It is very dangerous if your laptop / computer regularly faces the problem of overheating. This needs to be tackled immediately as it can compromise your safety. In the case of HP DV6000/DV9000/DV2000 computers, this type of problem sometimes arises.HP laptops are affected with problems to do with powering on and constantly shutting off. One of the reasons for overheating issue is a faulty chip on the graphics card. Reflow of the graphics chip can solve this crisis but this process involves an expert procedure that needs to be done with the utmost care.
There are several symptoms that cold indicate a problem with your graphics card:
The machine randomly powers itself on or off
Problems displaying video
The power strips lights up, beeps and the computer shuts down
Loss of power
Intermittent loss of wireless signal
The touchpad becomes slow or unresponsive
These issues can be fixed by reflowing the graphics chip.
Disconnect the machines power and take it apart
Remove the RAM
Remove the CPU
Remove the heat-sink and fan
Insulate the motherboard:
Protect the CPU and RAM areas
Cover any plastic plug ports
Try to leave 1/4 inch area around the edge of the chip free of insulation.
You can use folded over tim foil to insulate the motherboard
Once your motherboard is insulated, make sure there is nothing flammable nearby
For the next step of the process you will require a heat gun.
You will also need some coins to place on top of the graphics chip - a stack of 10 should do. This ensures the heat transfer is slower and more even as well as applying the necessary pressure on top of the chip to press it down.
It is worth noting that Hewlett Packard sometimes uses red epoxy around the edge of the chip to secure it. If there is a lot of it, you may need to use a razor to scrape off some of the epoxy. Be careful doing this as you can easily damage valuable computer components.
Heating the chip
Hold the gun at a 45 degree angle, about six inches from the top of the stack of coins
Aim at the edge of the chip
As you heat the chip, rotate around the edge of it, gradually tightening the circle and closing in on the centre.
As you do this, move the gun gradually closer to the chip, but never closer than the top of the stack of coins.
Repeat this step several times
It takes a lot of heat to reattach the chip to the motherboard in this way
The process should take around three minutes in total
Be careful not to overheat the chip as this will cause permanent damage
It is better to underheat it and have to redo the procedure than cause irreparable damage
Leave the stack of coins on top of the chip for another five minutes after switching off the heat gun
Remove the coins
Be careful, they may still be hot
Remove the insulation you installed and reassemble the machine