On V2000 there is a thermal pad on the GPU. Did you replace the thermal pad also? This needs to be replaced every couple of years or every time you remove the heatsink. You shouldn't use same thermal pad again. You must replace it with an exactly same new thermal pad or with an aproprate gummy thermal paste that is specially designed for thermal pad replacement. Such paste is K5-PRO which you can see on youtube here http://www.youtube.com/watch?v=7gD4ZBOp-bE it is also avaliable on ebay here
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Verify that the Fan and vents are free of dust, use a can of Compressed Air the clear the vents, heat sink and fan. Improve air flow from the bottom of the laptop through the machine and out the vents. Use a Laptop Cooler with multiple fans. If necessary replace the Thermal Paste on the Graphics Adapter and CPU. Overheating will cause catastrophic damage/failure to the components. When the Laptop sensors read a specific temp it will shut down to prevent damage. I'm not sure if this freeware program will work but you can try: http://www.filehippo.com/download_speedfan/ ALSO, try this freeware program. RAZER GAME BOOSTER, to disable ALL unnecessary, you select/configure, to improve Gaming Performance: http://www.razerzone.com/gamebooster It may help to reduce heat by stopping some services , reducing the CPU and Memory load.
This sounds like it could be an overheating issue. Some manufacturers use a cheap thermal paste on their processors. If you are dealing with a computer this should be an easy fix but if you are dealing with a laptop then it is much more involved. Go to Youtube and research replacing or removing heat sink. You wont be replacing the heat sink but the procedure is the same except you will need to clean the old paste off your heat sink before you apply more. Don't go crazy with the paste, a little goes a long way, all you are doing with the thermal paste is ensuring full contact between the processor and the heat sink with no air gaps.
When the CPU overheats then it will shut down (i.e. thermal overload) and won't boot up again until it has cooled down. If this is the problem is not fixed then the CPU will eventually fail. A faulty fan causes the problem or the fan and heat sink assembly are clogged with dust. Check the CPU fan to see if it spins freely, if not replace the fan. If the fan and heat sink is clogged with dust the remove the dust and make sure the vents are clear and dust free. Use a small brush and can of compressed air to do this.
Three reasons a laptop will overheat and shut down:
1. Dust - Dust inside, dust clogging the vents, dust around the cpu and
heat sink. Blow out the dust with a can of compressed air.
2. A Fan not working. Take the laptop apart and replace the fan. Just
put Dell Inspiron 1501 Fan in the seach box on ebay. You'll see plenty
of them at:
3. Thermal Paste around the CPU and Heat Sink has dried up or is too
thin to keep the unit cool. Apply a fresh coat of thermal paste on the
cpu and heat sink. Even if you just change the fan, apply a fresh coat
of Thermal Paste.
Also you can buy a Laptop Cooling Pad at Tiger Direct for under $15. It
plugs into one of the usb ports and the laptop sits on it. It has fans
to keep the unit cool.
Maybe it is overheating and it shuts down so that it does not damage the motherboard.
Three things that will cause a laptop to overheat. 1) Dust - Dust inside the computer, dust clogging the vents, dust around the fans, cpu and heat sink. Remedy - The best remedy is to take the laptop apart and blow the dust out with a can of compressed air. If you don't take it apart you could blow out the vents with a can of compressed air and it might work, but you will be blowing the dust inside.
2) A Fan not working. The laptop will have to be taken apart to replace the fan.
3) The Thermal Paste around the heat sink and cpu had dried up or is too thin to keep the unit cool. Take the laptop apart and apply a fresh coat of thermal paste around the cpu and heat sink.
One sure sign of overheating is that if you immediately try to power the laptop back up, it will not boot. But if you wait awhile and let it cool off then try to boot it up, you can boot successfully until it gets hot and shuts off.
You could also try a Cooling Pad that plugs into the usb port and the laptop sits on it. It has fans to keep the laptop cool. The pad can be purchased for under $20. Try Tiger Direct at: http://www.tigerdirect.com
When the site comes up just type in the search box at the top: Laptop Cooling Pad. When the search results come back sort them by Price Low to High and you will see them starting at $5.99 or so.
Sounds like your laptop might be overheating. Does it reboot successfully immediately after is shuts down after 5 minutes or does it have to sit awhile before it reboots successfully?
If you can't boot it right back up after it shuts down, then it is definitely running hot and will only boot back up successfully after it sits awhile to cool off.
Things that cause it to run hot: 1) Dust... Dust clogged in the vents, fans and around the cpu and heat sink. 2) A Fan is not working 3) The Thermal Paste around the CPU and Heat Sink has dried up or is too thin to keep the unit cool.
For the best results you'll have to take the laptop apart to remedy the situation especially if you need to get to the Fan, CPU or Heat Sink.
You can try a can of compressed air and blow out the vents and fan area, that might work for a while but you'll be blowing the dust in. It's best to take it apart and blow the dust out.
When the CPU overheats then it will shut down (i.e. thermaloverload) and won't boot up again until it has cooled down. If this is theproblem is not fixed then the CPU will eventually fail. A faulty fan causes the problem or the fan and heat sink assembly are cloggedwith dust. Check the CPU fan to see if it spins freely, if not replace the fan. If the fan and heat sink is clogged with dust the remove the dust and make surethe vents are clear and dust free. Use a small brush and can of compressed airto do this.
When you encounter about this issue this is overheating problem maybe the CPU fan is not spinning and faulty already, you need to check the CPU fan and replace a new one.
Computers may not be smarter than people, but if they’re designed
properly, they will shut themselves down before overheating to the
extent that they do themselves damage. If the smart person keeps
turning the notebook back on and figures out a way to foil the
protection, the laptop is probably doomed.
Once a laptop shuts down for
thermal event protection, it may refuse to power back up for a fixed
period of time, five or ten minutes, or it may begin to boot and shut
down immediately as soon as it boots to the point that it can figure
out that its too hot.
The over-temperature protection is generally a
BIOS rather than an operating system function, so one sign of an
overheated laptop is one that shuts itself down while you’re using it
and then refuses to boot as far as the operating system unless you
leave it alone for an hour or so to cool down.
Unless you’ve been
working in a very unfriendly environment, high temperatures, direct
sunlight, etc, you should take even a single overheating shutdown as a
warning to back up your data at the first opportunity and to give the
cooling system a serious cleaning.