These laptops have a history of problems dating back as far as 2006. Some of the symptoms that begin to appear are a disappearing wireless connection, power button malfunctions, random restarts with the lid closed and no video display. I realise that this is not new information to the thousands of affected owners of this hardware but HPs response to this issue is completely unacceptable.

From the information that I was able to gather it appears as though the onboard graphics chip used (gforce go 6150) runs extremely hot. This graphics chip coupled with the inadequate cooling and the poor construction of the motherboards solder joints leads to an eventual failure on this series of hardware.

HPs response to this? To apply a bios update that will increase the fan speed to try and keep these units functioning until the warranty runs out. A band aid solution that addresses a symptom but not the problem.

I will most certainly advise anyone that I work with to avoid HP products entirely.

Source: HP dv6000 laptop start-up problems. (http://forums11.itrc.hp.com/service/forums/questionanswer.do?admit=109447626+1258289318959+28353475&threadId=1147659) - Don't bother wasting money on a new battery, it isn't that - it is faulty hardware, usually the motherboard, often caused by overheating due to the usage of sub-standard parts. This one is so screwed that a few moments ago I brushed across the touch pad and all the LEDs that had been alight went out!
Source: Repairing The Display Problem in HP dv2000/dv6000 series (http://www.nerdmodo.com/2009/04/repairing-the-display-problem-in-hp-dv2000dv6000-series/) by yasir - Actually the problem is in the Ball Grid Array (BGA) of Nvidia GPU. With the passage of time (approximately 1 year), the Ball Grid Array Soldering of the GPU gets damaged due to heating.