP Compaq 8510w mobile workstation. If it works for any other model, I would appreciate if you mention the model name in the following comments.
In the next guide I’ll explain how to remove and replace the screen inverter.
Before you start, you should turn off the laptop and unplug the power adapter.
STEP 1
Remove the battery.
Remove the hard drive and memory covers.
STEP 2
Remove the memory module.
Remove the hard drive as it shown on the sticker. Simply remove one screw securing the hard drive, slide the hard drive to the left and remove it from the laptop.
STEP 3
Remove one screw securing the optical drive (CD/DVD drive). Push the drive from the laptop with a screwdriver. Remove the drive.
STEP 4
Loosen two screws securing the keyboard. Both screws will stay attached to the laptop bottom.
STEP 5
Slide four latches securing the keyboard to the direction pointed by red arrows.
STEP 6
Lift up the keyboard with a sharp object, you can use a small flathead screwdriver.
STEP 7
Continue removing the keyboard. Place it upside down on the palm rest.
STEP 8
The keyboard is connected to the motherboard via two flat ribbon cables. Unlock both connectors by lifting the locking tab about 2-3 millimeters up with your finger nails. Be very careful with the connectors.
On the picture below you can see both connectors unlocked and keyboard cables removed. The locking tab must stay attached to the connector base.
STEP 9
Remove two screws securing the cooling fan. Unplug the fan cable from the motherboard.
Remove the fan.
STEP 10
Remove six screws securing the video card (VGA board) and processor (CPU) heat sinks.
Remove the heat sink.
STEP 11
Remove two screws securing the video card.
The video card will pop up at a 15-20 degree angle. Carefully pull the video card from the slot by the edges.
STEP 12
Now I’m going to remove the laptop top cover. Remove all screws from the bottom of the laptop. The orange screw securing the touch pad. There are two more screws (marked with green squares) hidden under rubber seals.
As you see, you can access the Bluetooth card through the hard drive compartment.
STEP 13
Lift up the touch pad assembly as it shown on the picture below. Place the touch pad upside down on the palm rest.
Disconnect the touch pad cable from the motherboard. Remove the touch pad.
STEP 14
Start removing the keyboard bezel with a small screwdriver. Do not forget to disconnect the cable the same way as you disconnected the keyboard cables.
Continue separating the keyboard bezel with your fingers and remove it from the laptop.
STEP 15
Unplug the LCD cable from the motherboard.
Unsnap three wireless card antenna cables from the wireless card.
Unroute the wireless card antenna cables.
Remove five screws securing the display hinges (two from the left hinge and three from the right hinge).
STEP 16
Remove four screws securing the display hinges on the back of the laptop.
STEP 17
Remove the LCD screen (display) assembly.
STEP 18
Remove six screws securing the top cover assembly.
Unplug the CMOS (RTC) battery cable from the motherboard.
Unplug the finger scanning device cable from the motherboard.
If you wish, you can remove the wireless card here. I’ll do it later.
STEP 19
Start removing the laptop top cover assembly. It could be a challenge.
The top cover is still attached to the bottom with a cable pointed with the red arrow. Unplug this cable. By the way, you can access the Bluetooth module from here too.
Remove the top cover assembly.
On the picture below you can see the finger scanning device attached to the top cover.
STEP 20
Remove two screws securing the speaker assembly to the motherboard (I don’t remember if I had to remove three screws).
Unplug the speaker cable.
Lift up and remove the speaker assembly.
STEP 21
Remove two screws securing the wireless card. Remove the wireless card from the motherboard.
Remove two screws securing the modem card. Unplug the modem card cable from the motherboard. Remove the modem card.
STEP 22
Remove two hex studs from the VGA port (two orange arrows on the top).
Unplug cables pointed with red arrows.
Remove five screws securing the motherboard.
STEP 23
Start removing the motherboard from the laptop base.
The motherboard has been removed. If you are replacing the motherboard, transfer the processor (CPU) to the new board.
January 17th, 2012 at 8:59 pm
@ Steven,
It looks like you might have a problem with one of the following:
1. Bad connection between the video cable and motherboard or LCD screen.
2. Failed video cable.
3. Failed LCD screen.
For some reason I think this is failing LCD screen. Here’s what you can try.
1. Disassemble the display panel and try moving the video cable while the laptop is running. If moving the cable affects image on the screen somehow, probably it’s cable related issue. You can try reseating cable connectors on both ends or try replacing the cable.
2. If moving the cable (without moving the screen) doesn’t affect image at all. But when you start moving the screen itself the video changes, probably it’s bad screen.
January 17th, 2012 at 3:49 am
Hi Tech Guy,
First of all, thanks for the clear step-by-step manual. I’ll make good use out of it when I’ll try to repair my laptop.
I have a question. My lcd screen has some issues. It’s kind of hard to explain, so I made a video of it.
http://www.youtube.com/watch?v=wHbIi9orCmo&feature=youtu.be
As you can see in the video, when I apply pressure, the screen is ok. Sometimes when I remove the pressure afterwards the screen stays ok, but mosty after a while it starts acting funny again.
I saw a LCD cable on ebay. Could that part maybe fix my laptop or must I replace the entire LCD screen?
Thanks so far!
January 5th, 2012 at 3:20 am
Thank you Tech Guy for your prompt response.
You are correct with respect to the graphics output to a external monitor, it corrupts in the same manor.
I’ll look for the specific part number, but my cursory search confirms your suspicion regarding the price of the cards..
Thanks again for your advice.
Best Regards.
January 4th, 2012 at 2:20 pm
mr_frustrated,
This could be the graphics card failure. I assume you having the same issue with video on the external screen?
They are available but not cheap. When you remove the keyboard, you should see the graphics card. There should be a label with the part number.
Something like 451377-001 (could be different). Search for a new replacement card using HP part number.
January 4th, 2012 at 1:49 am
Hi,
I am having some graphics problems with my laptop (compaq 8710w), these comprise rectangluar artifacts across the screen, intermittant flickering and frequent screen freeze and crash. It’s all very frustrating as you can imagine; in your experience do these symptons sound familiar to anyone?
I’m assuming that these issies are graphics card related and therefore plan to take a look to see if there is anything obviously wrong, your guide provides an excellent step by step precedure which I shall be following soon.
finally, are replacement graphics adaptors readily available?
much appreciated,
.
January 3rd, 2012 at 3:56 pm
@ Dominc,
I don’t thin you can replace the video card at all.
I believe the video card is part of the motherboard.
If you looks at the HP Compaq nx6325 specs, you’ll see it’s using shared video memory.
January 3rd, 2012 at 8:02 am
I have a HP compaq nx6325 laptop which is almost identical to this. I was wondering if it was possible to change the 128mb graphics for a 256mb card or would there be some sort of compatibility or power issues?
December 30th, 2011 at 10:12 pm
THANKS
Laptop Teach.
December 29th, 2011 at 2:10 pm
@ mudeer,
Probably this is screen auto-brightness sensor. It dims the screen in a dark environment and brightens it when you are in an area with lots of light.
December 28th, 2011 at 10:35 pm
Hi there
i am confused about one thing in hp 8510p laptop if you see down the screen there is a big hp write. on the left side of hp there is a glass hole present.
what is this? and what its uses
plz tell me about it.