Almost the entire HP line of the DVxxxx, TX1000, TX2000 sold during 2007-2009 had issues with the Nvidia GPU# I'll write down the symtoms along with what worked for me# Once I get some screen shots, I'll add them#
Here are the symptons of a bad graphics chip #GPU#
DV6000's, TX1000's, TX2000's# DV2000-DV5000 Series have the same problem if they have a Nvidia Graphics Chip
Notebook turns on & off all the time#
Notebook turns on & has no screen but you can hear/see #from the bottom# the CPU fan is working & you can feel the hard drive working#
Notebook will turn on but shuts down usually in a few seconds#
Notebook works sometimes or works but your wireless device is missing in device manager, or you just loose your wifi#
Now, if you think you can fix it, heres what will work# I know because I've done it on a lot of HP Notebooks#
Disassemble the notebook# When you do this, you will have 3 sets of screws# Bottom set 9-13 screws, Palmrest 3-5 screws, Motherbaord 2-5 screws
then you have the Heatsink that usually has about 5-7 screws plus the fan plug# Take off the heat sink & clean off the cooling fins# Note: If your fan will only spin about 1/2 a turn,
#you are trying to spin the fan by hand, I use anything that will fit on the fan & just try to spin it# If it spins 3-4-5 revolutions then your good to go#
you should order a new heatsink fan because yours is on the way out# As of now I have not been able to clean the fan to get it to work like it should#
Next take a heat gun, take a penny & put a small amount of solder on it# Time how long it takes before it starts to flow #melt# Your heat gun should be 1" above the penny#
Now with me, it only took 9 seconds for the solder to start to melt with THE HEAT GUN ON HIGH
Next take your board, get some aluminum foil, fold is into 1/2's at least, measure the size of the GPU, make a cut out on the foil, place it on the board with only the GPU showing#
Note: Hold the heat gun about 4 inches away from the other side of the board & heat it up a bit #5 seconds#, then flip it so your looking at the GPU# The foil acts as a heat sink
and allows heat to flow away from the board around the GPU
